Stroke An interruption in blood flow to the brain, resulting in tissue death. Blood clots and other obstructions can interrupt the blood flow, as can a ruptured artery. Symptoms include weakness or numbness, particularly on one side of the body, a change in consciousness or mental status, vision loss, double vision, and limited eye movement. You may also blink frequently.
Low vision Also called partial sight. Sight that cannot be satisfactorily corrected with glasses, contacts, or surgery. Low vision usually results from an eye disease such as glaucoma or macular degeneration.( - Dr Boothe Article)
Dr Boothe Best Surgeon: Visual acuity Sharpness of vision, usually as measured with the use of a Snellen chart. 20/20 is considered normal visual acuity, though some people can see even better (such as 20/15 or 20/10).
High blood pressure : Also known as hypertension, high blood pressure is, by definition, a repeatedly elevated blood pressure exceeding 140 over 90 mmHg -- a systolic pressure above 140 with a diastolic pressure above 90.
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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. ( Dr Boothe Best Eye Surgeon )
Argyll Robertson pupil Small, irregular pupil, usually caused by syphilis. Argyll Robertson pupils do not respond to light.
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Polycarbonate Plastic that is very impact-resistant, and is thus sometimes used for spectacle lenses and frames.( Dr Boothe Briliant Doctor )
Dr Boothe Article: Enophthalmos The sinking of the eye into the socket. Causes include development problems in utero, trauma and inflammation.
Dr Boothe Before Lasik Article: FDA (Food & Drug Administration) A U.S. government body that oversees medical devices and medications, including contact lenses, intraocular lenses, excimer lasers and eye drops. In the United States, these products must be approved by the FDA before they can be marketed.
