Japanese Journal of Ophthalmology最新文献

Purpose: To report the 3-year outcomes of surgical bleb revision (SBR) with mitomycin C (MMC) for early scarring bleb after trabeculectomy (TLE).

Study design: Retrospective observational study.

Methods: We included glaucoma patients aged ≧ 18 who underwent SBR with MMC within 6 months of their first TLE at Kobe University Hospital and were followed for at least 6 months. The primary outcome measure was the three-year success rate of SBR. We defined surgical success as: intraocular pressure (IOP) reduction ≧ 20% from baseline and 5 ≦ IOP ≦ 18 mmHg. Failure was defined when the IOP deviated from the criteria, when the eye required additional glaucoma surgery, and when the eye lost light perception. Complete success (CS) was success without glaucoma medications and qualified success (QS) was success with glaucoma medications. The secondary outcome measures included IOP, the number of glaucoma medications, mean deviation (MD), best corrected visual acuity (BCVA), corneal endothelial cell density (ECD), and surgical complications.

Results: Sixty-eight eyes of 68 patients were analyzed. The median interval between initial TLE and SBR was 2 months. Overall success rate at three-year after SBR were 45.1% and 9.6% for QS and CS, respectively. A greater number of medications used before TLE was a contributing factor to failure (P = 0.02). 22 eyes (32.4%) underwent additional glaucoma surgery, and 41 eyes (60.3%) were spared from additional glaucoma surgery within 3 years after SBR. The median IOP decreased form 24.0 mmHg to 11.0 mmHg 3 years after SBR, and the number of medications decreased from 4 to 2 (P < 0.01). MD remained unchanged, but BCVA and ECD decreased at 3years postoperatively. There were no serious complications of SBR.

Conclusion: SBR may be an effective treatment option for early scarring blebs after TLE but is unsuccessful in eyes that have used many glaucoma medications prior to TLE.

Purpose: To clarify the clinical and pathologic findings of 7 patients with inflamed juvenile conjunctival nevus (IJCN) treated with tacrolimus.

Study design: Retrospective study.

Subjects and methods: The medical records of 7 male patients diagnosed with IJCN between February 2007 and October 2022 at the Kansai Medical University Hospital and Ideta Eye Hospital were retrospectively reviewed. The patients' mean age was 11.3 (8-20) years, and the average follow-up period was 18 months. The patients underwent anterior segment optical coherence tomography (AS-OCT) and anterior segment optical coherence tomography angiography (AS-OCTA). All the patients were treated with steroids or immunosuppressant eye drops, or both. Histopathologic examinations were performed on specimens resected from 2 patients.

Results: The clinical characteristics of IJCN were as follows: (1) presence of cysts within a pigmented conjunctival mass, (2) tumor accompanied by feeder vessels, and (3) predominantly found in boys with allergic diseases. AS-OCT and AS-OCTA revealed the presence of a cystic structure with poor vascular signals within it and numerous vessels distributed on the sclera underlying the lesion. Immunosuppressant eye drops relieved the congestion, diminished the inflow vessels, and induced shrinkage of the cysts in all the patients. Histopathologic examinations revealed infiltration of inflammatory cells such as lymphocytes and macrophages and low proliferative activity of melanocytes with no division pattern.

Conclusions: This study clarified the clinical and histologic characteristics of IJCN. Noninvasive AS-OCT and AS-OCTA might be useful for diagnosing IJCN. The histopathologic findings of this study indicate that immunosuppressive and antiallergic agents can effectively bring about disease remission.

Purpose: To investigate the incidence of microbial keratitis among Japanese patients wearing orthokeratology (ortho-k) lenses STUDY DESIGN: Retrospective multicenter study METHOD: This study was conducted at 4 hospitals in Japan and involved 1438 patients who had been prescribed ortho-k lenses and had worn them for at least 3 months. Data on patient demographics, lens characteristics, lens care systems, and presence of microbial keratitis were extracted from the medical records. Duration of ortho-k lens wear was calculated from the original fitting date to the patient's last visit, with the total years of lens wear used as person-years of lens wear. The incidence of microbial keratitis was calculated by dividing the number of infected cases by the total person-years of lens wear for all enrolled participants.

Results: Among the 1438 patients, 753 were male and 685 were female, with a mean age of 12.7 ± 5.4 years. The mean duration of ortho-k lens wear was 5.2 ± 4.5 years, and the mean lens power was -3.52 ± 1.41 D. The total person-years of lens wear for all enrolled patients was 7415. Four cases of microbial keratitis were identified, resulting in an overall incidence of microbial keratitis of 5.4 (95% CI: 1.0-9.8) per 10,000 patient-years among ortho-k lens wearers.

Conclusion: This study represents the largest sample size to date for estimating the incidence of microbial keratitis associated with ortho-k lenses. The incidence was similar to or slightly lower than that of previous studies on ortho-k-related microbial keratitis and also comparable to that of daily wear soft contact lenses.

Purpose: To evaluate the effects of trabeculectomy on the rate of deterioration of the central visual field (VF) in patients with normal-tension glaucoma (NTG), as revealed by refraction values.

Study design: Retrospective case series.

Methods: We retrospectively analyzed 28 eyes, including 12 high myopic (spherical equivalent [SE] < - 6 diopters without pathological myopia) and 16 non-high myopic (SE ≥ - 6 diopters) eyes. The rate of VF deterioration (dB/year) was determined using linear regression analysis of 30 -2 and 10 -2 VF tests. The Wilcoxon signed-rank test was used to compare deterioration rates between groups. To assess the influence of initial post-surgery effects, statistical analyses were conducted with and without data from the initial postoperative VF exam.

Results: Trabeculectomy significantly reduced intraocular pressure (IOP) in myopic (14.1 to 9.0 mmHg, P ≤ 0.01) and non-myopic (13.4 to 9.5 mmHg, P ≤ 0.01) eyes. Postoperatively, the 10-2 VF deterioration rate significantly decreased in myopic (- 1.31 to - 0.55 dB/year, P = 0.01) and non-myopic (- 0.80 to - 0.30 dB/year, P = 0.03) eyes. Excluding the first postoperative VF exam, the deterioration rates were - 0.51 ± 0.24 dB/year and - 0.54 ± 0.89 dB/year, respectively, indicating a minor impact on progression assessment.

Conclusions: Trabeculectomy may mitigate central VF deterioration in myopic NTG patients, emphasizing the potential benefits of timely surgical intervention. Further studies are needed to determine the optimal timing for surgery.

Purpose: To compare the clinical manifestations of and risk factors for choroidal detachment (CD) with or without hypotony after Ahmed valve implantation (AVI).

Study design: Retrospective, consecutive case series.

Methods: We enrolled patients with glaucoma who underwent AVI, and divided them into CD and non-CD groups. The patients with CD were divided into those with and without hypotony. Data collected from the chart review before and after AVI included patient demographics and ocular characteristics. We analyzed the risk factors for CD development. The relationship between hypotony and CD development was also analyzed.

Results: Among the 387 eyes, 63 developed CD. Among these 63 eyes, 42 had CD with hypotony and 21 had CD without hypotony. Multivariate regression analysis revealed that age (P < 0.001), lens status (P < 0.001), history of diabetes mellitus (DM) (P = 0.011), and history of hypertension (HTN) (P = 0.002) were significant predictors of CD development. Neovascular glaucoma (NVG) showed 42.9% of CD cases without hypotony. This rate was higher than primary open angle glaucoma (POAG) and exfoliative glaucoma (XFG). The rate of anterior chamber formation as treatment of CD was significantly higher in CD with hypotony than in CD without hypotony.

Conclusions: Older age, pseudophakic eyes, DM, and HTN are significantly associated with CD development after AVI. NVG has higher incidence rates of CD without hypotony compared with POAG and XFG. Therefore, clinicians should pay attention to CD development after AVI especially in NVG, even if a patient is not in a hypotonic state.

Purpose: To investigate the relationships among eye dimensions in magnetic resonance imaging (MRI) scans by sex, age, and strabismus type in Japanese patients with acquired strabismus and high myopia.

Study design: Retrospective clinical case series.

Methods: We included 58 eyes of 29 patients with acquired strabismus and high myopia (mean age ± standard deviation: 60.2 ± 14.7 years, axial length [AL]: 28.69 ± 2.12 mm). For all eyes, the equatorial diameter of the globe/AL ratio (EAR) and the globe/orbit volume ratio (GOR) were measured using MRI. EAR and GOR values were compared between the following groups: 9 men vs. 20 women; 8 younger (< 56 years) vs. 21 older (≥ 56 years) patients; and non-esotropia strabismus (NES: 7 patients) vs. esotropia (ET: 13 patients) vs. restrictive strabismus (RS: 9 patients) groups.

Results: Female patients had a smaller EAR (0.87 ± 0.07) and larger GOR (0.38 ± 0.04) than male patients (0.92 ± 0.05 and 0.35 ± 0.03, both P < 0.01). Older patients had a smaller EAR (0.87 ± 0.07) than younger ones (0.93 ± 0.04, P < 0.01), without significant differences in GOR. EAR (NES: 0.92 ± 0.06, ET: 0.86 ± 0.06, RS: 0.89 ± 0.09) significantly differed among the three strabismus groups (P = 0.02: post-hoc test: NES vs. ET, P = 0.02; NES vs. RS, P = 0.49; RS vs. ET, P = 0.67), but no significant differences in GOR were found (P = 0.12).

Conclusions: Among patients with acquired strabismus and high myopia, women, older patients, and those with esotropia exhibit a smaller EAR and longer sphere shape with AL as the major axis. The parameter EAR might be useful for evaluating the pathogenesis of strabismus associated with high myopia.

Purpose: Diabetic retinopathy leads to vision-threatening complications, such as proliferative diabetic retinopathy and tractional retinal detachment (TRD) and is a major global health concern. Despite advancements in vitrectomy techniques, challenges exist in managing postoperative complications and long-term visual acuity. This study aimed to evaluate postoperative outcomes of 27-gauge pars plana vitrectomy (27 g PPV) for diabetic TRD and identify associated risk factors.

Study design: Retrospective study.

Methods: This study included 94 eyes of 74 patients who underwent 27 g PPV for diabetic TRD between July 2017 and September 2022 at Juntendo University Urayasu Hospital, Japan. Patient demographics, preoperative characteristics, intraoperative details, and postoperative outcomes were examined. Statistical analyses were performed to identify factors influencing postoperative visual acuity.

Results: Mean follow-up duration was 23.1 ± 14.6 months. Postoperatively, visual acuity (LogMAR) improved significantly from 1.34 ± 0.82 to 0.65 ± 0.79 (P < 0.0001). Postoperative complications included persistent vitreous hemorrhage (15%) and neovascular glaucoma (4%). Final retinal reattachment rate was 97%. Preoperatively, macular detachment (P < 0.0001) and Grade IV TRD (P < 0.0001) severity were significantly associated with poor final best corrected visual acuity (P < 0.0001). Preoperative macular detachment (P < 0.0001), Grade IV TRD (P < 0.0001), intraoperative iatrogenic breaks (P = 0.031), and postoperative neovascular glaucoma (P < 0.0001) were identified as significant predictors of poor postoperative visual outcomes through multivariate analysis.

Conclusion: This study highlights the efficacy of 27 g PPV in improving visual acuity in patients with diabetic TRD. Despite favorable outcomes, attention to preoperative risk factors and meticulous surgical techniques remain crucial for optimizing long-term visual prognosis in these patients.

Purpose: To investigate the first-year real-world anatomical and functional outcomes of intravitreal brolucizumab injection in eyes with refractory neovascular age-related macular degeneration (nAMD).

Study design: Retrospective observational study.

Methods: nAMD patients who showed poor response to previous anti-vascular endothelial growth factor (VEGF) agents were switched to brolucizumab. Functional and anatomical outcomes were evaluated at initial treatment of nAMD, after treatment with other anti-VEGF agents and after switching and treating with brolucizumab for 1 year. Safety profile was also evaluated after brolucizumab injection. Best-corrected visual acuity (BCVA), central foveal thickness (CFT), subfoveal choroidal thickness (SFCT), and the presence of fluid in different compartments (intraretinal fluid [IRF], subretinal fluid [SRF], pigment epithelial detachment [PED]) were assessed at each time point.

Results: A total of 40 eyes of 40 patients were included in the study. BCVA remained unchanged throughout treatment (p > 0.05). CFT did not change after treatment with other anti-VEGF agents (p = 0.588) but decreased after switching to brolucizumab (p < 0.001). SFCT decreased after treatment with other anti-VEGF agents (p = 0.025) but not after switching to brolucizumab (p = 0.236). Presence of SRF (p = 0.001) and PED (p = 0.001) decreased significantly after switching to brolucizumab, despite their persistence with prior treatments using other anti-VEGF agents. However, IRF persisted even after switching to brolucizumab (p = 0.745). Intraocular inflammation (IOI)-related adverse events were reported in 3 eyes (7.14%).

Conclusion: Analysis of first-year real-world outcomes after switching to brolucizumab in nAMD patients refractory to other anti-VEGF agents showed improved anatomic outcomes, limited functional improvement and low incidence of IOI-related adverse events.

Purpose: This study aimed to investigate the choroidal thickness (ChT) distribution in adult myopic eyes, focusing on the macular, nasal midperiphery, and temporal midperiphery regions, and to explore its relationship with axial length (AL) and refractive error.

Study design: A cross-sectional, observational study.

Methods: Twenty-nine eyes of 29 adult volunteers were examined. ChT was measured using high-speed swept-source optical coherence tomography covering an area of 50 degrees in three different regions: centered at macular, nasal side at 33 degrees, and temporal side at 33 degrees. Statistical analyses were performed to assess differences in ChT between regions and correlations with AL and spherical equivalent (SE).

Results: ChT was found to be thickest in the macular region, followed by the nasal and temporal midperiphery regions. Significant correlations were observed between AL/SE and ChT in the macular and temporal regions, but not in the nasal region. The temporal midperiphery showed the strongest correlation with AL and SE.

Conclusion: This study revealed a nasal-temporal asymmetry in ChT distribution in myopic eyes, with the temporal midperiphery showing the thinnest ChT. The strong correlations between ChT in the temporal midperiphery and AL/SE suggest a role for the temporal choroid in axial elongation and myopia progression. These findings highlight the importance of considering peripheral ChT in understanding ocular growth and myopia management.