Journal article

Determinants of the optic cup to disc ratio in an Asian population - The Singapore Malay Eye Study (SiMES)

Nishani Amerasinghe, Tien Y Wong, Wan-Ling Wong, Paul Mitchell, Sunny Y Shen, Seng-Chee Loon, Seang-Mei Saw, Paul J Foster, Tin Aung

ARCHIVES OF OPHTHALMOLOGY | AMER MEDICAL ASSOC | Published : 2008

Abstract

OBJECTIVE: To describe the distribution and determinants of the optic cup to disc ratio (CDR) in Malay adults in Singapore. METHODS: This population-based, age-stratified study examined 3280 Malay people aged 40 to 80 years in Singapore. Participants underwent a standardized interview and an ocular examination. A slitlamp examination measured the vertical dimensions of the disc and cup, excluding areas of peripapillary atrophy and the Elschnig scleral ring. RESULTS: Vertical CDR was recorded for 3228 right eyes and 3237 left eyes. The mean (SD) CDR was 0.40 (0.15) in both eyes. The CDR in the right eye increased with age (P < .001) and was greater in men vs women (age-adjusted CDR, 0.42 vs 0..

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