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PURPOSE To estimate and compare the change in iris cross-sectional area (IA) and iris volume (IV) following physiologic and pharmacologic pupil dilation in primary angle closure suspects (PACS) and normal subjects. METHODS Anterior segment-optical coherence tomography (AS-OCT) measurements in light, dark, and following pharmacologic dilation were obtained(More)
PURPOSE We estimate and compare change in iris cross-sectional area (IA) after physiologic and pharmacologic mydriasis in subjects with different dominant mechanisms for primary angle closure. METHODS Anterior segment optical coherence tomography (AS-OCT) measurements in light, dark, and following pharmacologic dilation were obtained on primary angle(More)
PURPOSE To compare the efficacy and safety of laser peripheral iridotomy with or without laser peripheral iridoplasty in the treatment of eyes with synechial primary angle-closure or primary angle-closure glaucoma. DESIGN Randomized, controlled clinical trial. METHODS Consecutive patients older than 40 years with synechial primary angle-closure or(More)
PURPOSE To assess the intraobserver and interobserver variability of new software for the analysis of anterior chamber-angle images obtained using ultrasound biomicroscopy (UBM). PATIENTS AND METHODS Consecutive UBM images of 4 quadrants (the superior, the nasal, the temporal, and the inferior) of 30 primary angle-closure suspects (PACSs) and 30 normal(More)
PURPOSE The purpose of the present study was to describe the baseline refractive and nearwork-induced transient myopia (NITM) characteristics of the Beijing Myopia Progression Study, a 3-year cohort study, that has three overall specific aims: to investigate the natural history of NITM in schoolchildren living in the inner city of Beijing aged between 7 and(More)
PURPOSE We studied the association between dynamic iris changes and the spectrum of primary angle closure disease (PACD), using the anterior segment optical coherence tomography (ASOCT). METHODS Eligible primary angle closure (PAC), primary angle closure glaucoma (PACG), age, and sex comparable primary angle closure suspects (PACS) and normal subjects(More)
OBJECTIVE To evaluate the van Herick test, anterior segment optical coherence tomography (AS-OCT), Pentacam and scanning peripheral anterior chamber depth analyzer (SPAC) for detecting primary angle-closure suspect (PACS) in a rural Chinese population. METHODS Eligible subjects aged ≥40 years were examined at the 5-year follow-up of the Handan Eye Study.(More)
PURPOSE To study the association of intraoperative intraocular pressure (IOP) at the conclusion of primary trabeculectomy with postoperative IOP on days 1, 7, and 30 and report the ability of intraoperative IOP to predict early postoperative IOP. PATIENTS AND METHODS Prospective, observational, case series. Ninety-seven consecutive patients with primary(More)
PURPOSE (1) To investigate the reference value of peak-trough difference in circadian rhythm of intraocular pressure (IOP) in habitual position and (2) to compare the IOP parameters among 3 age groups. MATERIALS AND METHODS Habitual IOP of healthy subjects sampled from the population in the Handan Eye Study was measured every 2 hours in the seated(More)
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