我們對仁愛國中學生作三年的眼屈光狀態追踪,並作分析統計。結果發現近視平均每年約加深-0.4至0.5D,眼軸長均有隨著年級而增長的現象,而角膜弧度隨年齡的變化並不大。而且近視加深快者,其本身的眼屈折狀態於偏向近視,也就是說近視的人度數比較容易加深。
Orientals have always displayed an inordinate predisposition toward myopia, the Chinese may be even more disposed toward myopia than the Japanese. Case-control studies are of greater validity than the cross-sectional variety, since they reduce the number of variables by extended periods of observation. We studied Jen-Ai junior middle school in Taipei, 184 boys and 272 girls, during two years periods. Myopic progression take the form of steady increases, more or less linear change in the refraction of -0.4 to -0.5 D/year. Also, those myopes of from -0.25 D to -3.0 D showed stabilization or little change, but those myopes of from -3.0 D to -6.0 D showed progression. The progression of myopia is associated with an increase in the axial length of the eye.