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Dr. William BootheHyperopia - the inability to see near objects as clearly as distant objects, and the need for accommodation to see distant objects clearly.( DR WILLIAM BOOTHE - LASIK DALLAS) DR WILLIAM BOOTHE - EYE SURGERY Dr William Boothe >> Glaucoma - A disease of the eye marked by increased fluid pressure within the eye. If left untreated, glaucoma can damage the optic never and cause loss of vision. Since there are usually no outward symptoms, it is important to get regular eye exams at least every two years.  Microkeratome: A precision surgical instrument used in LASIK to create a flap in the cornea. DR WILLIAM BOOTHE - LASIK SURGERY Keratectomy - the surgical removal of corneal tissue  Alcon - A manufacturer of medical equipment DR. WILLIAM BOOTHE - DALLAS Focusing power of the eye - The combined action of the cornea and the lens to refract light on to the retina. As light enters the eye, it’s refracted (bent) by the cornea, because of the cornea’s curvature. As the light continues further into the eye, passing through the pupil to reach the lens, it’s refracted more, to a variable degree according to how far away from the eye the object is which is reflecting this light. If it’s down the road a ways, like a distant traffic light, it needs to be refracted less in order to land in focus on the retina. If it’s close up, like the clock on the dashboard, it needs to be refracted more.  ASCRS - American Society of Cataract and Refractive Surgery, a professional membership organization for ophthalmologists who perform cataract and refractive surgeries DR WILLIAM BOOTHE - DALLAS LASIK Ablate - in surgery, is to remove  Board Certified - This is the phrase used for approval by the American Board of Ophthalmology (ABO), a non-profit and independent organization that was founded in 1916 to certify ophthalmologists DR. WILLIAM BOOTHE - LASIK DALLAS Anterior Basement Membrane Dystrophy - The most common corneal dystrophy. An eye condition where the membrane that lies beneath the epithelial cells (surface cells) of the cornea is uneven and traps cells below it which should normally rise above it. It impairs vision, is usually hereditary, and fluctuates in severity over the person's lifetime. It's also called Map-Dot-Fingerprint Dystrophy (a name based on how it looks microscopically), and Epithelial Basement Membrane Dystrophy  Excimer lasers have been used since 1987 for vision correction and were approved by the FDA in 1995 for correcting nearsightedness. Since then, they’ve been also approved for treating farsightedness and astigmatism.( DR. WILLIAM BOOTHE - LASIK SURGERY) DR. WILLIAM BOOTHE - LASIK SURGERY Acuity is clearness, or sharpness of vision.  Phoropter - A vision-testing instrument with many lenses, through which a person looks at the eye chart. As the lenses are switched, the person is asked which one gives the clearest images of the letters on the chart. On this basis, a prescription is determined for glasses or contact lenses. The eye chart is set first at 20 feet away, then at 16 inches away, to test both far and near vision. DR WILLIAM BOOTHE ALK Abbreviation for Automated Lamellar KeratectomyAllergan  Cornea - The clear dome at the front of the eye that is the first element of the focusing system that provides most of the eye's optical power. DR BOOTHE DR WILLIAM BOOTHE - LASIK SURGERY >> In the United States, the Food and Drug Administration (FDA) regulates the sale of medical devices such as the lasers used for LASIK. Before a medical device can be legally sold in the U.S., the person or company that wants to sell the device must seek approval from the FDA. To gain approval, they must present evidence that the device is reasonably safe and effective for a particular use, the "indication." Once the FDA has approved a medical device, a doctor may decide to use that device for other indications if the doctor feels it is in the best interest of a patient. The use of an approved device for other than its FDA-approved indication is called "off-label use." The FDA does not regulate off-label use or the practice of medicineThe first refractive laser systems approved by FDA were excimer lasers for use in PRK to treat myopia and later to treat astigmatism. However, doctors began using these lasers for LASIK (not just PRK), and to treat other refractive errors (not just myopia). Over the last several years, LASIK has become the main surgery doctors use to treat myopia in the United States. More recently, some laser manufacturers have gained FDA approval for laser systems for LASIK to treat myopia, hyperopia and astigmatism and for PRK to treat hyperopia and astigmatism.  Vitreous Fluid - The jelly-like fluid that fills the main part of the eye, between the lens and the retina. It’s clear so as to give light rays an unobstructed path to the retina, and to keep that clarity, it contains phagocytes, cells which ingest and destroy foreign matter. DR. WILLIAM BOOTHE - DALLAS LASIK Optician is an expert in the art and science of making and fitting glasses and may also dispense contact lenses.  Myopia the inability to see distant objects clearly. Dr. William Boothe The major difference between the two surgeries is the way that the stroma, the middle layer of the cornea, is exposed before it is vaporized with the laser. In PRK, the top layer of the cornea, called the epithelium, is scraped away to expose the stromal layer underneath. In LASIK, a flap is cut in the stromal layer and the flap is folded back.  Radial Keratotomy - commonly referred to as RK; a surgical procedure designed to correct myopia (nearsightedness) by flattening the cornea using radial cuts( DR. WILLIAM BOOTHE - EYE SURGERY) DR WILLIAM BOOTHE - LASIK DALLAS Laser Iridotomy production of a small hole in the outer edge of the iris using a laser beam.  Cornea - the clear, front part of the eye. The cornea is the first part of the eye that bends (or refracts) the light and provides most of the focusing power. DR WILLIAM BOOTHE - LASIK Automated Lamellar Keratoplasty (ALK) - A refractive eye surgery that treats myopia. The surgeon uses a microkeratome to cut a very thin shaving or flap from the corneal surface. Then a tiny piece even thinner is removed from the underlying tissue, to flatten the cornea a little, and the flap is replaced. It heals up without any need of stitches  Keratectomy - the surgical removal of corneal tissue DR. WILLIAM BOOTHE - EYE SURGERY Aphakic Spectacles - Very thick and heavy glasses that in past years were the standard remedy after a cataract operation. They gave distorted peripheral vision. Modern ophthalmologists can instead implant an intraocular lens (IOL) Refraction is a test to determine the best eye glasses or contact lenses to correct a refractive error (myopia, hyperopia, astigmatism) OR the bending of light by the use of a lens or other material. Dr William Boothe Over Correction the refractive error of the eye is corrected too much causing someone who is nearsighted to become farsighted or someone who is farsighted to become nearsighted. DR WILLIAM BOOTHE - DALLAS DR. WILLIAM BOOTHE - LASIK DALLAS >> PRK is 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. Shallow Anterior Chamber narrowness of the space between the cornea and the iris.( DR WILLIAM BOOTHE - LASIK) DR. WILLIAM BOOTHE - EYE CENTER Retreatment should not be carried out until a minimum of ( specify minimum time) after the initial surgery and the following conditions are met:(specify minimum UCVA and refractive criteria). The retreatment procedure should be described. Refractive stability should be used to determine timing of the repeated surgery. Misalignment of the eyes in childhood should be corrected as soon as possible, so that binocular vision (the brain’s ability to use both eyes together) can develop and amblyopia can be avoided. Surgery may be needed; or glasses, an eye patch, or other types of treatment. DR. BOOTHE Keratectomy is the surgical removal of corneal tissue. Astigmatism: A condition, usually caused by an irregularly shaped cornea, that causes blurred vision. Instead of being spherical, like a baseball, the cornea is oblong, like a football. DR WILLIAM BOOTHE - EYE CENTER Optic Disc - The circular area where the optic nerve meets the retinal nerve fibers, and where blood vessels enter the eye. It’s also known as the “blind spot” because this intersection with the optic nerve and presence of blood vessels interferes with the retina’s function as a camera film. Topography - (tuh-PAHG-ruh-fee) The contours of a surface; as in corneal topography, which can be recorded by a corneal topographer. DR. WILLIAM BOOTHE - LASIK Retina is the part of the eye that lines the inside wall of the eye and consists of fine sensory tissue which acts as the film in a camera that captures and transmits images. Binocular Vision - The use of both our eyes to see, such that the images from each eye blend to form a single image with dept perception DR. WILLIAM BOOTHE Cornea the clear, transparent cover over the iris and pupil on the front part of the eye. The cornea is the first part of the eye that bends (or refracts) the light and provides most of the focusing power of the eye. Slit Lamp - A microscope with a strong light and a variety of magnification settings. It can be sized down to a slit for examining an eye and gives detailed views of the structures and fluids in the eye.( DR. WILLIAM BOOTHE - LASIK DALLAS) DR BOOTHE Glare scatter from bright light that causes discomfort and can decrease vision and the ability to perform tasks like driving. AK - Astigmatic Keratotomy, an ophthalmological procedure for correcting astigmatism DR. WILLIAM BOOTHE - EYE CENTER DR. WILLIAM BOOTHE >> Clearness as in visual acuity. The most common measure of visual acuity is the Snellen Acuity- completely normal acuity being 20/20 or 6/6 (metric version)amblyopia Radial Keratotomy (RK) - (keh-ruh-TAH-tuh-mee) A surgical treatment for myopia. A myopic eye has a cornea which is too steep, refracting light rays too much, so they land in front of the retina, instead of on it, for clear vision. To make the cornea slightly flatter, tiny incisions are placed around the pupil, angled from the pupil out to the edge of the cornea. The number of incisions and their exact location depends on the degree of myopia. DR. WILLIAM BOOTHE - LASIK DALLAS Monovision - The correction of one eye for far distance and the other for near distance. This is a treatment for presbyopia. Snellen Visual Acuity Chart - one of many charts used to measure vision DR WILLIAM BOOTHE Aphakia - (ah-FAY-kee-uh) The condition of having no crystalline lens in the eye, as happens when it's been removed because of cataracts. Convex Lens - Lenses with the opposite curvature to concave lenses. They bulge outwards like a ball and are used to correct hyperopia and presbyopia DR WILLIAM BOOTHE - EYE CENTER Refractive Errors are hyperopia, myopia, astigmatism and presbyopia. http://mylasikweb.com/dr-william-boothe-dallas-lasik.html http://www.drboothelasik.org/dr-william-boothe-lasik-surgery.html http://mylasikweb.com/dr-william-boothe-lasik-dallas.html http://www.drboothelasik.org/contact-dr-william-boothe.html http://mylasikweb.com/dr-william-boothe-dallas.html http://www.drboothelasik.org/dr-william-boothe-dallas.html http://www.drboothelasik.org/blog http://mylasikweb.com/forum http://mylasikweb.com/blog http://www.drboothelasik.org/forum http://mylasikweb.com/dr-william-boothe.html http://www.drboothelasik.org/drboothe.htm http://mylasikweb.com/contact-dr-william-boothe.html http://mylasikweb.com/dr-william-boothe-lasik-surgery.html http://www.drboothelasik.org/dr-william-boothe-lasik-dallas.html There are no comments. |