Biometric indicators of eyes with occult lens subluxation inducing secondary acute angle closure.

BMC Ophthalmol

Tianjin Medical University Eye Hospital, Tianjin Medical University Optometry College, Tianjin Medical University Eye Institute, 251 Fukang Road, Nankai District, Tianjin, 300384, China.

Published: March 2020

Background: To compare the anterior biometrics in eyes with secondary acute angle closure induced by occult lens subluxation (ASAC-LS), misdiagnosed as acute primary angle closure (APAC) at the first visit with APAC, chronic primary angle closure glaucoma (CPACG), and cataract.

Methods: This retrospective case study included 17 eyes with angel closure due to occult LS, who were misdiagnosed as APAC on their first visit, 56 APAC eyes, 54 CPACG eyes, and 56 cataract eyes. Axial length (AL), central corneal thickness (CCT), anterior chamber depth (ACD), aqueous depth (AD) and lens thickness (LT) were recorded. Lens position (LP), relative lens position (RLP), corrected lens position (CLP) were calculated. Quantitative data were subject to one-way analysis of variance and correlation analysis. Categorical data were analyzed using the chi-squared test. Receiver operating characteristic (ROC) curves were plotted to obtain a suitable cutoff value of ocular biometrics.

Results: The ASAC-LS patients had a longer ocular axial length than APAC and CPACG patients. Central corneal thickness of the ASAC-LS patients was not significantly different from APAC patients, but was significantly different from CPACG and cataract patients. The APAC patients had the smallest ACD, while the ASAC-LS patients had the smallest AD. The ASAC-LS patients had the largest lens thickness. According to ROC curve analysis, RLP, ACD, AD, CLP, LP had high power of discrimination.

Conclusions: This study revealed that LS secondary PAC patients had a shallower AD, thicker CCT comparing to those of APAC, CPACG and cataract patients. For patients with acute angle-closure glaucoma, it is necessary to exclude lens zonula relaxation.

Trial Registration: NCT03752710, retrospectively registered.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7059282PMC
http://dx.doi.org/10.1186/s12886-020-01355-7DOI Listing

Publication Analysis

Top Keywords

angle closure
16
asac-ls patients
16
lens position
12
patients
11
lens
8
occult lens
8
lens subluxation
8
secondary acute
8
acute angle
8
primary angle
8

Similar Publications

Background: To assess associations between mortality and major ocular parameters and diseases.

Methods: The population-based Ural Eye and Medical Study (UEMS) and Ural Very Old Study (UVOS) included 5899 individuals (age: 40+ years) and 1526 individuals (age: 85+ years), respectively. Cause-specific mortality was determined using the government regional information and analytical system.

View Article and Find Full Text PDF

Purpose: This study evaluates the effectiveness of the inverted internal limiting membrane (ILM) flap technique during vitrectomy for treating macular hole-induced retinal detachment (MHRD) in high myopia patients, a challenging complication for vitreoretinal surgeons due to its treatment complexity.

Methods: We conducted a prospective study analyzing 92 eyes diagnosed with MHRD, all undergoing vitrectomy using the inverted ILM flap technique between February 2022 and September 2024. Successful surgery was defined as achieving retinal reattachment, macular hole closure, and improvement in visual acuity by the 12-month postoperative follow-up.

View Article and Find Full Text PDF

Purpose: To evaluate changes in intraocular pressure (IOP) in dominant and contralateral eyes following the dark room prone provocative test (DRPPT) in the study subjects with shallow anterior chamber.

Methods: This was a prospective, single-center, non-randomized controlled trial of 43 subjects (86 eyes) with shallow anterior chamber. The dominant eye was identified using the card-hole method.

View Article and Find Full Text PDF

Purpose: To develop an artificial intelligence algorithm to automatically identify the anterior segment structures and assess multiple parameters of primary angle closure disease (PACD) in ultrasound biomicroscopy (UBM) images.

Design: Development and validation of an artificial intelligence algorithm for UBM images.

Methods: 2339 UBM images from 592 subjects were collected for algorithm development.

View Article and Find Full Text PDF

Objective: To report clinical outcomes of skeletally immature dogs with antebrachial deformities secondary to premature closure of the distal radial physis (PCDRP) treated with angular corrections and distraction osteogenesis using circular external skeletal fixation (CESF).

Study Design: Retrospective multi-institutional case series.

Animals: A total of 12 client-owned dogs with premature distal radial physeal closure.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!