Descemet's membrane Corneal layer between the stroma and the endothelium.

Metamorphopsia Vision problem in which objects appear distorted. For example, straight lines may appear to be wavy, curved or bent, objects may appear to be larger or smaller than they actually are, or closer or farther away than they actually are. Metamorphopsia is typically caused by conditions or diseases that affect the eye's macula and retina.(27 December 2008 - Blog article Dr. William Boothe )

Episcleritis Inflammation of the episclera. The cause is usually unknown, but episcleritis may be associated with some systemic (e.g., autoimmune) diseases. Symptoms include a red or pink eye, eye pain or discomfort, light sensitivity and tearing.

Cellulitis Inflammation of tissue around the eye. Pre-septal cellulitis affects the lid and other "outer" areas of the eye, whereas orbital cellulitis affects the "inner" areas around the eyeball. Pre-septal cellulitis symptoms include a red, swollen lid, swelling around the eyes and eye or lid pain or discomfort. Orbital cellulitis symptoms include a bulging eye and ophthalmoplegia, as well as a red, swollen lid, swelling around the eyes, eye or lid pain or discomfort and a decrease in vision. An orbital cellulitis is an ocular emergency.

Environmental condition Air pollution, wind and bright light can irritate your eyes and cause symptoms such as burning, dryness and tearing.

Surgery complication Complications from cataract surgery, LASIK or other eye surgeries can result 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.Dr. William Boothe Lasik

Scrub: 1. As a verb, to wash the hands and forearms very thoroughly, as before engaging in surgery. To scrub implies the use of a brush (and often an implement to clean under the nails). To scrub, to scrub in (on a surgical procedure), and to scrub up are synonymous.
2. As a noun, a person who scrubs, as for surgery.
3. As an adjective, pertaining to scrubbing in for surgery, as a scrub nurse or a scrub tech.

Toxocariasis Infection caused by Toxocara worms, which are typically found in cat and dog intestines. The form found in the eyes, ocular larva migrans, can cause vision loss. (15 October 2007 Dr. William Boothe Dallas )

Dr. Boothe Dallas article

RK (Radial Keratotomy) Surgical procedure where cuts are made in the cornea in a radial pattern, to flatten the cornea and correct myopia. However, RK now is virtually obsolete as a corrective eye procedure.

Scotoma Blind spot within the field of view.( 08 February 2007 Blog article Dr. Boothe Laser Center )

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