Original articleLong-term Changes in Anterior Segment Characteristics of Eyes With Different Primary Angle-Closure Mechanisms
Section snippets
Subjects
We consecutively reviewed the medical records of patients with eyes having the entire spectrum of angle closure (including PACS/PAC/PACG) who initially visited the glaucoma clinic of Asan Medical Center, Seoul, South Korea, between January 1, 2008 and December 31, 2015, and met the inclusion criteria listed below. This retrospective, longitudinal, observational study was approved by the Institutional Review Board of Asan Medical Center and followed the tenets of the Declaration of Helsinki.
All
Results
One hundred sixty-eight eyes (from 88 participants) met the initial inclusion criteria. Among them, 16 eyes (9.5%) were excluded owing to undetectable or ambiguous SS, similar to a previous study.13 Among the 152 remaining eyes, 19 eyes were excluded owing to discrepancies between the 2 graders regarding the angle-closure mechanisms. For 10 eyes, 1 grader classified the mechanism as PB and the other grader as ELV. For 4 eyes, 1 grader classified the mechanism as PIC and the other grader as
Discussion
In our cohort of eyes with angle closure, PB was the most common mechanism of angle closure, accounting for about 35%, followed by TPIR (26%), PIC (23%), and ELV (17%). However, we should not overlook the possibility that multiple angle-closure mechanisms can simultaneously contribute to angle closure, as proven before.19, 20 According to our previous studies, in which we divided angle-closure eyes into 2 categories,2, 8, 16 the PB group had shallower ACD, higher LV, and relatively narrower
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