A common corneal condition a visual disturbing condition and not a visual threatening condition. The condition is usually bilateral more common in females than males with preponderance at puberty it is a type of a corneal degeneration of dystrophy characterised by non-inflammatory corneal ectasia we have base and apex of cornea the base of cone is termed as placoid cornea and apex as nipple cornea There are four cardinal signs of keratoconus which are as follows: Munson's sign that is distortion lower lid margin when the patient looks in downward gaze Folds and ruptures in descemet's membrane Visible or increased sensitivity of corneal nerves termed as Vogt stirea Fleisher’s sign which is brownish ring of hemosiderin at base of cone The complications of keratoconus can be: Glaucoma Hydrops Keratoglobus Some of the conditions associated with keratoconus are as follows: Ectopia lentis…