Comparison Of The Trabecular Meshwork Height Between Open And Closed Angles And Evaluating The Location Of The Scleral Spur In Korean Patients | 96972
Journal of Clinical & Experimental Ophthalmology
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Purpose of our study was to analyze the Trabecular Meshwork (TM) height of open and closed angle patients and attempt to
present a better way to define the exact location of the scleral spur with the Schwalbe???s line method in the Anterior Segment
Optical Coherence Tomography (AS-OCT). Our study measured the distance from the scleral spur to the Schwalbe???s line as
the TM height and compared it between open and closed angle patients, and with results from previous studies. The mean
TM height was then applied to locate the scleral spur with Schwalbe's line method. Of the patients who underwent AS-OCT
at the Yonsei University Health System between January 2015 and December 2017, 30 patients (60 eyes) with open angle and
30 patients (60 eyes) with closed angle were randomly enrolled. Mean (SD) TM height was 810 (104) ?m in the open angle
group and 580 (107) ?m in the closed angle group which was significantly different. (p<0.001) When the actual TM height was
compared using the Schwalbe's line method, the accuracy was significantly better with updated reference distance (open: 810
?m, closed: 580 ?m) than previously used 1000 ?m reference distance. (P<0.001) TM height was significantly different between
open and closed angle patients. As so, the reference distance for Schwalbe???s line method needs to be distinguished according
to open and closed angle when it is used for locating the scleral spur. Furthermore, TM height may be an important factor to
distinguish open and closed angle.
Wungrak Choi has completed his Graduation from Yonsei University College of Medicine and is pursuing Ophthalmology as a specialty in Seoul Korea.