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The abbreviation for photorefractive keratectomy which is a practice involving the removal of the surface layer of the cornea (epithelium) by mild scraping and use of a computer-controlled excimer laser to reshape the stroma.

The black, round area in the midpoint of the iris that regulates the amount of light incoming the eye by constricting and dilating.

Imperfections in the focusing ability of the eye, for example, hyperopia, myopia, and astigmatism.

Any surgical procedure that attempts to decrease the patient’s refractive error (irregularities in the eye that prevent correct focus).

A return to the original refractive state.

Transmitter at the posterior of the eye that encompasses blood vessels and nerves and sends imageries to your brain.

SMILE is a new, minimally invasive laser vision correction procedure approved for certain nearsighted patients.

Standard chart with letters, numbers or symbols printed in rows of decreasing size used by eye care professionals in distance visual acuity testing.

A large class of pharmaceutical agents that chemically resemble cholesterol.

Difficulties from cataract surgery, LASIK or other eye surgeries can consequence in a variety of symptoms, including blurred vision, ptosis, foreign body sensation, halos around lights, light sensitivity, eye pain or discomfort, red or pink eyes, vision loss and an iris defect.