Relationship between Intraocular Pressure and Angle Configuration: An Anterior Segment OCT Study
Rachel S Chong, Lisandro M Sakata, Arun K Narayanaswamy, Sue-Wei Ho, Mingguang He, Mani Baskaran, Tien Yin Wong, Shamira A Perera, Tin Aung
Investigative Ophthalmology & Visual Science | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2013
PURPOSE: To assess the relationship between intraocular pressure (IOP) and anterior chamber angle (ACA) configuration as assessed by gonioscopy and anterior segment optical coherence tomography (AS-OCT). METHODS: A total of 2045 subjects aged 50 years and older, were recruited from a community clinic and underwent AS-OCT, Goldmann applanation tonometry, and gonioscopy. A quadrant was classified as closed on gonioscopy if the posterior trabecular meshwork could not be seen. A closed quadrant on AS-OCT was defined by the presence of any contact between the iris and angle wall anterior to the scleral spur. Customized software (Zhongshan Angle Assessment Program, Guangzhou, China) was used to me..View full abstract
Supported by grants from the Biomedical Research Council, Singapore, and the National Medical Research Council, Singapore.