» » Keratoconus - Causes - Signs - Symptoms - Diagnosis - Treatment - FAQs


Rating : 12345
Rate This Article : 1 2 3 4 5
G J 4
A -A +


Keratoconus is a progressive eye disease of the cornea. The normally prolate cornea gradually starts bulging at a point. Normally light passes through the cornea undistorted forming a clear image on the retina. In patients with Keratoconus the light passing through the bulging cornea produces a distorted image.

These patients usually present to the doctor in their teens with gradually progressing diminution of vision. Their spectacle prescription changes frequently. When it progresses further the patient is unable to see clearly even with glasses.


Keratoconus is a bilateral condition affecting both the eyes. Usually one eye is more severely affected than the other. Both males and females are equally affected. Keratoconus typically commences at puberty and progresses up to the third decade. After which progression of disease slows or stops.

Quiz on Eye Anatomy of the Eye Health Animation

The exact reason for the disease is not known. There are many theories like excessive eye rubbing and genetic predisposition to deficient collagen cross linking making the cornea weak. There is no scientific evidence to support this.


Diagnosis is made by an ophthalmologist by examination with a slit lamp, video keratography or a topography. There are many treatment modalities now available to improve vision in these cases as well as to halt the progression. Rigid gas permeable contact lenses are special lenses which help improve vision in patients of Keratoconus. The newer modalities of improving vision are the intacs and phakic IOL. Procedures like C3R are done to strengthen the cornea and halt the progression of disease.

Post your Comments

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
User Avatar
* Your comment can be maximum of 2500 characters
Notify me when reply is posted I agree to the terms and conditions

Ask an Expert

If you have a question about health related issues, you can now post it in our Ask An Expert section on our community website and get answers from our panel of experts.

You May Also Like

View All

Show More Related Topics y