Cornea
The cornea is the transparent front part of the eye that covers the iris, pupil, and anterior chamber. The cornea, with the anterior chamber and lens, refracts light, with the cornea accounting for approximately two-thirds of the eye's total optical power. In humans, the refractive power of the cornea is approximately 43 dioptres. The cornea can be reshaped by surgical procedures such as LASIK. While the cornea contributes most of the eye's focusing power, its focus is fixed. The curvature of the lens, on the other hand, can be adjusted to "tune" the focus depending upon the object's distance.
Some disorders in cornea are:
- Keratoconus
- We offer Collagen Cross-linking with Riboflavin (C3R). It is a treatment which stops progressive weakening of the cornea which occurs in this particular disorder.
- During the treatment, Riboflavin eye drops are applied to the cornea, which is then activated by Ultraviolet A Light (370nm). This process has shown to increase the amount of collagen cross-linking in the cornea as well as strengthen the cornea.
- Pterygium
- A pterygium Is a fleshy growth which grows from conjunctiva and starts encroaching onto the cornea, These are commonly seen with increased sun exposure ,we perform pterygium removal surgeries and overlay the bare sclera with a graft to prevent recurrences. These grafts are held in place with a biological glue, sutures.
- Refractive Errors
- A normal person sees well because rays from the outside world fall exactly on the light sensitive retina, allowing them to see sharp and clear images. In people with Refractive Error (or poor vision, such as nearsightedness or farsightedness), the light rays do not get focused on to the retina, due to which, blurred images are formed.
- Common refractive errors such as myopia, hyperopia and astigmatism can be corrected by spectacles or contact lenses. However, those who want a life free from the limitations of spectacles and the hassles of contact lens handling, Refractive Surgery offers a permanent solution.
