is a progressive disease of the outer transparent layer of the eye ball called the cornea affecting children and young adults. It is characterized by progressive weakening and thinning of the normally round cornea causing it to bulge forward and assume a cone like shape .This corneal steepening and irregularity results in the formation of distorted image of objects on the retina & gives rise to blurred vision. It generally affects both eyes but can also occur only in one eye. What are the symptoms & signs of keratoconus?is detected usually on routine eye examination by the eye doctor.frequent change of glasses, presence of high cylindrical power (astigmatism) and also have increased habit of eye rubbing. In advanced stage ofglasses do not help the patient to see clearly and they have to switch to using hard or semi-soft contact lenses to see clearly.can diagnose early stage ofafter a…