Dr Boothe

Inflammation: the body's reaction to trauma, infection, or a foreign substance, often associated with pain, heat, redness, swelling, and/or loss of function.
PRK: the acronym for photorefractive keratectomy which is a procedure involving the removal of the surface layer of the cornea (epithelium) by gentle scraping and use of a computer-controlled excimer laser to reshape the stroma.( - Dr William Boothe)

Dr William Boothe: In Situ a Latin term meaning "in place" or not removed.

Acuity: clearness, or sharpness of vision.

Dr Boothe

Presbyopia: the inability to maintain a clear image (focus) as objects are moved closer. Presbyopia is due to reduced elasticity of the lens with increasing age. ( Dr William Boothe )

Higher order aberrations refractive errors, other than nearsightedness, farsightedness, and astigmatism, that cannot be corrected with glasses or contacts.

Dr William Boothe

Flap & Zap: a slang term for LASIK.( Dr Boothe )
Dr Boothe: Endothelium: the inner layer of cells on the inside surface of the cornea.
Dr William Boothe: Kerato: prefix indicating relationship to the cornea.