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2. Photorefractive keratectomy - Wikipedia

   en.wikipedia.org/wiki/Photorefractive_keratectomy

   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 ...

3. Refractive surgery - Wikipedia

   en.wikipedia.org/wiki/Refractive_surgery

   Photorefractive keratectomy (PRK) is an outpatient procedure generally performed with local anesthetic eye drops (as with LASIK/LASEK). It is a type of refractive surgery which reshapes the cornea by removing microscopic amounts of tissue from the corneal stroma, using a computer-controlled beam of light (excimer laser). The difference from ...

4. LASIK - Wikipedia

   en.wikipedia.org/wiki/LASIK

   LASIK surgery is performed by an ophthalmologist who uses a femtosecond laser or a microkeratome to create a corneal flap to expose the corneal stroma and then an excimer laser to reshape the corneal stroma in order to improve visual acuity. [2] [3] LASIK is very similar to another surgical corrective procedure, photorefractive keratectomy (PRK ...

5. Laser blended vision - Wikipedia

   en.wikipedia.org/wiki/Laser_blended_vision

   During the surgery, a corneal flap is created, during which there can be a sensation of slight pressure on the eye during the procedure. The non-dominant eye is covered and the dominant eye is opened and kept open by a speculum, the corneal flap is lifted and the laser correction is done – an ultra thin flap can be created for treatment of ...

6. List of optometric abbreviations - Wikipedia

   en.wikipedia.org/wiki/List_of_optometric...

   oculus dexter (right eye) OH Ocular history OMB Oculo motor balance ONH Optic nerve head Oph Ophthalmoscopy OS oculus sinister (left eye) OU oculus uterque (both eyes) PD Pupillary distance PERRLA Pupils equal, round, reactive to light and accommodation PH Pinhole see Pinhole occluder and Visual_acuity#Legal_definitions: PHNI Pinhole No Improvement

7. Radial keratotomy - Wikipedia

   en.wikipedia.org/wiki/Radial_keratotomy

   Radial keratotomy (RK) is a refractive surgical procedure to correct myopia (nearsightedness). It was developed in 1974 by Svyatoslav Fyodorov, a Russian ophthalmologist. It has been largely supplanted by newer, more accurate operations, such as photorefractive keratectomy, LASIK, Epi-LASIK and the phakic intraocular lens. [1]