The chemical reaction of copper in the lens is one of the few ophthalmologic subjects which has not been overemphasized in the literature. Chalcosis lentis has been encountered frequently during the present war because of the employment of numerous alloys in armaments, some of which contain copper. The toxicity of copper within the globe is well known, and the production of a characteristic "sunflower" just below the anterior capsule of the lens has been regarded as one of the pathognomonic signs of chalcosis lentis.1 The presence of the "sunflower" is frequently difficult to determine, and certain methods of examination should be employed to bring out this outstanding characteristic. A "sunflower" has been reported by Thiel as occurring in cases of hepatolenticular degeneration, but this lesion has not the appearance or the color of that associated with chalcosis lentis.
Since the "sunflower" occurs in the region of the lens just
ROSEN E. CHALCOSIS LENTIS ASSOCIATED WITH TRAUMATIC LENTICONUS POSTERIOR. Arch Ophthalmol. 1944;32(1):63–65. doi:10.1001/archopht.1944.00890070081011