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Thu, 07/29/2010 - 10:28AM by drboothe0 0 Comments - 4 Views

Burn: Damage to the skin or other body parts caused by extreme heat, flame, contact with heated objects, or chemicals. Burn depth is generally categorized as first, second, or third degree. The treatment of burns depends on the depth, area, and location of the burn, as well as additional factors, such as material that may be burned onto or into the skin. Treatment options range from simply applying a cold pack to emergency treatment to skin grafts.

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.(03 January 2008 - Press article Dr. William Boothe Dallas )

Fungal: Pertaining to a fungus. For example, a fungal skin infection.

Toxoplasmosis An infection caused by the Toxoplasma parasite, often from undercooked meat or contact with feces. It may occur in people with compromised immune systems. Symptoms are flu-like and can include swollen lymph nodes and muscle aches. Ocular toxoplasmosis causes inflammation of the eye's interior, leading to uveitis.

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.

Bioptic telescopic lenses (BTL) Devices attached to glasses that provide extreme magnification, typically used for driving. For people with low vision who are qualified, telescopic lenses are attached above the driver's line of sight to help magnify objects such as road signs.Boothe Laser Center

Vitreous hemorrhage Bleeding that goes into the vitreous from nearby parts of the eye, such as from leaking retinal blood vessels. Causes include diabetic retinopathy, trauma, a retinal tear or detachment, vitreous detachment and retinal vascular occlusion (blockage in the retina's vascular system). Symptoms include sudden blurring or loss of vision, and new floaters.

Herpes of the eye See the definition of ocular herpes, or read our eye herpes article. (15 February 2009 Boothe Eye Center )

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Phytochemicals Chemicals found in plants that help protect against disease.

Microkeratome Small instrument that surgeons use to cut the cornea.( 18 June 2008 Blog article Dr. Boothe )

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Thu, 07/29/2010 - 10:23AM by drboothe0 0 Comments - 3 Views

Optician In the United States, opticians are not doctors, but in some states they must complete training and be licensed. And in some states they can, after special training, become certified to fit contact lenses. (Please visit the Opticians Association of America website for licensing requirements for various states.) Most opticians sell and fit eyeglasses, sunglasses, and specialty eyewear that are made to an optometrist's or ophthalmologist's prescription. Many also have equipment on the premises so they can grind lenses and put them in frames without ordering from a lab.

Electrolyte: An electrolyte is a substance that will dissociate into ions in solution and acquire the capacity to conduct electricity. The electrolytes include sodium, potassium, chloride, calcium and phosphate. Informally, called lytes. (The clue to the word electrolyte is in the lyte which comes from the Greek lytos meaning that may be dissolved.)(21 May 2007 - Online press Boothe Eye Care )

Astigmatism Condition in which the cornea's curvature is asymmetrical (the eye is shaped like a football or egg instead of a baseball); light rays are focused at two points on the retina rather than one, resulting in blurred vision. Additional symptoms include distorted vision, eyestrain, shadows on letters, squinting and double vision. Read more about astigmatism.

Fovea A depression in the retina that contains only cones (not rods), and that provides acute eyesight.

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

Spots Small, cloudy specks in the eye that become noticeable when they fall in the line of sight. Read our spots and floaters article.Boothe Eye Center

Amaurosis fugax Sudden and usually temporary vision loss caused by an "eye stroke." When a clot or blockage disrupts blood flow to the eye, symptoms can include curtain-like darkness, usually in just one eye.

Sign: Any objective evidence of disease. Gross blood in the stool is a sign of disease. It can be recognized by the patient, doctor, nurse, or others. In contrast, a symptom is, by its nature, subjective. Abdominal pain is a symptom. It is something only the patient can know. (13 March 2009 Boothe Laser Center )

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Keratitis Inflammation of the cornea, caused by an infection or inflammatory process. Symptoms include eye pain or discomfort, light sensitivity, foreign body sensation, grittiness and tearing.

Phoropter Device that provides various combinations of lenses used for tests of vision errors in eye examinations.( 17 July 2007 Online article Boothe Laser Center )

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Thu, 07/29/2010 - 9:03AM by drboothe0 0 Comments - 5 Views

Optician In the United States, opticians are not doctors, but in some states they must complete training and be licensed. And in some states they can, after special training, become certified to fit contact lenses. (Please visit the Opticians Association of America website for licensing requirements for various states.) Most opticians sell and fit eyeglasses, sunglasses, and specialty eyewear that are made to an optometrist's or ophthalmologist's prescription. Many also have equipment on the premises so they can grind lenses and put them in frames without ordering from a lab.

Disposable contact lenses Technically, this is any contact lens that is thrown away after a short period of time. Among most eye care practitioners, "disposable" usage ranges from one day to two weeks, while "frequent replacement" lenses are discarded monthly or quarterly.(20 December 2009 - Online blog Dr. William Boothe Lasik )

Obstruction: Blockage of a passageway. See, for example: Airway obstruction; Intestinal obstruction.

Sinusitis Inflammation of the sinuses, due to an infection or an allergic reaction. Probably the most common cause of pain in and around the eye. Symptoms include head pain (headache, pain around the eyes, toothache, jaw pain), nasal discharge, postnasal drip, coughing, eyelid swelling, swelling around the eyes, a stuffy nose, fatigue, bad breath and a sore throat.

Photoreceptor A light-sensitive cell found in the retina. Photoreceptors in the human retina are classified as cones and rods. Cones are located in the central retina (the fovea) and control color vision. Rods are located outside the fovea and control black/white vision in low-light conditions.

Skin: The skin is the body's outer covering. It protects us against heat and light, injury, and infection. It regulates body temperature and stores water, fat, and vitamin D. Weighing about 6 pounds, the skin is the body's largest organ. It is made up of two main layers; the outer epidermis and the inner dermis.Dr. William Boothe Dallas

Phakic An eye that still has its natural lens. When an eye is aphakic, usually the lens has been removed during cataract or other eye surgery.

Edema: The swelling of soft tissues as a result of excess water accumulation. (12 December 2009 Dr. Boothe )

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Hemorrhage Profuse bleeding.

Pseudotumor cerebri A condition whose symptoms mirror those of a brain tumor: increased intracranial pressure, headache, nausea, brief periods of vision loss (graying or blurring) and double vision. The cause is unknown, but patients are often obese women.( 06 November 2007 Blog article Boothe Eye Care )

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Thu, 07/29/2010 - 9:02AM by drboothe0 0 Comments - 10 Views

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 )

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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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Thu, 07/29/2010 - 9:02AM by drboothe0 0 Comments - 6 Views

Keratoconjunctivitis Inflammation of the cornea and conjunctiva.

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.(01 June 2010 - Online article Dr. William Boothe Lasik )

Cystoid macular edema (CME) Swelling of the eye's macula, caused by an excessive amount of fluid.

Monofocal Type of spectacle lens, intraocular lens (IOL) or contact lens design that has only one area through which the eye focuses. A multifocal lens has more than one focal area, enabling sight at multiple distances, typically for people with presbyopia.

Bioptic telescopic lenses (BTL) Devices attached to glasses that provide extreme magnification, typically used for driving. For people with low vision who are qualified, telescopic lenses are attached above the driver's line of sight to help magnify objects such as road signs.

Presbyope Person who has difficulty reading print and seeing near objects.Boothe Eye Care

Druse Small yellow or white deposit in the eye. Drusen are sometimes signs of macular degeneration.

Myopia Also called nearsightedness. Condition in which the length of the eye is too long, causing light rays to focus in front of the retina rather than on it, resulting in blurred distance vision. Additional symptoms include eyestrain, poor night vision and squinting. (28 June 2010 Boothe Laser Center )

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Patau syndrome Also called Trisomy-13. Condition caused by an extra, third copy of chromosome 13. Symptoms include severe mental retardation, a small head, microphthalmia, a cleft lip or palate, heart defects and extra fingers or toes; many patients also have an iris coloboma and retinal dysplasia (abnormal development). The majority of infants with Patau syndrome die within the first year.

CK (Conductive Keratoplasty) Procedure in which a surgeon uses radio waves to heat collagen in the cornea's periphery to shrink it and reduce hyperopia (farsightedness). CK is also used to treat presbyopia. Read more about CK.( 19 July 2009 Online press Boothe Eye Care )

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Thu, 07/29/2010 - 9:01AM by drboothe0 0 Comments - 9 Views

Vitrector Tiny, motorized cutting instrument used to remove the eye's gel-like vitreous during a vitrectomy.

Epiretinal membrane Thin layer of scar tissue on the retina; also called a macular pucker. Epiretinal membranes have a variety of causes, including vitreous detachment, but the cause is often unknown. In its early stages, an epiretinal membrane is often asymptomatic, but some people have blurred vision. You may also develop metamorphopsia.(24 February 2010 - Press article Boothe Eye Center )

Epithelium The cornea's outer layer of cells.

Horner's syndrome Condition characterized by a small pupil, ptosis and an abnormal lack of facial perspiration (all on the same side of the face); Horner's syndrome is caused by injury to the sympathetic nerves of the face.

Scaling: Abnormal shedding or accumulation of an upper layer of skin (the stratum corneum ).

Anophthalmos Absence of one or both eyes. Anophthalmos may be congenital or due to trauma, infection or other causes. Symptoms include reduced depth perception and peripheral vision.Dr. William Boothe Dallas

Lubricant: An oily or slippery substance. A vaginal lubricant may be helpful for women who feel pain during intercourse because of vaginal dryness.

Aniridia Absent or partially absent iris, typically congenital. Additional symptoms include poor vision and photophobia. (17 November 2009 Dr. Boothe Laser Center )

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Refraction The test performed during an eye exam to determine the eyeglass lens powers needed for optimum visual acuity. An automated refraction uses an instrument that does not require the patient to respond. A manifest refraction is the manual way to determine the best lenses, by placing various lenses in front of the patient's eyes and asking, "Which is better, lens A or lens B?"

Bowman's membrane Corneal layer between the epithelium and the stroma.( 10 October 2009 Online article Dr. William Boothe Dallas )

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