The cornea is the clear tissue at the front of your eye that lets in light so you can see. It has six layers:
Common reasons for cornea transplant
- Disease or injury can make the cornea cloudy or distorted, causing vision loss
- Cornea becomes scarred after infections such as corneal ulcer
- Keratoconus in young people
- Age or inherited conditions may lead to cloudiness of the cornea in older people
- Scarring caused by herpes, the cold sore virus
Functions of the cornea
- with the sclera or white of your eye, it protects your eyes from dirt, germs, and other particles
- filters and screens out some of the sun’s damaging ultraviolet (UV) waves
- contributes between 65-75 percent of your eye's focusing power
Facts about the cornea
- Corneal transplants are successful sight-saving operations, with 93% of transplants functioning after one year. By five years, 74% of transplants are still functioning and many will continue for many more years after that.
- The first successful corneal transplant was carried out in Olomouc, Moravia, (Czech Republic) on 7 December 1905.
- The sooner the eyes are retrieved the better the transplant outcome. But, your corneas can be donated up to 24 hours after you die.
How to donate your cornea