Algorithm for predicting axial displacement of the optic part of IOL after phacoemulsification

Kulikov, Alexey N.; Danilenko, E. V.; Dzilikhov, A.A.

doi:10.17116/oftalma202013602138

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…The cross-sectional image compiling multiple interference patterns from light reflected on the intraocular layers can better display the anterior segment image. 14 It can also be used to identify the slope and deflection of the IOL optical region relative to the pupil plane 15 and the sizing of the implantable collamer lens, indicating its accuracy and convenience. 16 Besides slit-lamp examination, anterior segment OCT can help differentiate the substance lying between the IOL and posterior capsule more clearly, compared with ultrasound biomicroscopy.…”

Section: Discussionmentioning

confidence: 99%

Late capsular blockage syndrome: Clinical and anterior segment optical coherence tomography characteristics

Yang

Kao

Tsai

et al. 2022

Journal of the Chinese Medical Association

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Background: Late capsular blockage syndrome (CBS) is a rare phenomenon which is found after cataract surgery. The mechanism, anterior segment optical coherence tomography (OCT) presentation, and clinical characteristics are not well studied. Methods: We studied patients who developed late CBS in Taipei Veterans General Hospital from 2012 to 2019. Age, sex, systemic disease, ocular disease, interval between cataract surgery and CBS, axial length, type of intraocular lens implanted, grading of posterior capsular opacity, refraction, visual acuity, and anterior segment OCT findings were documented. Patients are categorized into two groups according to anterior segment OCT findings. All patients underwent Nd:YAG laser capsulotomy and were prescribed a low-dose topical steroid for 7 days. Postcapsulotomy refraction and visual acuity were recorded. All the clinical data were compared in the two groups. Results: This study included 18 eyes with late CBS. Patients’ median age was 80 (range, 54–92) years. The mean duration between cataract surgery and CBS diagnosis was 80.28 (range 15–136) months. According to anterior segment OCT findings, we subcategorized the patients into two groups: gravel appearance (n = 7) and milky (n = 11) appearance. After laser capsulotomy, mean visual acuity improved 0.18 ± 0.10 on the LogMAR. A significant myopic shift in refraction after laser capsulotomy was noted in the gravel appearance group compared to the milky appearance group (p = 0.027). No patient developed complications or needed further treatment for CBS during the median follow-up of 14.5 months (range 1–84 months). Conclusion: High-resolution anterior segment OCT is useful for analyzing patients with late CBS. Our study implies that the two types of CBS presentation indicate different causes of late CBS formation, as well as distinct clinical presentation and postlaser capsulotomy refractive outcome. In addition, YAG laser capsulotomy is a safe late CBS treatment modality.

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Section: Discussionmentioning

confidence: 99%

Late capsular blockage syndrome: Clinical and anterior segment optical coherence tomography characteristics

Yang

Kao

Tsai

et al. 2022

Journal of the Chinese Medical Association

View full text Add to dashboard Cite

show abstract

“…The cross-sectional image compiling multiple interference patterns from light re ected on the intraocular layers can better display the anterior segment image. (10) It can also be used to identify the slope and de ection of the intraocular lens optical region relative to the pupil plane (11) and sizing of the implantable collamer lens, indicating its accuracy and convenience. (12) Besides slit lamp examination, anterior segment OCT can help differentiate the substance lying between the intraocular lens and posterior capsule more clearly, compared with ultrasound biomicroscopy.…”

Section: Discussionmentioning

confidence: 99%

Capsular Blockage Syndrome: Clinical and Anterior Segment Optical Coherence Tomography (OCT) Characteristics

Yang

Kao

Tsai

et al. 2021

Preprint

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Background:CBS is a rare phenomenon which is found during and after cataract surgery. The mechanism, OCT presentation and clinical characteristics are not well studied. Methods:Document patients with CBS who underwent examination, including refraction, best-corrected visual acuity, slit lamp, anterior segment OCT, and onset after cataract surgery. All patients underwent Nd:YAG laser capsulotomy and were prescribed a low-dose topical steroid for seven days. Post-capsulotomy refraction and visual acuity were recorded.Results:This study included 18 eyes. Patients’ mean age was 80 (range, 54–92). The duration between cataract surgery and CBS diagnosis ranged 15–136 months. According to anterior segment OCT findings, we subcategorized the patients into four types: minimally opaque (n=4, 22%), uniformly turbid (n=7, 39%), focally condensed (n=5, 28%), and diffused sparkling (n=2, 11%). After laser capsulotomy, mean visual acuity improved 0.18 ± 0.09 on the LogMar. A significant difference in absolute refraction changes between the groups was noted— maximum in the focally condensed and minimum in the uniformly turbid types. No patient developed complications or needed further treatment for CBS during mean follow-up of 80 months.Conclusion:High-resolution anterior segment OCT is useful for analyzing pathological changes in the CBS. Our study implies that these four types of CBS presentation indicate various causes of late-CBS formation, as well as distinct clinical presentation and post–laser capsulotomy outcome. In addition, YAG laser capsulotomy is a safe late-CBS treatment modality.

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Analysis of intraocular lens displacement relative to the haptic plane by ultrasound biomicroscopy data

Danilenko¹,

Куликов²,

Makarova³

2023

Vestn. oftal'mol.

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Algorithm for predicting axial displacement of the optic part of IOL after phacoemulsification

Cited by 3 publications

References 12 publications

Late capsular blockage syndrome: Clinical and anterior segment optical coherence tomography characteristics

Late capsular blockage syndrome: Clinical and anterior segment optical coherence tomography characteristics

Capsular Blockage Syndrome: Clinical and Anterior Segment Optical Coherence Tomography (OCT) Characteristics

Analysis of intraocular lens displacement relative to the haptic plane by ultrasound biomicroscopy data

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