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为了对树鼠进行试验性近视眼研究,特先对树鼠眼球及屈光的正常发育进行观察。试验分6组,每组鼠5只。分别于0、15、30、45、60及75天时麻醉下检查。至75天时所测数字均达正常值。睫状肌麻痹下检影,开始屈光为+25D,15天时迅速降低,逐渐稳定至+5D,眼球轴长近7.8mm。发育期中角膜曲率缓慢增加。前房深度较其它为早,在15～30天时发育完成。晶体厚度在整个发育期中稳步增加。玻璃体腔在15天前迅速增大,然后逐渐变慢,这是由于晶体厚度的增加比眼轴增长更快。总的来说眼球15天后发育趋于静止,此与
In order to study the experimental rat myopia, especially the first observation of the normal development of the mouse eyeball and refraction. The experiment was divided into 6 groups, 5 rats in each group. Respectively, at 0,15,30,45,60 and 75 days under anesthesia check. By 75 days the figures were normal. Ciliary muscle paralysis under the retinoscopy, refraction began to +25 D, 15 days decreased rapidly, gradually stabilized to +5 D, the axial length of the eye nearly 7.8 mm. Corneal curvature slowly increased during development. Anterior chamber depth than the other as early as 15 to 30 days when the development is completed. Crystal thickness increased steadily throughout the developmental period. The vitreous lumen increased rapidly 15 days ago and then gradually slowed down due to the increased crystal thickness faster than the ocular axis. In general, the development of the eye tends to be still after 15 days, this and