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Scaling: Abnormal shedding or accumulation of an upper layer of skin (the stratum corneum ).
Central island Refractive surgery complication in which the laser leaves an "island" of corneal tissue in the concave ablation zone. Symptoms include double vision and distortion. Read more about potential complications of LASIK and other kinds of refractive surgery.( - dr william boothe dallas)
dr william boothe dallas: Myelin A sheath made of proteins that covers nerve fibers. Myelin is essential to transmission of nerve impulses carrying information to and from various parts of the body. When myelin is destroyed or damaged in the optic nerve, the result is optic neuritis, with vision loss or distortions.
Pain: An unpleasant sensation that can range from mild, localized discomfort to agony. Pain has both physical and emotional components. The physical part of pain results from nerve stimulation. Pain may be contained to a discrete area, as in an injury, or it can be more diffuse, as in disorders like fibromyalgia . Pain is mediated by specific nerve fibers that carry the pain impulses to the brain where their conscious appreciation may be modified by many factors.
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Higher-order aberration Irregularity of the eye other than a refractive error (myopia, hyperopia or astigmatism). Higher-order aberrations sometimes affect your vision (such as decreasing contrast sensitivity), and sometimes do not. For more information, please see our higher-order aberration article. ( dr boothe tx )
Fixation In terms of vision, the eye's ability to maintain gaze upon an object.
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Wear schedule How long you wear your contact lenses: either daily wear (you remove the lenses each night) or extended wear (you may sleep with them in). It's important to differentiate between wear schedule and replacement schedule — that is, how often you discard and replace your lenses.( Dr. Boothe Dallas )
Dr. William Boothe Lasik: Rod A photosensitive receptor in the retina that helps you to see in low light.
Dr. Boothe Eye Surgery: 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.
