visual acuity test…

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what the risks are --> eye, visual acuity test, normal, near, farsightedness, eye test, acuity, vision test, acuity, visual acuity test is, determine the smallest letters a person, read on a standardized chart, card held 14 - 20 feet away, this test done, health care provider's office, a school, a work place, elsewhere, stand behind a line 20 feet, eye chart, remove glasses, contacts, keep both eyes open, gently cover one eye, the palm of hand, a piece of paper, a paper cup read out loud the smallest line of letters, read on the chart, not sure, the letter, guess, on each eye, one at a time, repeated wear glasses, contacts, asked, read letters, numbers, a card held 14 inches from face, test near vision, no special preparation is necessary, children, provide depends on child's age, level of trust, prepare child, toddler test, procedure preparation, 1 to 3 years, preschooler test, procedure preparation, 3 to 6 years, schoolage test, procedure preparation, 6 to 12 years, adolescent test, procedure preparation, 12 to 18 years, no discomfort, visual acuity test, routine part of an eye examination, general physical examination, change in vision, a problem, vision, in children, test is performed to screen, visual problems, vision problems in young children, improved, undetected, untreated problems, permanent damage to vision, visual acuity is expressed, a fraction, top number refers, distance stand, chart, 20 feet, bottom number indicates the distance at which a person, normal eyesight could read the same line correctly read, 20/20, considered normal, 20/40 indicates that the line correctly read at 20 feet, read by a person, normal vision from 40 feet away, abnormal results, indicate that need corrective lenses, obtain normal vision, indicate an eye condition requiring further evaluation, related topics, nearsightedness, farsightedness, presbyopia, amblyopia, lazy eye, no risks.