The cornea is your clear outer layer of your eye along side the sclera – the white part of your eye that protects the eye against germs, dirt and other things that may damage the eye. The cornea also helps your eye to focus light so you’ll be able to see clearly. Corneal opacities can cause anything from minor irritation to vision problems and even blindness. In fact, corneal problems are the fourth leading cause of blindness (after glaucoma, cataracts, and age-related macular degeneration). Injury, infection, and certain eye diseases can cause corneal opacities.
The term corneal disease refers to several conditions that affect this position your eye. These include infections, tissue breakdown, and other disorders you get from your parents.
Your cornea usually heals itself after most minor injuries or infections. But during the healing process, you may notice symptoms like:
- Blurred vision
- Extreme sensitivity to light
These symptoms also accompany other eye problems, so that they may signal a more serious issue that needs special treatment. If you have got them, visit your eye surgeon. At Hashmanis, our Cornea specialists treats all corneal conditions.
A cornea transplant (keratoplasty) is a surgical treatment to switch a part of your cornea with corneal tissue from a donor. Your cornea is the transparent, dome-shaped surface of your eye that accounts for an outsized portion your eye’s focusing power.
DMEK is a partial-thickness cornea transplant procedure that involves selective removal of the patient’s Descemet membrane and endothelium, followed by transplantation of donor corneal endothelium and Descemet membrane without additional stromal tissue from the donor.
DSAEK is a partial thickness cornea transplant procedure that involves selective removal of the patient’s Descemet membrane and endothelium, followed by transplantation of donor corneal endothelium additionally to donor corneal stroma. The transplanted tissue is approximately 100-200 microns thick.
DALK is a partial-thickness cornea transplant procedure that involves selective transplantation of the corneal stroma, leaving the native Descemet membrane and endothelium in place. A trephine of an appropriate diameter is employed to form a partial-thickness incision into the patient’s cornea, followed by pneumodissection or manual dissection of the anterior stroma.
Corneal collagen cross-linking (CXL) is a successful technique used to slow the progression of corneal ectatic disease, mainly keratoconus. It is able to achieve this aim with a single application of vitamin B2 (riboflavin) and ultraviolet-A light to the corneal stroma where it results in crosslinks to form between the collagen fibers, resulting in corneal stiffening.
Keratoconus is a progressive eye disease which is very common in people around the world and often begins in adolescence and adulthood which most people are not aware of. Topography-guided PRK combined with corneal collagen cross-linking (CXL) is an innovative new treatment for keratoconus.
Anterior Lamellar Keratoplasty (ALK) is an alternate treatment that selectively replaces the front part of the cornea when it’s scarred or distorted. In ALK, the surgeon dissects the cornea into two thin pieces and removes the front, scarred part. an identical area of healthy tissue from a donor cornea is then used to replace the area that was removed.