<prompt> Kayer fleischer ring affects:ConjunctivaEpithelium layerBowmans layerDescemets membrane  <response>: Ans. d Descemets membraneRef: A.K. Khurana 6th ed. 434 Chalcosis: refers to the specific changes produced by accumulation of copper in the eye. Clinical feature: Kayser-fleischer ring: It is a golden brown ring which occurs due to deposition of copper in the peripheral parts of the Descemets membrane of the cornea. Sunflower cataract: produced by deposition of copper on the posterior capsule of the lens. Retina: It may show deposition of golden plaques at the posterior pole which reflect the light with a metallic sheen. 