Keratoconus

Keratoconus is an eye condition that causes the naturally round surface of the cornea to weaken and bulge forward into a conical shape. The bulging of the cornea therefore affects the way the light hits the retina at the back of the eye, resulting in distorted vision.

Keratoconus is usually diagnosed as an isolated disorder but there have been instances where it has been reported in association with Down Syndrome, Leber's Congenital Amaurosis, and Mitral Valve Prolapse.

It is also believed that genetics, the environment and the endocrine system all play a role in keratoconus. For example, oxidative stress, allergies and eye rubbing are known to be risk factors of developing keratoconus.

• Avoid vigorous rubbing of your eyes
• Avoid allergens to decrease the risk of eye irritation

Without treatment, keratoconus can progressively lead to significant vision impairment and loss of quality of life. Keratoconus in very bad cases can cause blindness.

However, with many advanced eye treatments available today, some patients with keratoconus are able to continue with their everyday life as usual post-surgery.

The corneal deformity associated with keratoconus distorts vision, and impacts the patient’s quality of life. It is important to note that vision cannot be corrected with glasses.

• INTACS (Corneal Implants) are a small device that is implanted in the cornea to flatten the cornea and change the refraction of light passing through the cornea on its way to the retina.
• Corneal Collagen Cross-Linking (CXL) is an operation in which a combination of riboflavin (vitamin B2) and UV light is used to harden the cornea. This method is effective in stopping the progress of the disease and reduces the need for corneal transplantation.