The Thai Journal of Ophthalmology
The Opthalmological Society of Thailand

Official Publication of the Royal College of Ophthalmologist and Ophthalmological Society of Thailand

Temporal Characteristics of Low Vision Students in the School for the Blind, Chiang Mai

Phagarnart Eiumtrakul M.D.,

Tada Martin M.D.,1

Prasert Leeungurasatien M.D.,1

Sisiaumpai jaimook,

Kanikar Cheeraprapoosuk,2

Samran Wangspa M.D.

ABSTRACT The 163 students of the Northern School for the Blind, under Patronage of the Queen, were examined during May 1996 to November 1996. Of these 116 were completely blind with no light perception in both eyes, 47 had some visual ability in one eye or both. Among 47, ocular malformations were the most common abnormality founded. Disorders of the lens were the second most frequent finding. Multiple defects were not uncommon. Best visual acuity range from 6/60 to counting finger. Secondary IOL implantation was the most frequent operative procedure performed. Optical correction and visual aids could improve the vision and quality of life of these students. Electroretinogram is a useful adjundt to the procrastination of visual prognosis.

Thai J Ophthalmol 1999 ; January-June 13(1) : 55-63