正常眼与近视眼多方位角膜厚度研究

Research on corneal thickness at multi-points in nor-mal and myopic eyes

对正常人３１只眼、近视眼２４６只眼进行角膜中心及其他２４个位点的测量。结果显示，正常人用膜中心厚度为５４１±４５．２９μｍ，近视眼为５４４±３５．０１μｍ。角膜厚度在眼别、性别、不同年龄组及不同屈光度之间差异无显著性；但随着年龄和近视屈光度的增加，角膜中心厚度逐渐变薄。角膜各方位厚度不同，正上方最厚，颞下方最薄，从中心到周边角膜厚度逐渐增加，但不同方位的厚度增加值不同，在ＲＫ手术时应予注意。

AbstractThe corneal thickness of the center and other 24points were measured in 31 normal eyes and 246 myopiceyes. The results show that the mean central corneal thickness of the normal eye is 541±45.29μm and thatof the myopic eye,544±35.01μm, There are no sig-nificant dinerences in thcentral corneal thickness incomparisons between the left and right eye, between thernale and female,among various age groups, and amongvarious degrees of refractive error. However,with theincrease of age and increase of myol1ic refractive error,the central corneal thickness gradually becomes thinner.There are differences in thickness among various direc-tions,the superior direction being the thickest and thetemporal inferior,the thinnest.From the center to thelimbus, the thickness of the cornea gradually increases,but the values of the increase of the thickness are vari-ous in various directions.that should be paid attentionto in radial keratotomy.