Post Corneal Transplant & Custom Contact Lenses In Portland, Oregon
After a corneal transplant, patients tend to require specialty contact lenses in order to achieve clear and comfortable vision.
Two Common Types of Corneal Transplants
Corneal transplants have two main categories: Penetrating keratoplasty (PK) and Endothelial Keratoplasty (EK).
Penetrating Keratoplasty (PK): A corneal transplant of the full thickness of the cornea
Endothelial Keratoplasty (EK): A corneal transplant where only the back layer of the cornea Is corrected
Why is a Corneal Transplant is Performed?
A corneal transplant is recommended for those who have:
- Vision problems caused by the thinning of the cornea, generally due to keratoconus (this procedure may also be advised when less invasive treatments are not working)
- Scarred cornea caused by severe injuries or infections
- Vision loss caused by cloudiness of the cornea, which typically results from Fuchs dystrophy
What Is Keratoconus?
Keratoconus (keh-rah-toe-cone-us) is an eye disorder in which the round dome-shaped cornea progressively thins causing a cone-like bulge to develop.
Patients with keratoconus have irregular, cone-shaped corneas, and cannot use glasses to correct vision. The ideal solution, therefore, is scleral contact lenses. They sit on the sclera without touching the cornea, while providing sharpness, clarity and comfort in vision.
The The Scleral Lens Center at The Eye Studio provides advanced eye care for keratoconus patients from all over the state of Oregon including Portland, Beaverton, Vancouver, and Hillsboro.
Scleral Lenses & Post-Corneal Transplant Surgery
Corneal transplants tend to result in irregular corneas, as the transplant doesn’t fully adapt to the eye. The eye doctor may recommend rigid gas permeable lenses (RGP’s), hybrid contact lenses or scleral lenses to provide you with clear vision and comfort without requiring any further surgery.
Scleral lenses are the optimal choice as the lens vaults entirely over the cornea without adding any pressure to it. After a corneal transplant, the cornea may still be considered irregular and diseased, and the scleral lens allow one’s cornea to remain hydrated while avoiding any risk of scarring.