A new model of test chart for accurate and simpler measurement of visual acuity is introduced. The test chart is composed of Landolt's rings, Arabic figures, and Korean letters following the International Standardization.
Arabs ; Humans ; Vision Tests* ; Visual Acuity

The accurate analysis of the individual ocular movement is imperative in the proper understanding of the physiology of the ocular murcles, and it providers the logical classification of strabismus. Present status of the investigation on the ocular motility does not permit complete understanding of entire strabismus, but it gives the practical basis for the assessment of the type of muscle surgery.
Classification ; Logic ; Physiology ; Strabismus

No abstract available.
Mandible* ; Osteoblastoma*

No abstract available.
Mandible* ; Osteoblastoma*

Author experienced 10 cases of keratitis which have been relatively good improved by subconjunctival injection of Tathion(50mg.), a glutathion preparation without any special complication. Previous case report for 5 cases of keratitis treated with Tathion was published by Rhee and Kim. (1972, June.)
Keratitis*

This is to report the figures of the second survey of causes of blindness on 94,799 eye patiens from various hospitals (total 17 in number) in Korea during 1971 and 1972. Blindness is defind as visual acuity for distance of 0.1 (20/200) or less in the better eye with best correction. Representation of diagnosis of ocular affection is based on examination of ophthalmologists, and the Standard Classification of Causes of Blindness recommended by the International Association for the Prevention of Blindness (revised) is applied. Estimated number of blindness is 1.763(1.9%). Proportion of blindness by causes indicates: Senile cataract (30.26%), Systemic diseases(15.02%), Other diseases (13.64%), Glaucoma(9.58%). Injury and poisoning(9.13%), Refractive errors (8.22%). Congenital diseases(5.64%), and Infectious diseases (5.14%), etc. Rate of blindness by site and type of affection is shown as: Lens disorders (cataract), (36.10%), Retinal diseases(13.18%), Optic nerve diseases(9.33%), Corneal diseases(8.70%), Refractive errors (8.16%), Glaucoma (7.87%), and Other diseases (6.24%), etc. Comparisons with other statistics on causes of blindness of the inland and the foreign countries are attempted. Evaluation of results and problems establishing a more detailed and nationwide survey in future are briefly discussed in comment. (This survey and report are supported by a Grant from the Research Institute of Medical Science of Korea, Inc.)
Academies and Institutes ; Blindness* ; Cataract ; Classification ; Communicable Diseases ; Diagnosis ; Financing, Organized ; Glaucoma ; Humans ; Korea* ; Optic Nerve ; Refractive Errors ; Retinaldehyde ; Visual Acuity