Cornea
Karthik Netralaya offers comprehensive corneal services by a team of dedicated consultants. The cornea is the outermost part of eye. This clear, transparent membrane covers other eye anatomy including the iris and pupil. The cornea functions as a protector for other eye components and also provides the eye most of its optical power.
C3-R (Corneal Collagen Cross-linking with Riboflavin)
Corneal collagen crosslinking with riboflavin (C3-R) is the only non-surgical treatment that is proven to prevent the progression of keratoconus, and it may even be able to reverse the condition to some extent.
C3-R (Corneal Collagen Cross-linking with Riboflavin)
Corneal collagen crosslinking with riboflavin (C3-R) is the only non-surgical treatment that is proven to prevent the progression of keratoconus, and it may even be able to reverse the condition to some extent.
What is keratoconus?
Keratoconus is a progressive condition affecting the cornea of the eye. The cornea is the clear window at the front of the eye. It is a curved structure. The precise shape of the curve allows it to act as a lens, projecting an image into the eye. The cornea is made up of bundles of protein called ‘collagen’. These bundles are normally held tightly together by chemical links between the collagen strands. This ensures that the shape of the cornea is constant. The problem with the keratoconic cornea is that the normal chemical links between collagen strands are deficient, causing the cornea to be unusually elastic. The pressure inside the eye then pushes the cornea into a distorted, conical shape. This spoils the quality of the image projected into the eye, and the vision becomes progressively blurred.
Keratoconus is a progressive condition affecting the cornea of the eye. The cornea is the clear window at the front of the eye. It is a curved structure. The precise shape of the curve allows it to act as a lens, projecting an image into the eye. The cornea is made up of bundles of protein called ‘collagen’. These bundles are normally held tightly together by chemical links between the collagen strands. This ensures that the shape of the cornea is constant. The problem with the keratoconic cornea is that the normal chemical links between collagen strands are deficient, causing the cornea to be unusually elastic. The pressure inside the eye then pushes the cornea into a distorted, conical shape. This spoils the quality of the image projected into the eye, and the vision becomes progressively blurred.
What is Collagen Cross-Linking?
Collaged cross-linking is a new treatment for keratoconus which uses a photosensitizing agent, riboflavin (Vitamin B2) & ultraviolet light (UVA, 365 nm) exposure. Ultraviolet light is used to promote increased cross-linking between collagen fibres within the cornea.
Collaged cross-linking is a new treatment for keratoconus which uses a photosensitizing agent, riboflavin (Vitamin B2) & ultraviolet light (UVA, 365 nm) exposure. Ultraviolet light is used to promote increased cross-linking between collagen fibres within the cornea.
How is the treatment done?
The treatment is performed under
topical anesthesia. The skin (epithelium) of the surface of the cornea is partially scratched, followed by application of Riboflavin eye drops for 30 minutes. The eye is then exposed to UVA light for 30 minutes. After the treatment, antibiotic ointment is applied and an eye-pad is worn overnight until the next day when the surface of the eye has healed. Oral analgesics are required for the first 1-2 days.
The treatment is performed under
topical anesthesia. The skin (epithelium) of the surface of the cornea is partially scratched, followed by application of Riboflavin eye drops for 30 minutes. The eye is then exposed to UVA light for 30 minutes. After the treatment, antibiotic ointment is applied and an eye-pad is worn overnight until the next day when the surface of the eye has healed. Oral analgesics are required for the first 1-2 days.
Who is suitable for C3-R?
Anyone with progressive keratoconus is potentially suitable. Patients with very advanced keratoconus or whose vision is already spoiled by scarring will usually not be good candidates for the procedure.
When can I wear contact lenses again?
You may return to wearing lenses after one month. Your lenses may need to be changed if your cornea changes shape.
Our Facilities:
Anyone with progressive keratoconus is potentially suitable. Patients with very advanced keratoconus or whose vision is already spoiled by scarring will usually not be good candidates for the procedure.
When can I wear contact lenses again?
You may return to wearing lenses after one month. Your lenses may need to be changed if your cornea changes shape.
Our Facilities:
- Corneal topography Tomey IV Topographer
- Spectral domain Corneal OCT
- Computerized Contact Lens module for Keratoconus contact lens fitting Low visual aids to enhance vision in those with uncorrectable vision
- Deep lamellar & endothelial (DALK & DSAEK) cornea penetrating keratoplasty
- ‘Automated Corneal Shaper’ (ACS) for lamellar corneal grafting surgeries
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