正常人133只眼晶体图像的计算机分析

A real-time analysis of 133 normal lens images by a computer

根据晶体光学切面反光灰度值可以反映晶体密度变化的原理，我们自行设计了一套计算机晶体图像分析系统，使晶体密度的检查实现了数据化和客观化。利用该系统对正常人１３３只眼晶体光学切面进行图像分析发现：晶体前、后皮质以及核区灰度值随年龄增加而升高（Ｐ＜０．０１）；各年龄组晶体前、后皮质间灰度值明显高于核区（Ｐ＜０．０５），而前、后皮质间差异无显著性（Ｐ＞０．０５）；各年龄组男女性别间晶体各区域灰度值差异无显著性（Ｐ＞０．０５）。

According to the theory that the light scattering of the lens is correlated with the lens density,we designed a computerized system for the real-time analysis of the lens image. By measure-ment of the gray scale value of the lens optical section,the lens density is measured objectively and nu-merically.With the help of the system,133 normal lens images were investigated. From the analysis of various age groups,we found that the grey scale values of the anterior cortex, posterior cortex and nu-cleus increase with the increase of age (P<0.01),the grey scale values of the anterior and posterior cor-tex are significantly higher than the value of the nucleus (P<0.05), but there is no significant differ-ence between the values of the anterior and posterior cortex (P>0.05),and there is also no significant difference in the comparisons of the grey scale values of the respective corresponding lens areas between the male and female.