测算了胎龄 4～ 8个月的 38只胎儿角膜的角膜横径、中央厚度、前、后曲率半径、前表面积及前屈折力。结果表明角膜横径、前、后曲率半径均随胎龄增长而增加 ,呈正相关 ,角膜前表面屈折力则随胎龄增加而趋于变小 ,其每月减少的幅度呈递减态势。将固定后角膜用显微镜测微尺测量顶点厚度 ,并将其与固定前作同体比较 ,发现胎儿角膜 6个月以后就比成人厚 ,随胎龄增长而增厚。并求得直线回归方程为 y∧ =0 .7733x +0 .0 189。对角膜厚的原因进行了讨论。本文结果进一步充实了国人胎儿角膜的基础数据库 ,并为角膜移植材料的选择提供了参考依据。 Corneal diameter, central thickness, anterior and posterior radius of curvature, anterior surface area and anterior refractive power of 38 fetuses with gestational age 4-8 months were measured. The results showed that the corneal diameter, anterior and posterior radius of curvature both increased with the increase of gestational age, which was positively correlated with the inflection of the anterior corneal surface, which tended to decrease with the increase of gestational age. The cornea was fixed with a microscopic micrometer scale to measure the apex thickness, and compared with the pre-fixed for the same body and found that the fetal cornea after 6 months thicker than adults, with the growth of fetal growth and thickening. The linear regression equation is obtained as y ∧ = 0 .7733x +0 .0 189. The reasons for corneal thickening are discussed. The results further enrich the basic database of Chinese fetal cornea, and provide a reference for the choice of corneal graft material.