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Tuesday, August 10, 2010

Corneal Transplant

A corneal transplant (also known as a corneal graft or keratoplasty) involves the removal of the central portion (called a button) of a diseased cornea and replacing it with a matched donor button of cornea. The cornea is the clear part of eye in front of the iris and pupil. This procedure is performed on patients whose vision is impaired due to damaged or scarred corneas as a result of disease or trauma. This surgery is procedure is performed by ophthalmologists (medical doctors who specialize in eyes) and are often done on an outpatient basis.

A number of factors must be considered in deciding when to do a keratoplasty; it usually isn't an easy decision to make. One of the most important aspects that must be taken into consideration is the patient's functional vision. If the best acuity with their contact lenses prevents them from doing their job or carrying out their normal activities, a transplant must be considered.
A corneal transplant can be performed as a solution to the following conditions:

* Optical problems: this surgery can be performed to improve visual acuity by replacing the opaque host tissue by clear healthy donor tissue. The most common conditions in this group are pseudophakic bullous keratopathy, followed by keratoconus, corneal degeneration, keratoglobus and dystrophy, as well as scarring due to keratitis and trauma.

* Tectonic/reconstructive reasons: keratoplasty can be performed to preserve corneal anatomy and integrity in patients with stromal thinning and descemetoceles. It can also reconstruct the anatomy of the eye; for example, after corneal perforation.

* Therapeutic reasons: this procedure can be undertaken to remove inflamed corneal tissue unresponsive to antibiotic or anti-viral treatment.

* Cosmetic reason: keratoplasty can be performed to improve the appearance of patients with corneal scars that have given a whitish or opaque hue to the cornea.

After a keratoplasty, patients should expect very gradual recovery of vision. You should keep in mind that the recovery process following transplant is long and it can often take a year or longer.

If have any questions concerning this procedure, please feel free to send us an email. Better Looks will be glad to assist you when it comes to making the decision of going ahead with surgery.

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