Pub Date : 2021-05-29DOI: 10.5772/INTECHOPEN.98260
Minghui Deng, Song Chen, Xiaogang Wang
During phacoemulsification for cataracts, the surgeon may encounter various challenges and should therefore be trained to handle them. This chapter will share an example of clinical cases encountered by the author in clinical practice, which mainly includes the successful implantation of a trifocal intraocular lens in the capsular bag after posterior capsular tear during posterior polar cataract surgery as well as cataract surgery design after corneal refractive surgery, shrinkage, and treatment of capsular opening in patients with retinitis pigmentosa after cataract surgery to provide a reference for clinicians.
{"title":"Special Cases in Cataract Surgery","authors":"Minghui Deng, Song Chen, Xiaogang Wang","doi":"10.5772/INTECHOPEN.98260","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.98260","url":null,"abstract":"During phacoemulsification for cataracts, the surgeon may encounter various challenges and should therefore be trained to handle them. This chapter will share an example of clinical cases encountered by the author in clinical practice, which mainly includes the successful implantation of a trifocal intraocular lens in the capsular bag after posterior capsular tear during posterior polar cataract surgery as well as cataract surgery design after corneal refractive surgery, shrinkage, and treatment of capsular opening in patients with retinitis pigmentosa after cataract surgery to provide a reference for clinicians.","PeriodicalId":385568,"journal":{"name":"Current Cataract Surgical Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126649210","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 : 2021-04-20DOI: 10.5772/INTECHOPEN.96528
G. Labiris, Eirini-Kanella Panagiotopoulou
Presbyopia is a prevalent productivity-reducing, age-related visual disorder that results in a progressive near vision impairment. Conventional treatment modalities (ie. presbyopic spectacles or contact lenses) are associated with poor acceptance, productivity loss and negative impact on life quality. However, a variety of surgical methods are available to address presbyopia; among them, multifocal and multifocal toric intraocular lenses (IOLs) and monovision techniques. For the best possible refractive outcomes, the overall management of presbyopic patients is necessary. Specifically, patient selection according to personality and daily activities, topography, aberrometry, astigmatism, pupil and fundus assessment, ophthalmic surface, and premium lens selection should be taken into consideration. Additionally, image-guided surgery could increase the accuracy in multifocal/multifocal toric IOL implantation, and optimize the refractive outcome increasing patient satisfaction. Primary objective of this chapter is to analyze the fundamental preoperative, intraoperative and postoperative management of patients that undergo pseudophakic presbyopic corrections with conventional or digital-marking assisted techniques.
{"title":"Pseudophakic Presbyopic Corrections","authors":"G. Labiris, Eirini-Kanella Panagiotopoulou","doi":"10.5772/INTECHOPEN.96528","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.96528","url":null,"abstract":"Presbyopia is a prevalent productivity-reducing, age-related visual disorder that results in a progressive near vision impairment. Conventional treatment modalities (ie. presbyopic spectacles or contact lenses) are associated with poor acceptance, productivity loss and negative impact on life quality. However, a variety of surgical methods are available to address presbyopia; among them, multifocal and multifocal toric intraocular lenses (IOLs) and monovision techniques. For the best possible refractive outcomes, the overall management of presbyopic patients is necessary. Specifically, patient selection according to personality and daily activities, topography, aberrometry, astigmatism, pupil and fundus assessment, ophthalmic surface, and premium lens selection should be taken into consideration. Additionally, image-guided surgery could increase the accuracy in multifocal/multifocal toric IOL implantation, and optimize the refractive outcome increasing patient satisfaction. Primary objective of this chapter is to analyze the fundamental preoperative, intraoperative and postoperative management of patients that undergo pseudophakic presbyopic corrections with conventional or digital-marking assisted techniques.","PeriodicalId":385568,"journal":{"name":"Current Cataract Surgical Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122911189","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 : 2021-03-22DOI: 10.5772/INTECHOPEN.96556
Liu Qian
Continuous curvilinear capsulorhexis (CCC) is an important step in of modern phacoemulsification, which has crucial influence on the surgical process and prognosis. In this chapter, we mainly discuss following aspects: Preoperative preparation, Effects of incision on capsulorhexis, Capsulorhexis, Special cases of capsulorhexis and Capsulorhexis assisted by femtosecond laser. The problem need to pay attention and the solution way in above aspects will be elaborated.
{"title":"Continuous Curvilinear Capsulorhexis","authors":"Liu Qian","doi":"10.5772/INTECHOPEN.96556","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.96556","url":null,"abstract":"Continuous curvilinear capsulorhexis (CCC) is an important step in of modern phacoemulsification, which has crucial influence on the surgical process and prognosis. In this chapter, we mainly discuss following aspects: Preoperative preparation, Effects of incision on capsulorhexis, Capsulorhexis, Special cases of capsulorhexis and Capsulorhexis assisted by femtosecond laser. The problem need to pay attention and the solution way in above aspects will be elaborated.","PeriodicalId":385568,"journal":{"name":"Current Cataract Surgical Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127553965","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 : 2021-03-05DOI: 10.5772/INTECHOPEN.96182
Chen Xu
Premium multifocal IOLs are a popular option for cataract or presbyopia patients today. Patients can achieve high levels of success and satisfaction after these advanced technology IOLs implantation. However, adequate preoperative clinical evaluation including patient selection, optical and anatomical examination is crucial to reach a success case. Based on the preoperative diagnosis including the corneal astigmatism, biometry measurement, IOL power calculation, presbyopia correcting IOLs’ indications and contraindications should be assessed for IOL selection strategy. Surgical procedure should be technically optimized to achieve the best outcomes. Adequate management of both satisfied and unsatisfied patients will improve the benefit of current premium IOLs.
{"title":"Successful Premium Multifocal IOL Surgery: Key Issues and Pearls","authors":"Chen Xu","doi":"10.5772/INTECHOPEN.96182","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.96182","url":null,"abstract":"Premium multifocal IOLs are a popular option for cataract or presbyopia patients today. Patients can achieve high levels of success and satisfaction after these advanced technology IOLs implantation. However, adequate preoperative clinical evaluation including patient selection, optical and anatomical examination is crucial to reach a success case. Based on the preoperative diagnosis including the corneal astigmatism, biometry measurement, IOL power calculation, presbyopia correcting IOLs’ indications and contraindications should be assessed for IOL selection strategy. Surgical procedure should be technically optimized to achieve the best outcomes. Adequate management of both satisfied and unsatisfied patients will improve the benefit of current premium IOLs.","PeriodicalId":385568,"journal":{"name":"Current Cataract Surgical Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133983600","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 : 2021-01-20DOI: 10.5772/INTECHOPEN.95467
O. Esteban, J. Mateo, P. Casas, J.S. Lara, J. Ascaso
Because of the application of vitreoretinal surgical techniques to a broader range of posterior segment diseases and because cataract develops frequently in postvitrectomy eyes, cataract surgeons should be familiar with the challenges of cataract extraction in vitrectomized eyes. Cataract surgery after pars plana vitrectomy significantly improves visual acuity in 85% of cases, limited by retinal comorbidity and surgical complications. However, despite recent advances, this surgery remains a special challenge. The cataract surgeon can prepare for these challenges with awareness of such potential factors as an excessively mobile posterior capsule, silicon oil removal and special considerations concerning intraocular lens selection and power calculation. And consider the postoperative complications as posterior capsule opacification or refractive errors.
{"title":"Cataract Surgery in Post-Vitrectomized Eyes","authors":"O. Esteban, J. Mateo, P. Casas, J.S. Lara, J. Ascaso","doi":"10.5772/INTECHOPEN.95467","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.95467","url":null,"abstract":"Because of the application of vitreoretinal surgical techniques to a broader range of posterior segment diseases and because cataract develops frequently in postvitrectomy eyes, cataract surgeons should be familiar with the challenges of cataract extraction in vitrectomized eyes. Cataract surgery after pars plana vitrectomy significantly improves visual acuity in 85% of cases, limited by retinal comorbidity and surgical complications. However, despite recent advances, this surgery remains a special challenge. The cataract surgeon can prepare for these challenges with awareness of such potential factors as an excessively mobile posterior capsule, silicon oil removal and special considerations concerning intraocular lens selection and power calculation. And consider the postoperative complications as posterior capsule opacification or refractive errors.","PeriodicalId":385568,"journal":{"name":"Current Cataract Surgical Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131592242","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 : 2021-01-20DOI: 10.5772/INTECHOPEN.95770
H. D. Silva, Rostan Silvestre da Silva, E. D. Silva, Maria do Carmo Tatiana Dória Silva, C. P. Dória, Cristiane Pereira Dória
Neurophysiological anatomy of natural binocular vision shows the need to focus with both eyes to jointly produce the two corneas accommodation, correcting, in a compensatory way, the divergences inherent in the two different images, of the same visual field projected in the two distinct spaces, the two retinas. Corneal accommodation is part of the forced convection mechanism for the transfer of mobile mass in the cornea, trabecular meshwork and retina, to inhibit the accumulation of dehydrated intraocular metabolic residue, which can cause refractive errors in the cornea, obstruction of the trabecular meshwork and reduction of the amplitude of the signals produced by the phototransducers and sent to the brain. The IOL monovision surgical implantation technique differs from the physiology of natural binocular vision, which can cause after surgery disorders, described in this chapter, in that it imposes a different adaptation from the neurophysiological anatomy of human vision in addition to favoring the continuous progression of residue accumulation dehydrated intraocular metabolic and stimulate ocular.
{"title":"Visual Impairment Caused by Monovision Surgical Design","authors":"H. D. Silva, Rostan Silvestre da Silva, E. D. Silva, Maria do Carmo Tatiana Dória Silva, C. P. Dória, Cristiane Pereira Dória","doi":"10.5772/INTECHOPEN.95770","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.95770","url":null,"abstract":"Neurophysiological anatomy of natural binocular vision shows the need to focus with both eyes to jointly produce the two corneas accommodation, correcting, in a compensatory way, the divergences inherent in the two different images, of the same visual field projected in the two distinct spaces, the two retinas. Corneal accommodation is part of the forced convection mechanism for the transfer of mobile mass in the cornea, trabecular meshwork and retina, to inhibit the accumulation of dehydrated intraocular metabolic residue, which can cause refractive errors in the cornea, obstruction of the trabecular meshwork and reduction of the amplitude of the signals produced by the phototransducers and sent to the brain. The IOL monovision surgical implantation technique differs from the physiology of natural binocular vision, which can cause after surgery disorders, described in this chapter, in that it imposes a different adaptation from the neurophysiological anatomy of human vision in addition to favoring the continuous progression of residue accumulation dehydrated intraocular metabolic and stimulate ocular.","PeriodicalId":385568,"journal":{"name":"Current Cataract Surgical Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129703529","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 : 2020-12-21DOI: 10.5772/intechopen.95416
Marina Aguilar González, J. V. Arteaga, J. M. Cotino
Cataract surgery decreases significantly and with maintained effect intraocular pressure (IOP) in both normal eyes as in eyes with glaucoma. In patients with cataracts and glaucoma, it can be performed, isolated or in combination with other techniques, such as the following: minimally invasive glaucoma surgery (MIGS) in patients with mild/moderate glaucoma that do not require a high tensional decrease; and conventional glaucoma surgery techniques in patients with advanced glaucoma. Although lower than with conventional techniques, MIGS trabecular surgery has a good IOP lowering effect and provides some of the following advantages: a more physiological approach; little traumatic; without bleb; and it does not limit other techniques in the future. Different techniques that combinated or not with cataract surgery facilitate the exit of aqueous humor through the trabecular meshwork (TM) have been described. Our aim in this chapter is to review the newest of them, such as the following: iStent; ELT (Excimer Laser Trabeculostomy); kahook; ABiC; and OMNI.
{"title":"Cataract Surgery Combined with Trabecular MIGS (Minimally Invasive Glaucoma Surgery)","authors":"Marina Aguilar González, J. V. Arteaga, J. M. Cotino","doi":"10.5772/intechopen.95416","DOIUrl":"https://doi.org/10.5772/intechopen.95416","url":null,"abstract":"Cataract surgery decreases significantly and with maintained effect intraocular pressure (IOP) in both normal eyes as in eyes with glaucoma. In patients with cataracts and glaucoma, it can be performed, isolated or in combination with other techniques, such as the following: minimally invasive glaucoma surgery (MIGS) in patients with mild/moderate glaucoma that do not require a high tensional decrease; and conventional glaucoma surgery techniques in patients with advanced glaucoma. Although lower than with conventional techniques, MIGS trabecular surgery has a good IOP lowering effect and provides some of the following advantages: a more physiological approach; little traumatic; without bleb; and it does not limit other techniques in the future. Different techniques that combinated or not with cataract surgery facilitate the exit of aqueous humor through the trabecular meshwork (TM) have been described. Our aim in this chapter is to review the newest of them, such as the following: iStent; ELT (Excimer Laser Trabeculostomy); kahook; ABiC; and OMNI.","PeriodicalId":385568,"journal":{"name":"Current Cataract Surgical Techniques","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131087763","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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