Pub Date : 2021-12-23DOI: 10.9734/or/2021/v15i430218
Thiago Sande Miguel, Vinicius Sande Miguel, Daniel Almeida da Costa, Maurício Bastos Pereira
Aims: To describe a Multiple Sclerosis Manifested by Paralysis of Cranial VI Pair with Diplopia. Presentation of Case: A.P.R. female patient, 31 years old, has presented diplopia for 04 days. She denied too many symptoms and comorbidities. No eye trauma and previous eye surgery. Discussion: Multiple Sclerosis (MS) is a chronic, immune-mediated and demyelinating disease of the central nervous system that mainly affects young female adults. About 85% of individuals with MS start the clinical picture in the form of a relapse, and less can open the picture with progressive neurological deficits, although occasional relapses occur during the course of the disease. Eye changes are frequent in MS and are often the first clinical manifestation. Results: MS is a rare comorbidity and there are no exact and concrete epidemiological studies so far. Studies about eye alterations are also scarce in Latin American countries. Ocular involvement may be the first sign of MS. Although MS is an uncommon cause of cranial nerve palsies, its frequency increases in young individuals, with a predominance of abducens nerve palsy, as occurred with the patient in the present report, emphasizing the importance of knowing the profile of this disease. Conclusion: Ocular findings in MS include optic neuritis, retinitis, peripheral vasculitis, ocular motility abnormalities that can manifest as diplopia or nystagmus, and these manifestations should be recognized by ophthalmologists.
{"title":"Multiple Sclerosis Manifested by Paralysis of Cranial VI Pair with Diplopia","authors":"Thiago Sande Miguel, Vinicius Sande Miguel, Daniel Almeida da Costa, Maurício Bastos Pereira","doi":"10.9734/or/2021/v15i430218","DOIUrl":"https://doi.org/10.9734/or/2021/v15i430218","url":null,"abstract":"Aims: To describe a Multiple Sclerosis Manifested by Paralysis of Cranial VI Pair with Diplopia. \u0000Presentation of Case: A.P.R. female patient, 31 years old, has presented diplopia for 04 days. She denied too many symptoms and comorbidities. No eye trauma and previous eye surgery. \u0000Discussion: Multiple Sclerosis (MS) is a chronic, immune-mediated and demyelinating disease of the central nervous system that mainly affects young female adults. About 85% of individuals with MS start the clinical picture in the form of a relapse, and less can open the picture with progressive neurological deficits, although occasional relapses occur during the course of the disease. Eye changes are frequent in MS and are often the first clinical manifestation. \u0000Results: MS is a rare comorbidity and there are no exact and concrete epidemiological studies so far. Studies about eye alterations are also scarce in Latin American countries. \u0000Ocular involvement may be the first sign of MS. Although MS is an uncommon cause of cranial nerve palsies, its frequency increases in young individuals, with a predominance of abducens nerve palsy, as occurred with the patient in the present report, emphasizing the importance of knowing the profile of this disease. \u0000Conclusion: Ocular findings in MS include optic neuritis, retinitis, peripheral vasculitis, ocular motility abnormalities that can manifest as diplopia or nystagmus, and these manifestations should be recognized by ophthalmologists.","PeriodicalId":287685,"journal":{"name":"Ophthalmology Research: An International Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129869321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-20DOI: 10.9734/or/2021/v15i430217
Jui-Teng Lin, Yi Lee
Purpose: To explore (theoretically) the key parameters and their influence on the time profiles of photosensitizer (riboflavin), free radicals, singlet oxygen, oxygen and the efficacy of corneal collagen crosslinking (CXL) in both type-I and oxygen-mediated type-II mechanisms, specially the role of oxygen and the initiator regeneration. Study Design: Numerical solutions of the rate equation of CXL. Place and Duration of Study: New Taipei City, Taiwan, between October, 2021 and November, 2021. Methodology: Coupled kinetic equations are derived and numerically solved under the quasi-steady state condition for the 2-pathway mechanisms of CXL. The key parameters explored include (bI, V, Q', K, K',Q,P) and their influence on the time profiles of photosensitizer (riboflavin, C), radicals (R), singlet oxygen(S), oxygen (X) and efficacy (E), parameters of (K,K',Q) define the relative strength of type-I and type-II process. The oxygen depletion profile, X(t), and the associated singlet oxygen, S(t), depend on the parameters of V, Q' and the initial value of oxygen. The coupling strength given by (bI) governs almost all profiles, where b is an effective absorption parameter and I is the UV light intensity. Results: Our numerical method for CXL dynamic profiles demonstrated the following important features: (i) Type-I and type-II co exit in CXL, in the presence of oxygen. However, there is no type-II when oxygen is depleted or in a condition without oxygen. (ii) Type-I with bimolecular termination, the radical R(t) is a function of [K'(bIgC)]0.5, leading to the steady-state efficacy given by a scaling law of 1/(bI)0.5, in contract to that of type-II which is almost independent to the light intensity. (iii) The depletion rate (2 to 5 minutes) of X(t) is much faster than that of C(t) (10 to 20 minutes), (iv) The pure type-II profile, has a transition point from straight line to saturating curve and matches the depletion point of singlet oxygen S(t). (v) Improved CXL efficacy of type-I and type-II may be achieved by external supply of photoinitiator (riboflavin) and oxygen, respectively.
{"title":"Analysis of Dynamic Efficacy Profile of Corneal Cross-Linking: Role of Oxygen and Rate Constants in Type-I and II Processes","authors":"Jui-Teng Lin, Yi Lee","doi":"10.9734/or/2021/v15i430217","DOIUrl":"https://doi.org/10.9734/or/2021/v15i430217","url":null,"abstract":"Purpose: To explore (theoretically) the key parameters and their influence on the time profiles of photosensitizer (riboflavin), free radicals, singlet oxygen, oxygen and the efficacy of corneal collagen crosslinking (CXL) in both type-I and oxygen-mediated type-II mechanisms, specially the role of oxygen and the initiator regeneration. \u0000Study Design: Numerical solutions of the rate equation of CXL. \u0000Place and Duration of Study: New Taipei City, Taiwan, between October, 2021 and November, 2021. \u0000Methodology: Coupled kinetic equations are derived and numerically solved under the quasi-steady state condition for the 2-pathway mechanisms of CXL. The key parameters explored include (bI, V, Q', K, K',Q,P) and their influence on the time profiles of photosensitizer (riboflavin, C), radicals (R), singlet oxygen(S), oxygen (X) and efficacy (E), parameters of (K,K',Q) define the relative strength of type-I and type-II process. The oxygen depletion profile, X(t), and the associated singlet oxygen, S(t), depend on the parameters of V, Q' and the initial value of oxygen. The coupling strength given by (bI) governs almost all profiles, where b is an effective absorption parameter and I is the UV light intensity. \u0000Results: Our numerical method for CXL dynamic profiles demonstrated the following important features: (i) Type-I and type-II co exit in CXL, in the presence of oxygen. However, there is no type-II when oxygen is depleted or in a condition without oxygen. (ii) Type-I with bimolecular termination, the radical R(t) is a function of [K'(bIgC)]0.5, leading to the steady-state efficacy given by a scaling law of 1/(bI)0.5, in contract to that of type-II which is almost independent to the light intensity. (iii) The depletion rate (2 to 5 minutes) of X(t) is much faster than that of C(t) (10 to 20 minutes), (iv) The pure type-II profile, has a transition point from straight line to saturating curve and matches the depletion point of singlet oxygen S(t). (v) Improved CXL efficacy of type-I and type-II may be achieved by external supply of photoinitiator (riboflavin) and oxygen, respectively.","PeriodicalId":287685,"journal":{"name":"Ophthalmology Research: An International Journal","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124528687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-14DOI: 10.9734/or/2021/v15i330216
S. Suman, H. U. Rathod, Arushi Kumar, Virendra K. Pal
Angular dermoid cysts are common periorbital tumours in children. They are tumours of embryonic origin that arise along bony sutures as a result of abnormal ectodermal sequestration during development. Angular dermoid cysts usually present in early childhood, are characteristically small benign and slow growing lesion. External angular dermoid present in the superotemporal quadrant is more common compared to internal angular dermoid in the superonasal quadrant. Early surgical excision is recommended and performed in the majority of cases, particularly to restore facial cosmesis. Here we report an unusual case of a large internal angular dermoid cyst indenting the globe in a 3-year-old girl presented with left upper eyelid mass at medial angle since one year of age. The cyst was excised completely by anterior orbitotomy through a small superior lid crease incision.
{"title":"Internal Angular Dermoid Indenting on the Globe","authors":"S. Suman, H. U. Rathod, Arushi Kumar, Virendra K. Pal","doi":"10.9734/or/2021/v15i330216","DOIUrl":"https://doi.org/10.9734/or/2021/v15i330216","url":null,"abstract":"Angular dermoid cysts are common periorbital tumours in children. They are tumours of embryonic origin that arise along bony sutures as a result of abnormal ectodermal sequestration during development. Angular dermoid cysts usually present in early childhood, are characteristically small benign and slow growing lesion. External angular dermoid present in the superotemporal quadrant is more common compared to internal angular dermoid in the superonasal quadrant. Early surgical excision is recommended and performed in the majority of cases, particularly to restore facial cosmesis. \u0000Here we report an unusual case of a large internal angular dermoid cyst indenting the globe in a 3-year-old girl presented with left upper eyelid mass at medial angle since one year of age. The cyst was excised completely by anterior orbitotomy through a small superior lid crease incision.","PeriodicalId":287685,"journal":{"name":"Ophthalmology Research: An International Journal","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128679269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-13DOI: 10.9734/or/2021/v15i330214
Thiago Sande Miguel, Vinicius Sande Miguel, Tais Cristina Rossett, Daniel Almeida da Costa, Maurício B Pereira
Aims: To describe the importance of optical coherence tomography and autofluorescence in the documentation of papillary colobomatous fossette. Presentation of Case: F.D.O. A 14-year-old male student is referred for evaluation of the fundus of the eye due to an alteration in the optic disc noticed by another professional who did not feel safe in the follow-up. The patient was completely asymptomatic at the time of the consultation and did not claim previous visual complaints. She denied systemic and ocular comorbidities and did not use any systemic and topical medication. Discussion: The congenital optic disc pit is a rare and typically unilateral congenital anomaly, consisting of a retinal herniation that extends into the subarachnoid space through a lamina cribrosa defect. 8,13,15,16 Although this condition, in most cases, does not present complications and remains asymptomatic, it can sometimes worsen with a significant decrease in visual acuity. This more serious condition can be characterized by important macular alterations, such as serous retinal detachment, cystic degenerations and degenerative pigmentary alterations. 14,16,17,18 The patient in the present report did not have any visual complaints and did not present severe structural and functional retinal damage, which highlights the importance of early diagnosis. Conclusions: The colobomatous papilla pit is characterized by the presence of isolated cavities in the optic disc head secondary to a developmental disorder of the primitive epithelial papilla. Its incidence is 1:10,000 people without sexual or racial predilection. It presents, in most cases, asymptomatic, unilateral in 85-95% of cases and rarely with more than one pit per disc.
{"title":"The Importance of Optical Coherence Tomography and Autofluorescence in the Documentation of Papillary Colobomatous Fossette","authors":"Thiago Sande Miguel, Vinicius Sande Miguel, Tais Cristina Rossett, Daniel Almeida da Costa, Maurício B Pereira","doi":"10.9734/or/2021/v15i330214","DOIUrl":"https://doi.org/10.9734/or/2021/v15i330214","url":null,"abstract":"Aims: To describe the importance of optical coherence tomography and autofluorescence in the documentation of papillary colobomatous fossette. \u0000Presentation of Case: F.D.O. A 14-year-old male student is referred for evaluation of the fundus of the eye due to an alteration in the optic disc noticed by another professional who did not feel safe in the follow-up. The patient was completely asymptomatic at the time of the consultation and did not claim previous visual complaints. \u0000She denied systemic and ocular comorbidities and did not use any systemic and topical medication. \u0000Discussion: The congenital optic disc pit is a rare and typically unilateral congenital anomaly, consisting of a retinal herniation that extends into the subarachnoid space through a lamina cribrosa defect. 8,13,15,16 \u0000Although this condition, in most cases, does not present complications and remains asymptomatic, it can sometimes worsen with a significant decrease in visual acuity. This more serious condition can be characterized by important macular alterations, such as serous retinal detachment, cystic degenerations and degenerative pigmentary alterations. 14,16,17,18 The patient in the present report did not have any visual complaints and did not present severe structural and functional retinal damage, which highlights the importance of early diagnosis. \u0000Conclusions: The colobomatous papilla pit is characterized by the presence of isolated cavities in the optic disc head secondary to a developmental disorder of the primitive epithelial papilla. \u0000Its incidence is 1:10,000 people without sexual or racial predilection. It presents, in most cases, asymptomatic, unilateral in 85-95% of cases and rarely with more than one pit per disc.","PeriodicalId":287685,"journal":{"name":"Ophthalmology Research: An International Journal","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115356519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-10DOI: 10.9734/or/2021/v15i330212
Kishan A. Makvana, Apurva H. Suthar
Background and Aim: Despite considerable progress made in the treatment of Retinopathy of prematurity (ROP), it is still a common cause of reduced vision in children in developed countries, and its prevalence is increasing. This is a preventable disease and responds to treatments appropriately if diagnosed at early stages, but in case of delayed diagnosis and treatment, it may lead to blindness. The aim of the present study is to describe the incidence, severity, and risk factors of ROP in a tertiary healthcare center. Material and Methods: This was a prospective, observational, nonrandomized study conducted in a tertiary-level neonatal intensive care unit (NICU) of a teaching hospital in Gujarat. A total of 130 preterm neonates admitted in the NICU during the study period were screened for ROP as per the guidelines of NNF of India. Screening was done under topical anesthesia, and findings were documented according to the International Classification for Retinopathy of Prematurity recommendations. The data were analyzed for gestational age, birth weight, and systemic factors predisposing to ROP. Results: Of the 130 neonates, 37 neonates were found to have ROP, with the incidence of ROP being 28.4%. The mean birth weight (1388 ± 312 g) and the mean gestational age (32.21 ± 2.50 wk) Out of the 37 neonates with ROP, 14 had a gestational age of > 32 weeks and/or birth weight of > 1500 g. ROP was classified into type 1 and type 2 as per the ETROP study, 14 (39.39%) neonates had type 1 or treatable ROP; there were no cases of APROP in our study; ROP regressed without any intervention in 13 neonates; 7 neonates were defaulters; and 11 neonates were treated with laser. Conclusion: ROP is strongly associated with smaller, more immature, and sicker neonates. However, in our study, about 40% of neonates who developed ROP were of higher gestation (> 32 wk) and birth weight (> 1500 g). The analysis of risk factors for ROP development will help to understand and predict it in severe preterm infants.
{"title":"Prevalence and Risk Factors of Retinopathy of Prematurity (ROP): A Cross-Sectional Study","authors":"Kishan A. Makvana, Apurva H. Suthar","doi":"10.9734/or/2021/v15i330212","DOIUrl":"https://doi.org/10.9734/or/2021/v15i330212","url":null,"abstract":"Background and Aim: Despite considerable progress made in the treatment of Retinopathy of prematurity (ROP), it is still a common cause of reduced vision in children in developed countries, and its prevalence is increasing. This is a preventable disease and responds to treatments appropriately if diagnosed at early stages, but in case of delayed diagnosis and treatment, it may lead to blindness. The aim of the present study is to describe the incidence, severity, and risk factors of ROP in a tertiary healthcare center. \u0000Material and Methods: This was a prospective, observational, nonrandomized study conducted in a tertiary-level neonatal intensive care unit (NICU) of a teaching hospital in Gujarat. A total of 130 preterm neonates admitted in the NICU during the study period were screened for ROP as per the guidelines of NNF of India. Screening was done under topical anesthesia, and findings were documented according to the International Classification for Retinopathy of Prematurity recommendations. The data were analyzed for gestational age, birth weight, and systemic factors predisposing to ROP. \u0000Results: Of the 130 neonates, 37 neonates were found to have ROP, with the incidence of ROP being 28.4%. The mean birth weight (1388 ± 312 g) and the mean gestational age (32.21 ± 2.50 wk) Out of the 37 neonates with ROP, 14 had a gestational age of > 32 weeks and/or birth weight of > 1500 g. ROP was classified into type 1 and type 2 as per the ETROP study, 14 (39.39%) neonates had type 1 or treatable ROP; there were no cases of APROP in our study; ROP regressed without any intervention in 13 neonates; 7 neonates were defaulters; and 11 neonates were treated with laser. \u0000Conclusion: ROP is strongly associated with smaller, more immature, and sicker neonates. However, in our study, about 40% of neonates who developed ROP were of higher gestation (> 32 wk) and birth weight (> 1500 g). The analysis of risk factors for ROP development will help to understand and predict it in severe preterm infants.","PeriodicalId":287685,"journal":{"name":"Ophthalmology Research: An International Journal","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126489730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-08DOI: 10.9734/or/2021/v15i230211
A. Ogunro, G. Nathaniel
Aims: To evaluate the surgical outcome of combined phacoemulsification cataract surgery plus posterior chamber intraocular and trabeculectomy with adjunctive 5-Fluorouracil versus trabeculectomy with 5-Fluorouracil in the management of Primary open angle glaucoma. Study Design: it was retrospective comparative interventional study Place and Duration of Study: Glaucoma Unit, Eye foundation Hospital Ikeja, Lagos, Nigeria between January 2015, and December 2017 Materials and Methods: A retrospective review of consecutive 29 eyes (29 patients) who had trabeculectomy with 5-Fluorouracil compared with 26 eyes (26 patients) who had combined phacotrabeculectomy with 5-Fluorouracil from 2015 to 2017. All patients had a minimum follow up of 3 months. Results: The mean age of 54.48±14.42 years in Trabeculectomy group was significantly (p>0.001) lower than 70.76±7.22 years for the Phacotrabeculectomy group. The mean preoperative intraocular pressure (IOP) and number of glaucoma medication were similar for the two groups (19.86±9.63mmHg versus 22.23±8.99mmHg; 2.66±1.20 versus 2.73±0.72 medication, trabeculectomy versus phacotrabeculectomy respectively). The postoperative IOP and glaucoma medication after a mean follow up period of 17.11±9.81 months was not significantly different between the two groups (11.55±2.71mmHg versus 12.31±4.33mmHg, p=0.436 for trabeculectomy versus phacotrabeculectomy respectively). Both groups significantly required fewer number of antiglaucoma medication at final follow-up (1.14±0.92 vs 1.46±1.10, trabeculectomy vs phacotrabeculectomy. In the trabeculectomy group, 25 (86.2%) had IOP of ≤15mmHg with or without topical antiglaucoma drops. In the phacotrabeculectomy, 21 (80.76%) had IOP of ≤15mmHg with or without topical antiglaucoma medication (Qualified success). On the other hand, 8 (27.58%) had IOP of ≤15mmHg without topical antiglaucoma medication at the end of the follow-up in the trabeculectomy (Complete success). In the phacotrabeculectomy group, 5 (19.23%) had final IOP of ≤15mmHg without topical antiglaucoma medication. Few complications occurred in both groups. Conclusion: Phacotrabeculectomy augmented with 5-Fluorouracil gave comparable surgical success to 5-Fluorouracil augmented trabeculectomy alone.
目的:评价白内障超声乳化联合后房眼内小梁切除术加5-氟尿嘧啶辅助治疗与5-氟尿嘧啶小梁切除术治疗原发性开角型青光眼的疗效。研究设计:回顾性比较介入研究地点和研究时间:2015年1月至2017年12月尼日利亚拉各斯Ikeja眼科基础医院青光眼科材料与方法:回顾性分析2015年至2017年连续29眼(29例)行5-氟尿嘧啶小梁切除术与26眼(26例)行5-氟尿嘧啶联合小梁切除术。所有患者至少随访3个月。结果:小梁切除术组患者平均年龄(54.48±14.42岁)显著低于超声小梁切除术组(70.76±7.22岁)(p>0.001)。两组患者术前平均眼压(IOP)和青光眼用药次数相似(19.86±9.63mmHg vs 22.23±8.99mmHg;(分别为2.66±1.20和2.73±0.72)。平均随访17.11±9.81个月，两组患者术后IOP和青光眼药物治疗差异无统计学意义(分别为11.55±2.71mmHg和12.31±4.33mmHg, p=0.436)。两组在最后随访时需要的抗青光眼药物数量(1.14±0.92 vs 1.46±1.10)均显著减少，小梁切除术vs光小梁切除术。在小梁切除术组中，25例(86.2%)的IOP≤15mmHg，使用或不使用局部抗青光眼滴剂。在晶状体小梁切除术中，21例(80.76%)患者的眼压≤15mmHg，使用或不使用局部抗青光眼药物(合格成功)。另一方面，8例(27.58%)患者在小梁切除术随访结束时未使用局部抗青光眼药物，IOP≤15mmHg(完全成功)。在没有外用抗青光眼药物的情况下，光小梁切除术组最终IOP≤15mmHg的患者有5例(19.23%)。两组均无并发症发生。结论:5-氟尿嘧啶增强小梁切除术与单独5-氟尿嘧啶增强小梁切除术的手术成功率相当。
{"title":"Intraocular Pressure Reduction and Complications Profile of Trabeculectomy with 5 Fluorouracil Versus Phaco-trabeculectomy with 5 Fluorouracil in Nigerian Glaucoma Patients","authors":"A. Ogunro, G. Nathaniel","doi":"10.9734/or/2021/v15i230211","DOIUrl":"https://doi.org/10.9734/or/2021/v15i230211","url":null,"abstract":"Aims: To evaluate the surgical outcome of combined phacoemulsification cataract surgery plus posterior chamber intraocular and trabeculectomy with adjunctive 5-Fluorouracil versus trabeculectomy with 5-Fluorouracil in the management of Primary open angle glaucoma. \u0000Study Design: it was retrospective comparative interventional study \u0000Place and Duration of Study: Glaucoma Unit, Eye foundation Hospital Ikeja, Lagos, Nigeria between January 2015, and December 2017 \u0000Materials and Methods: A retrospective review of consecutive 29 eyes (29 patients) who had trabeculectomy with 5-Fluorouracil compared with 26 eyes (26 patients) who had combined phacotrabeculectomy with 5-Fluorouracil from 2015 to 2017. All patients had a minimum follow up of 3 months. \u0000Results: The mean age of 54.48±14.42 years in Trabeculectomy group was significantly (p>0.001) lower than 70.76±7.22 years for the Phacotrabeculectomy group. The mean preoperative intraocular pressure (IOP) and number of glaucoma medication were similar for the two groups (19.86±9.63mmHg versus 22.23±8.99mmHg; 2.66±1.20 versus 2.73±0.72 medication, trabeculectomy versus phacotrabeculectomy respectively). The postoperative IOP and glaucoma medication after a mean follow up period of 17.11±9.81 months was not significantly different between the two groups (11.55±2.71mmHg versus 12.31±4.33mmHg, p=0.436 for trabeculectomy versus phacotrabeculectomy respectively). Both groups significantly required fewer number of antiglaucoma medication at final follow-up (1.14±0.92 vs 1.46±1.10, trabeculectomy vs phacotrabeculectomy. In the trabeculectomy group, 25 (86.2%) had IOP of ≤15mmHg with or without topical antiglaucoma drops. In the phacotrabeculectomy, 21 (80.76%) had IOP of ≤15mmHg with or without topical antiglaucoma medication (Qualified success). On the other hand, 8 (27.58%) had IOP of ≤15mmHg without topical antiglaucoma medication at the end of the follow-up in the trabeculectomy (Complete success). In the phacotrabeculectomy group, 5 (19.23%) had final IOP of ≤15mmHg without topical antiglaucoma medication. \u0000Few complications occurred in both groups. \u0000Conclusion: Phacotrabeculectomy augmented with 5-Fluorouracil gave comparable surgical success to 5-Fluorouracil augmented trabeculectomy alone.","PeriodicalId":287685,"journal":{"name":"Ophthalmology Research: An International Journal","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134031743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-06DOI: 10.9734/or/2021/v15i230209
Aécio Cunha Hora, Thiago Sande Miguel, Tais Cristina Rossett, Victor Roisman, Daniel Almeida da Costa
Aims: To describe a Fabry disease, that it’s diagnosis was only possible through the molecular test Presentation of Case: L.A.P. female, 42 years old, lawyer, seen by the ophthalmology department for routine consultation only with refractive complaints. Fundus of the eye: Mild narrowing with increased vascular brightness and presence of pathological arteriovenous crossings. The rest of the exam was within normal limits. Therefore, a genetic test with the dosage of the α-Gal enzyme was requested, which evidenced the alteration in it, confirming the diagnosis of Fabry disease. Discussion: A Fabry Disease (FD) is an inborn error of glycosphingolipid (GL) metabolism, resulting from deficient activity of the enzyme alpha-galactosidase A (α -Gal). It has X-chromosome-linked inheritance, affecting mainly males, with an estimated prevalence of 1:40,000 males. The expression of the disease in heterozygous female patients can vary from an asymptomatic condition to a severe systemic disease, like that which occurs in men. Conclusions: The ophthalmological examination played an important role in the diagnosis, as this change is highly suggestive of the disease, in order to avoid erroneous and late diagnoses that can cause consequences for patients with this condition.
{"title":"The Importance of Molecular Testing for the Diagnosis of Fabry Disease Manifested by Cornea Verticillata Only","authors":"Aécio Cunha Hora, Thiago Sande Miguel, Tais Cristina Rossett, Victor Roisman, Daniel Almeida da Costa","doi":"10.9734/or/2021/v15i230209","DOIUrl":"https://doi.org/10.9734/or/2021/v15i230209","url":null,"abstract":"Aims: To describe a Fabry disease, that it’s diagnosis was only possible through the molecular test \u0000Presentation of Case: L.A.P. female, 42 years old, lawyer, seen by the ophthalmology department for routine consultation only with refractive complaints. Fundus of the eye: Mild narrowing with increased vascular brightness and presence of pathological arteriovenous crossings. The rest of the exam was within normal limits. \u0000Therefore, a genetic test with the dosage of the α-Gal enzyme was requested, which evidenced the alteration in it, confirming the diagnosis of Fabry disease. \u0000Discussion: A Fabry Disease (FD) is an inborn error of glycosphingolipid (GL) metabolism, resulting from deficient activity of the enzyme alpha-galactosidase A (α -Gal). It has X-chromosome-linked inheritance, affecting mainly males, with an estimated prevalence of 1:40,000 males. The expression of the disease in heterozygous female patients can vary from an asymptomatic condition to a severe systemic disease, like that which occurs in men. \u0000Conclusions: The ophthalmological examination played an important role in the diagnosis, as this change is highly suggestive of the disease, in order to avoid erroneous and late diagnoses that can cause consequences for patients with this condition.","PeriodicalId":287685,"journal":{"name":"Ophthalmology Research: An International Journal","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133082091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-11-06DOI: 10.9734/or/2021/v15i230210
Thiago Sande Miguel, Ana Luiza Mansur Souto, Fernanda Bekman Diniz Mitleg Rocha, Tais Cristina Rossett, Felipe Bekman Diniz Mitleg Rocha, Eduardo F Damasceno, Daniel Almeida da Costa
Aims: To describe a solar retinopathy. Presentation of Case: ALPN, 29 years old, male, with cognitive deficit that started after a car accident that occurred at the age of 6 years, attends the ophthalmology clinic of the University Hospital Antônio Pedro, Rio de Janeiro, Brazil with complaints of decreased visual acuity and metamorphopsia in both eyes (AO) started approximately 8 months ago. Family members reported that after the accident, the patient had the habit of spending mornings and afternoons looking at the sun. Discussion: Solar retinopathy is caused by the photochemical and thermal effects of ultraviolet radiation on retinal cells, especially in the outer retina and retinal pigment epithelium (RPE). Symptoms can start a few hours after direct observation of the sun, and in most cases a bilateral involvement, although asymmetrically with variable visual acuity. Conclusions: A Solar retinopathy has a multifactorial origin, as it is related to the exposure time and the susceptibility of each individual. The use of hats and sunglasses with protection against ultraviolet rays and anti-reflection are effective preventive measures to be adopted if there is a need for exposure and observation of sunlight.
{"title":"Solar Retinopathy: Case Report","authors":"Thiago Sande Miguel, Ana Luiza Mansur Souto, Fernanda Bekman Diniz Mitleg Rocha, Tais Cristina Rossett, Felipe Bekman Diniz Mitleg Rocha, Eduardo F Damasceno, Daniel Almeida da Costa","doi":"10.9734/or/2021/v15i230210","DOIUrl":"https://doi.org/10.9734/or/2021/v15i230210","url":null,"abstract":"Aims: To describe a solar retinopathy. \u0000Presentation of Case: ALPN, 29 years old, male, with cognitive deficit that started after a car accident that occurred at the age of 6 years, attends the ophthalmology clinic of the University Hospital Antônio Pedro, Rio de Janeiro, Brazil with complaints of decreased visual acuity and metamorphopsia in both eyes (AO) started approximately 8 months ago. Family members reported that after the accident, the patient had the habit of spending mornings and afternoons looking at the sun. \u0000Discussion: Solar retinopathy is caused by the photochemical and thermal effects of ultraviolet radiation on retinal cells, especially in the outer retina and retinal pigment epithelium (RPE). Symptoms can start a few hours after direct observation of the sun, and in most cases a bilateral involvement, although asymmetrically with variable visual acuity. \u0000Conclusions: A Solar retinopathy has a multifactorial origin, as it is related to the exposure time and the susceptibility of each individual. The use of hats and sunglasses with protection against ultraviolet rays and anti-reflection are effective preventive measures to be adopted if there is a need for exposure and observation of sunlight.","PeriodicalId":287685,"journal":{"name":"Ophthalmology Research: An International Journal","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123682684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-10-18DOI: 10.9734/or/2021/v15i230208
G. Karetsos, Aristeidis Chandrinos
Contrast is a measure of the amount of lightness or darkness an object has in relationship to its background. Usually, it is described as Contrast Sensitivity (CS), which actually is the inverse of the contrast threshold. More often than not, stimulus set includes grating patterns of various sizes that are presented in a stationary manner or are dynamically presented by reversing the contrast at different rates. A variety of tests were developed, in order to asses and evaluate contrast sensitivity, in many different ways. A classical method, to check for contrast sensitivity, is the Pelli-Robson contrast sensitivity chart. The Bailey-Lovie contrast sensitivity chart is another letter chart that deals with differences in the number of letters read on the high and low contrast charts, with a main drawback, the necessity to follow the size of the letters. The Functional Acuity Contrast Test is designed to identify vision loss from a variety of disorders, many of which are not detected by high or low contrast Snellen Acuity tests. The MARS Letter Contrast Sensitivity Test shows good agreement with the Pelli-Robson test and possibly it may be the alternative to the Pelli-Robson chart, in clinical practice and research.
{"title":"Contrast Sensitivity Measurement Tests and Methods","authors":"G. Karetsos, Aristeidis Chandrinos","doi":"10.9734/or/2021/v15i230208","DOIUrl":"https://doi.org/10.9734/or/2021/v15i230208","url":null,"abstract":"Contrast is a measure of the amount of lightness or darkness an object has in relationship to its background. Usually, it is described as Contrast Sensitivity (CS), which actually is the inverse of the contrast threshold. More often than not, stimulus set includes grating patterns of various sizes that are presented in a stationary manner or are dynamically presented by reversing the contrast at different rates. \u0000A variety of tests were developed, in order to asses and evaluate contrast sensitivity, in many different ways. A classical method, to check for contrast sensitivity, is the Pelli-Robson contrast sensitivity chart. \u0000The Bailey-Lovie contrast sensitivity chart is another letter chart that deals with differences in the number of letters read on the high and low contrast charts, with a main drawback, the necessity to follow the size of the letters. \u0000The Functional Acuity Contrast Test is designed to identify vision loss from a variety of disorders, many of which are not detected by high or low contrast Snellen Acuity tests. The MARS Letter Contrast Sensitivity Test shows good agreement with the Pelli-Robson test and possibly it may be the alternative to the Pelli-Robson chart, in clinical practice and research.","PeriodicalId":287685,"journal":{"name":"Ophthalmology Research: An International Journal","volume":"339 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116684670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-14DOI: 10.9734/OR/2021/V15I130206
Shazia Kanwal, R. Manzoor, Ghazala Iqbal, Zehwa Mazhar
Objective: To find a relationship between visual acuity and contrast sensitivity testing in low vision patients of different age groups. Effect of visual acuity and contrast sensitivity on increasing age of low vision patients. Study Design: Descriptive cross-sectional study. Materials and Methods: The study included low vision patients of different age groups. Data was collected by Performa. Visual acuity was assessed by ETDRS chart and contrast sensitivity was checked by the peli-Robson chart at different distances. Data were analyzed by using SPSS 22.00. Results: The study included a total of 64 patients with low vision of different age groups. Out of 64 patients, 31(48.44%) were males and 33(51.56%) were females. Patients with age group 1-15(15.63%). Patients with age group16-30(50%) and patients with age group above 30(34.36%). Relation between CS and VA of RE with age groups. In the age group 1-15, 2 patients have VA 0.9 and CS 0.10, in age group 16-30, 4 patients have VA 0.9 and CS 0.30 and in the age group of above 30 years 2 patients have VA 1 and CS 0.30. The relation between CS and VA of LE in different age groups of low vision patients in age group 1-15, 2 patients have VA 0.7 and CS 1.35 similarly in age group 16-30, 4 patients have VA 0.9 and CS 0.30 and in the age group above 30 years 2 patients have VA 1.3 and CS 0.75. Conclusion: It is concluded that the statistical value is significant P_ 0.00 which shows a significant result. And it shows that there is a strong relationship between visual acuity and contrast sensitivity as age increases visual acuity and contrast decreases so age has to affect visual functions.
{"title":"Relationship between Visual Acuity and Contrast Sensitivity Testing in Low Vision Patients of Different Age Groups","authors":"Shazia Kanwal, R. Manzoor, Ghazala Iqbal, Zehwa Mazhar","doi":"10.9734/OR/2021/V15I130206","DOIUrl":"https://doi.org/10.9734/OR/2021/V15I130206","url":null,"abstract":"Objective: To find a relationship between visual acuity and contrast sensitivity testing in low vision patients of different age groups. Effect of visual acuity and contrast sensitivity on increasing age of low vision patients. \u0000Study Design: Descriptive cross-sectional study. \u0000Materials and Methods: The study included low vision patients of different age groups. Data was collected by Performa. Visual acuity was assessed by ETDRS chart and contrast sensitivity was checked by the peli-Robson chart at different distances. Data were analyzed by using SPSS 22.00. \u0000Results: The study included a total of 64 patients with low vision of different age groups. Out of 64 patients, 31(48.44%) were males and 33(51.56%) were females. Patients with age group 1-15(15.63%). Patients with age group16-30(50%) and patients with age group above 30(34.36%). Relation between CS and VA of RE with age groups. In the age group 1-15, 2 patients have VA 0.9 and CS 0.10, in age group 16-30, 4 patients have VA 0.9 and CS 0.30 and in the age group of above 30 years 2 patients have VA 1 and CS 0.30. The relation between CS and VA of LE in different age groups of low vision patients in age group 1-15, 2 patients have VA 0.7 and CS 1.35 similarly in age group 16-30, 4 patients have VA 0.9 and CS 0.30 and in the age group above 30 years 2 patients have VA 1.3 and CS 0.75. \u0000Conclusion: It is concluded that the statistical value is significant P_ 0.00 which shows a significant result. And it shows that there is a strong relationship between visual acuity and contrast sensitivity as age increases visual acuity and contrast decreases so age has to affect visual functions.","PeriodicalId":287685,"journal":{"name":"Ophthalmology Research: An International Journal","volume":"143 12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129420690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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