Eye lens tumors: an experimental-histological and theoretical approach.

The eye lens is the only tissue in the organism where to date no spontaneous tumors have been described. In pathologic (cataractous) lenses, however, several abnormal cell growths have been described. General tissue properties of these cell growths (morphology, proliferation, formation of cell masses, etc.) are in accordance with characteristics of benign tumors in other tissues, and can therefore be considered as benign lens tumors.