Screening for Narrow Angles in the Singapore Population: Evaluation of New Noncontact Screening Methods
Purpose: To assess the screening effectiveness of 3 new noncontact devices, the scanning peripheral anterior chamber depth analyzer (SPAC) (Takagi, Nagano, Japan), which measures peripheral anterior chamber depth (ACD); IOLMaster (Carl Zeiss Meditec, Jena, Germany), which measures central ACD; and Visante anterior segment optical coherence tomography (AS-OCT) (Visante, Carl Zeiss Meditec, Dublin, CA), which images the angles, and to compare these instruments with gonioscopy in identifying people with narrow angles (NAs).Design: Cross-sectional, observational, community-based study.Participants: Phakic subjects aged ≥50 years without ophthalmic symptoms who were recruited from a community polyclinic in Singapore.Methods: All subjects underwent examination with ...
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