<prompt> Not true regarding arcus senilisDeposition of lipids in corneaSeen in corneal peripheryThere is clear margin between the limbus and the arcus depositionIt stas from superior cornea and then involves inferior cornea  <response>: Arcus senilis usually stas from inferior cornea and then involves superior cornea. Arcus senilis Corneal degeneration. Deposition of lipids in cornea. Seen in corneal periphery. There is clear margin between the limbus and the arcus deposition. It stas from inferior cornea and then involves superior cornea. Does not invade visual axis. 