<prompt> Fleischer ring is characteristic ofMegalocorneaDiabetesChalcosisKeratoconus  <response>: D i.e. Keratoconus Corneal Pigmentation Condition Deposited Material Site Of Deposition Argyrosis Sliver nitrate AgNO3 Brown discolouration of descements membrane Fleischer ring Iron Epithelial iron deposits at the base of Keratoconus Chalcosis Kayser Fleischer ring Cu Grayish-green or golden brown discolouration of stroma of peripheral cornea Wilsons diseaseHepatolenticular degeneration Kayser Fleischer ring Cu Grayish-green or brown ring is seen just inside the limbus due to Cu deposition between Descemets membrane and endothelium Siderosis Fe hemosiderin - Green or brown discolouration of deeper layers of cornea. Blood staining can follow massive hyphaema either from contusion or surgery - Fleischers ring representing deposition of haemosiderin is found in keratoconus Q Hudson-Stahli line Elderly Brown horizontal line in inferior third or cornea Krukenbergs spindle Myopic men Veical spindle shaped brown uveal pigment deposition Topical epinephrine Used for glucoma Result in black cornea. 