In order to investigate the fundus fundings in myopic eyes and to clarify the correlation between the refractive error and the myopic fundus changes, 7968 eyes of school children with refractive error in Seoul were selected and the observation of ophthalmoscopic features of crescent of optic nerve, cup to disc(C/D) ratio and the spontaneous venous pulsation were attempted. The result of the study were summarized as follows: 1. The optic nerve crescent was counted in 2643 eyes(33.2%) among 7968 eyes and the temporal crescent was the most frequent localization(72.8%) in 2643 eyes. 2. The incidence of the optic nerve crescent was increased in proportion to the degree of myopia regardless of its localization type, however the incidence of the crescent was decreased at -7.0 D or higher myopes. 3. The mean horizontal C/D ratio was 0.24±0.14 and the C/D ratio of 0.4 or more were common in the myopia of 2.0 D or more. The correlation between the C/D ratio and the refractive error appeared statistically significant(p<0.05). 4. In most of eyes(98.6%), difference of the C/D ratio between right and left eye was 0.2 or less. 5. The spontaneous venous pulsation on the optic disc was observed in 594 of 7968 eyes(7.5%).
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