What is the cornea?
The cornea is the front part of the eye wall, and it is a transparent, circular lens with a super-precise convexity, as it is the main organ responsible for refracting the visible rays to form the image on the retina and it is made of strong tissue.
Corneal diseases that require a corneal transplant
A cornea transplant is often used to restore vision to a person with a damaged cornea. A corneal transplant may relieve pain or restore vision in many corneal diseases, the most important of which are:
- A corneal opacities that cannot be removed by laser
- Severe keratoconus
- Corneal oedema due to weakness of the water repellent cells from the cornea
What are the types of corneal transplant?
- Penetrating corneal transplantation: In which all layers of the opaque cornea are replaced by another complete clear cornea.
- Lamellar corneal transplantation (partial): in which either the anterior or posterior layers are replaced only by their counterparts from other healthy clear corneas.
- Femto assisted corneal transplantation using the femtosecond laser: In which the femtosecond laser is used to cut the cornea that will be transplanted and the diseased cornea in an accurate and identical manner, which reduces the rate of astigmatism after the operation and speeds up the recovery period until recovery.