Fagerholm P, Philipson B T, Lydahl E
Department of Ophthalmology, Karolinska Hospital, Stockholm, Sweden.
Ophthalmic Res. 1990;22 Suppl 1:51-5. doi: 10.1159/000267065.
Zones of discontinuity parallel to the lens surface can be seen in the normal lens on slitlamp examination. These zones have been suggested to be surfaces at which the refractive index changes from one value to another. Normal lenses from tumor eyes have been examined by quantitative microradiography. The protein concentrations has been determined in thin sections from the anterior cortex. These measurements revealed jumps in the protein concentration at the same location as the zones of discontinuity. The magnitude of these jumps corresponds to changes of the refractive index that can explain the increased scatter of light in the zones of discontinuity.
在裂隙灯检查中,正常晶状体可观察到与晶状体表面平行的不连续区域。有人提出这些区域是折射率从一个值变化到另一个值的表面。已通过定量显微放射摄影术检查了来自患肿瘤眼睛的正常晶状体。已测定了前皮质薄切片中的蛋白质浓度。这些测量结果显示,蛋白质浓度在与不连续区域相同的位置出现跃升。这些跃升的幅度与折射率的变化相对应,这可以解释不连续区域中光散射的增加。