HUMAN TRAUMATIC CATARACT

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Abstract
Six cases representing different stages of cataract formation secondary to eye trauma were subjected to quantitative microradiographic or EM examination. Anterior and posterior subcapsular cataracts contained extensively swollen lens fibers in the subcapsular cortex. Microradiographic measurements revealed a reduced concentration of dry mass in the subcapsular cortex around the whole circumference of the lens. The inner cortex and the nucleus appeared normal by microradiography and EM. Two of the examined cases had an opaque-cataract membrane and 1 had a Soemmerring''s ring. The opaque membranes consisted of irregular masses of degenerated lens fiber material and regenerated lens epithelial cells. A wide range of dry mass concentration was found in the opaque membrane that was studied microradiographically. Alterations in morphology and dry mass concentration are more than sufficient to explain the development of opacification in traumatic cataract.

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