Ocular Diseases and Blindness in Elderly Thais

APICHART SINGALAVANUA,M.D.*, NGAMKAE RUANGVARAVATE,M.D.*, NATTAWUT WANUMKARNG,M.D.* ANKANA METHEETRAIRUT, M.D.*, RACHIT TUCHINDA, M.D.*,

Affiliation : *Department of Ophthalmology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.

AbstractThe prevalence of ocular disease and blindness in 2,092 Thai subjects, aged 60 years and over, in 33 communities in the vicinity of Siriraj Hospital, Bangkok was studied. The subjects were examined by a team which consisted of 3-4 ophthalmologists, 6 nurses and a trainee health officer. The history, visual acuity and ocular tension were recorded. The anterior and posterior segments of the eye were assessed by using a portable slit lamp biomicroscope, and a direct and indirect ophthalmoscope. The examination revealed disease of the lens in 1656 cases (79 .16% ), cornea 852 cases (40.72%), lid 516 cases (24.67%), conjunctiva 462 cases (22.08%), retina 300 cases (14.34%), glaucoma 128 cases (6.12%) and of the optic nerve in 39 cases (1.86%) respectively. There were 66 cases of blindness (3.15%) and 743 cases of low vision (35.5%). The causes of blindness were cataract, glaucoma, late age-related maculopathy, optic atrophy and corneal opacity.

Keywords : Prevalence, Blindness, Low Vision, Elderly, Glaucoma, Cataract, Age-Related Maculo- pathy

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