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Phototherapeutic keratectomy (PTK) is a type of eye surgery that uses a laser to treat various ocular disorders by removing tissue from the cornea. PTK allows the removal of superficial corneal opacities and surface irregularities. It is similar to photorefractive keratectomy, which is used for the treatment of refractive conditions.
With PRK, the corneal epithelium is removed and discarded, allowing the cells to regenerate after the surgery. The procedure is distinct from LASIK (laser-assisted in-situ keratomileusis), a form of laser eye surgery where a permanent flap is created in the deeper layers of the cornea. However, PRK takes longer to heal and can, initially, cause ...
Treatment of patients whose vision is less than 20/200 in the affected eye. Patients with failed corneal transplant using donor cornea and have little or no vision left. Patients with non-autoimmune diseases, congenital birth defects and other ocular problems. Patients who do not have access to corneal transplant tissue
Osteo-odonto-keratoprosthesis (OOKP), also known as "tooth in eye" surgery, [1] is a medical procedure to restore vision in the most severe cases of corneal and ocular surface patients. It includes removal of a tooth from the patient or a donor.
These burns cause a ring of constriction on the peripheral cornea causing the cornea to steepen making the eye focus better at near. This procedure may regress somewhat over time. It is similar to the conductive keratoplasty (CK) procedure where a micro-needle high frequency probe is used to make a ring of corneal burns in a similar fashion.
It involves excising a damaged section of cornea, and replacing it with a section (or "flap") of the patient's own conjunctiva. [ 1 ] It is named for Trygve Gundersen (1902 – February 24, 1987), an American ophthalmologist of Scandinavian descent, who first described the procedure in 1958 at the Massachusetts Eye and Ear Infirmary .
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