The cornea is the transparent front part of the eye, which appears black in colour.Any disease (like injury or infection) of the cornea can lead to loss of corneal transparency and consequently decrease/loss of vision
Major diseases that occur in the cornea?
Infection – mainly from scratches on the cornea and contact lens
Injury – may lead to rupture of the cornea
Post-operative (mainly after cataract surgery) loss of corneal transparency
Allergies - redness, itching, tearing, burning, stinging, and watery discharge.
Rheumatologic diseases affecting cornea.
Contact lens related corneal diseases
Pain on looking at light
Foreign body sensation
Whitish lesion on the “black part”(i.e cornea) of the eye.
Treatment for Corneal diseases.
Laser Surgery - Phototherapeutic keratectomy (PTK) is a surgical technique that uses UV light and laser technology to reshape and restore the cornea. PTK has been used to treat recurrent erosions and corneal dystrophies, such as map-dot-fingerprint dystrophy and basal membrane dystrophy. PTK helps delay or postpone corneal grafting or replacement.
Corneal Transplant Surgery - Corneal transplant surgery removes the damaged portion of the cornea and replaces it with healthy donor tissue
Anterior lamellar keratoplasty removes damaged stromal tissue and replaces it with healthy stroma from a donor. This procedure is used for:
Severe corneal scarring
Corneal dystrophies that affect the stroma
Endothelial lamellar keratoplasty removes diseased endothelial tissue and replaces it with healthy endothelium from a donor. This procedure is used for:
Corneal failure after surgery for cataract, glaucoma or retinal detachment
Artificial Cornea - A keratoprosthesis (KPro) is an artificial cornea. A KPro may be the only option available for people who have not had success with corneal tissue implants or who have a high risk of tissue rejection (such as those with Stevens-Johnson syndrome or severe chemical burns).