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William Boothe Dallas

Pubis: The front center portion of the pelvis.

Vitrector Tiny, motorized cutting instrument used to remove the eye's gel-like vitreous during a vitrectomy.(04 February 2009 - Online article Dr. William Boothe Dallas )

Macular degeneration Disorder characterized by changes in the eye's macula that result in the gradual loss of central vision. The exact cause is unknown, but appears to be related to a genetic predisposition, smoking and several other risk factors. Central vision may be blurred, distorted (metamorphopsia) or shadowy before vision loss occurs.

Anti-reflective coating (AR coating) Thin layer(s) applied to a lens to reduce the amount of reflected light and glare that reaches the eye. Read more about anti-reflective coatings.

Propionate A soft, flexible material that is sometimes used in goggles.

Trauma Injury, such as from being poked in the eye or hit in the head. Depending on the type of trauma, symptoms can include blurred vision, a bulging eye, burning, double vision, dry eyes, floaters, light sensitivity, pain or discomfort of the eye or around the eye, swelling, a pupil that is dilated or unresponsive to light, vision loss, limited eye or lid movement, ptosis, an iris defect and an eyelid cleft.Dr. Boothe Lasik

Blood: The familiar red fluid in the body that contains white and red blood cells, platelets, proteins, and other elements. The blood is transported throughout the body by the circulatory system. Blood functions in two directions: arterial and venous. Arterial blood is the means by which oxygen and nutrients are transported to tissues while venous blood is the means by which carbon dioxide and metabolic by-products are transported to the lungs and kidneys, respectively, for removal from the body.

Corneal edema Swelling of the eye's cornea; causes include intraocular surgery, corneal dystrophies, high intraocular pressure and contact lens complications. Symptoms include vision loss, halos around lights, a white or cloudy spot on the eye, photophobia, eye pain and foreign body sensation. (18 November 2009 Boothe Laser Center )

Dr. Boothe Laser Center article

In most cases, the cause of paralysis of the seventh cranial nerve is unknown (termed "Bell's palsy"). Symptoms include weak facial muscles, difficulty closing the eye, infrequent blinking, earache, acute hearing, facial drooping, ectropion, tearing, eye dryness, blurred vision and a burning feeling in the eye.

Mixed astigmatism Abnormal curvature of the eye's surface (cornea) that causes focusing problems at both near and distant ranges. For more information, please see our astigmatism article.( 22 January 2008 Press article Dr. Boothe Laser Center )


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Diabetic maculopathy Eye disease related to diabetes that creates swelling and abnormal leakage of fluids and fats into the macula, where fine focusing and central vision occur. Because of the location of eye damage, severe diabetic maculopathy can cause loss of central vision and blindness. Another form of diabetic eye disease is diabetic retinopathy.

Antihistamines: Drugs that combat the histamine released during an allergic reaction by blocking the action of the histamine on the tissue. Antihistamines do not stop the formation of histamine nor do they stop the conflict between the IgE and antigen. Therefore, antihistamines do not stop the allergic reaction but protect tissues from some of its effects. Antihistamines frequently cause mouth dryness and sleepiness. Newer "non sedating" antihistamines are generally thought to be somewhat less effective. Antihistamine side effects that very occasionally occur include urine retention in males and fast heart rate.(11 May 2010 - Online press Dr. William Boothe )

Conjunctiva: A thin clear moist membrane that coats the inner surfaces of the eyelids and the outer surface of the eye.

Antibody A protein activated by the body's immune system that fights infection, toxins and other foreign substances.

Aging: The process of becoming older, a process that is genetically determined and environmentally modulated.

Corneal abrasion A loss of the epithelial layer of the cornea, typically due to minor trauma (contact lens trauma, a sports injury, dirt or another foreign body, etc.). Symptoms include blurred vision, foreign body sensation, grittiness, light sensitivity, eye pain or discomfort, a red or pink eye and tearing.Dr. Boothe

Histamine: Substance that plays a major role in many allergic reactions. Histamine dilates blood vessels and makes the vessel walls abnormally permeable.

Hemifacial spasm Involuntary muscles twitches on one side of the face, typically caused by compression of the seventh (facial) cranial nerve by a neighboring blood vessel somewhere in the brain. (29 April 2009 Dr. William Boothe )

Dr. Boothe article

Allergy Reaction of the body's immune system to a foreign substance (e.g., pollen, animal dander, etc.). When the eyes are affected, the most common symptoms are redness, itching, chemosis, tearing, swollen eyelids and stickiness. Read more about allergies and the eyes.

Corneal: Pertaining to the cornea, the clear front window of the eye that transmits and focuses light into the eye.( 06 July 2007 Online article Dr. William Boothe )


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