Clinical Survey of Blind Eye in Eye Pattents

ABSTRACT

Survey of causes of blindness on 23,249 eye patients who visited to department of Ophthalmology, Han Kang Sacret Heart Hospital, College of Medicine, Hallym University from Jan. 1982 to July 1986 were clinically evaluated. Blindness is defined as visual acuity for distance of 0.1(20/200) or less in the better eye with best correction. Standard Classification of Causes of Blindness recommended from the International Association for the Prevention of Blindness is applied. Estimated number of blindness is 882 persons(1057 blind eyes, 3.80%). For the evaluation of the site of blind eye, 175 persons(19.85%) were binocular and 707 persons(80.15%) were monocular, 375 persons(42.50%) were blind in the right and 332 persons(37.65%) in the left. Distribution of blindness causes by age group is; in male-under 10(3.41%), 11~20(6.06%), 21~30(12.78%), 31~40(10.32%), 41~50(8.42%), 51~60(6.72%), 61~70(5.78%), over 71(4.36%), and in female-under 10(1.80%), 11~20(1.90%), 21~30(4.45%), 31~40(2.65%), 41~50(3.88%), 51~60(5.49%), 61~70(10.13%), over 71(11.92%). Proportion of blindness by causes indicates; Injury and poisoning(31.60%), Senile cataract(28.11%), Infectious disease(9.28%), Others(5.78%), Glaucoma(5.50%), Systemic disease(4.78%), etc. Rate of blindness by site and type of affection is shown as; lens disease(cataract, 37.95%), Corneal disease(10.5%), Glaucoma(5.97%), Phthisis bulbi(5.87%), Anophthalmos(4.93%), Retinal detachment(4.17), etc. Evaluation of result and problems for better reliable survey in future are briefly discussion in comment.