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Corneal Collagen Cross Linking

إقرأ عن عملية تثبيت القرنية باللغة العربية

Keratoconus patients develop progressive corneal bulging/protrusion due to an inherent weakness of the corneal collagen. Collagen basically consists of many adjacent fibrils. The stiffness and strength of collagen is in turn related to the number of links between adjacent fibrils. These cross-links increase spontaneously as we age.

In the last few years a way to medically strengthen the cornea by increasing the number of collagen cross-links has become available. The full name of the procedure is corneal collagen cross-linking with riboflavin, also called C3R or CXL for short. It is used to strengthen the cornea in people with keratoconus or corneal ectasia following complicated refractive surgerry. In doing so, corneal collagen cross-linking can stop keratoconus from worsening. It can also help flatten the central cornea in about 50% of patients, who often experience better vision as a result.

less cross linking, fibers of a weaker cornea are inter-connected by lesser bonds more cross linking, fibers of a stronger cornea are inter-connected by more bonds

CXL was iperformed in Cairo, Egypt very early after its inception. The procedure is relatively simple, highly effective and completely painless. It’s also very safe, and any complications are extremely unlikely. Dr Khalil is following up many patients with their stabilised corneas, for whom he has performed cross linking years ago, when CXL was just starting.


CXL procedure steps

cross linking with riboflavin

Before the procedure, you’ll be given a local anaesthetic, so you won’t feel any pain


Dr Khalil will carefully and painlessly remove the surface of your cornea, and riboflavin (Vitamin B2) drops will be applied to your eye for 30 minutes.


collagen cross linking of cornea

Then, a measured dosage of UV light is applied to your cornea for a further 30 minutes. Together with the riboflavin, the UV light encourages bonds between collagen fibrils to form, strengthening your cornea.


After the treatment, a contact lens will be placed on your eye to help with healing and make your eye more comfortable. You’ll need to keep this in place for a few days, and you’ll also be given eye drops to use. Any discomfort during healing is usually mild, and should only last the first few days.

Medicine is a science and art and above all a direct human relation between a patient and his doctor. All information in this site are intended to support not to replace the direct physician-patient relation.

Contact Dr Khalil Eye Clinic in Cairo

send email enquiries to:

info@eyecairo.net

Phone: 20 (2) 3760 6985

Address: Dr Ahmad Khalil Eye CLinic, Saridar Clinic Bldng, 92 Tahrir St, Dokki, Giza and 12311