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洪淳珏,李莊宇,蘇經燮,崔斗植,韓景植,尹明照 現代醫學社 1968 現代醫學 Vol.9 No.2
This study was planned to determine the refraction under. 2% cyclogyl in 612, Korean children ;292 boys and 324 girls) of primary school age from 7 to 12 years. Brightness (illumination) of 9 class rooms among 12 of primary school was measured respectively xith Sight meter (Western model 703-60, type 7, Weston co,) and Sun light illumination meter estern model 756, Weston co.). 1. Among 612 children, refractive error was 75.085o and emmetropia 24.92%. 2. As to the distribution of refractive errores 68.25o were hyperopia and 31.74% myopia. Hyperopia was 41.64% and myopia 19.8%. As to the astigmatism, simple hyperopic was 5,25%, simple myopic 1.95%, compound hyperopic 3.98%, compound my PO-pie 1.13% and 1. miixed astigmation 0.16% 3. Hyperopic refractive error increased until 7 years of age and thereafter it decreased at a rate of change of 0.46D yearly. Myopic refractive errors increased at rate of 0.46D yearly after 8 yrs of age. 4. The refractive errors were more frequent in females (40.83%; 503 eyes) than males Y (34.25%; 422 ' eyes) . 5. Greatest mumber of children have refractive error at 8 years old. 6. Emmetropia was most frequent at 11 years of age and thereafter tends to decrease. ;Hyperopic refractive errer under 1.00D was 60.22% and myopic refractive error under OOD26. 92%-k