Keratoconus is a progressive disorder of unknown cause that typically starts during adolescence. It is usually an inherited corneal disorder which means that approximately 50% of family members may have it. Normal pressure within the eye causes the cornea to bulge forward into an irregular cone shape.
A new non-surgical, non-invasive treatment, based on collagen cross-linking with Ultraviolet A (UVA, 365nm) and riboflavin (Vitamin B 2), a photosensitizing agent is now available. This changes the intrinsic biomechanical properties of the cornea, increasing its mechanical strength. This increase in corneal strength has shown to arrest the progression of keratoconus.
The treatment is performed in operation theatre under completely sterile conditions. Usually, one eye is treated in one sitting. The treatment is performed using anesthetic eye drops. The surface of the eye (cornea) is treated with application of Riboflavin eye drops for 30 minutes. The eye is then exposed to UVA light for 30 minutes. Hence, the treatment takes about an hour per eye. After the treatment, antibiotic eye drops are applied; a bandage contact lens may be applied, which will be removed during the follow-up visit.
However one needs to understand that Collagen cross-linking treatment is not a cure for keratoconus, rather, it aims to slow the progression of the condition. However, following the cross-linking treatment, it makes the patient more comfortable to wear contact lens. The main aim of this treatment is to arrest progression of keratoconus, and thereby prevent further deterioration in vision and the need for corneal transplantation.
Onkar H. Pirdankar M.Optom, M.S. (Vision Science) Mr. Onkar Pirdankar is associated with Isha Netralaya as Consultant Low Vision Care. He completed his post graduation with majoring in Low Vision in 2010 from Lotus
Dr. Aditi Nair MBBS, DNB(ophthal), FRCS(Glasgow), FAEH(Glaucoma) Dr. Aditi Nair is a MBBS from Maharashtra University of Health Sciences (MUHS,Nashik). She then completed her DNB in Ophthalmology and subsequently
Dr. Lomesh Patil MS, DNB, FICO, FCRS Dr. Lomesh Patil graduated from Pravara Medical College, Loni, Maharashtra. He completed his M.S ophthalmology from government medical college, Dibrugarh, Assam. He did his
Dr. Amit .S. Nene MBBS, MS, DNB, FICO, FVRS Dr. Amit Shriram Nene completed his basic medical education (MBBS) from Pravara Institute of medical science , Loni with a gold medal and post graduate training (MS) from
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