Images of Memorable Cases: Case 9 This 32-year-old patient complained of longstanding difficulty speaking. He also had a tremor. 9. Kayser-Fleischer ring Copper deposition in Descemet’s membrane of the cornea. These rings can be either dark brown, golden, or reddish-green, are 1 to 3 mm wide, and appear at the corneal limbus. With rare exceptions, they are diagnostic of inherited hepatolenticular degeneration—Wilson’s disease.