Retinal lesions in 116 patients with tuberous sclerosis included three types: the relatively flat, semitransparent, non-calcified tumors; the more commonly described nodular, calcified tumors; and a third lesion that possessed features of the other two. Other less definite pigmented and plaque-like lesions also were seen. The evolution of a relatively flat, noncalcified lesion into an elevated nodular, apparently calcified lesion during an interval of two decades was photographically recorded.