Keratoconus is a progressive eye disease that often appears during teens or early twenties. Keratoconus is characterized by the thinning and eventually bulging of the round cornea into a cone-like shape. This cone shape deflects light as it enters the eye on its way to the light-sensitive retina, causing distorted vision. Keratoconus can occur in one or both eyes. For more info visit ... https://ebsaar.com/services/keratoconus/