Snellen chart, used to test visual acuity. Snellen chart, chart used to measure visual acuity by determining the level of visual detail that a person can discriminate. It was developed by the Dutch ophthalmologist Herman Snellen in 1862 and was adopted by medical professionals in many countries ...
Noun1.Snellen chart- display consisting of a printed card with letters and numbers in lines of decreasing size; used to test visual acuity display,presentation- a visual representation of something Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc. ...
display consisting of a printed card with letters and numbers in lines of decreasing size; used to test visual acuity 相似短语 snellen chart phr. 斯内伦视力表,斯耐伦视觉图片 Snellen eye chart 斯内伦测视力图 Snellen's chart 【医】 斯内伦氏视力表 hermann snellen n. (= Hermann Snellen) 赫...
Visual Acuity Development The pattern VEP has been used to estimate visual acuity in infants for the past 35 years.43Just as a standardeye chartfor measuring visual acuity contains letters ranging from very large to quite small, a pattern VEP acuity test includes a group of checkerboard or stri...
Eye test chart visual acuity chart 19 inch Highly-reliable medical LCD visual panel chart lcd vision charts An eye chart is a chart used to measure visual acuity. Eye charts are often used by health care professionals, such as physicians or nurses, to screen persons for vision impairment. Oph...
Purpose: The purpose of this study was to evaluate the difference between full chart, single line, and single optotypes visual acuity (VA) test results in healthy and amblyopic children. Methods: Thirty-five children with amblyopia (20 with strabismus and 15 with anisometropia) and 40 ...
Ophthalmologists, physicians who specialize in the eye, also use eye charts to monitor the visual acuity of their patients in response to various therapies such as medications or surgery. The eye test chart is placed at a standardized distance away from the person whose vision is being tested. ...
Assess binocular and monocular visual acuity. IMPORTANT This calculator is intended as a convenient screener for visual acuity to be used on a mobile device and should not be used as a replacement for in-office testing. Evidence for smartphone apps for Snellen visual acuity is limited, and cur...
During an eye test, your eye doctor will use a chart of letters ("eye chart") to measure how well you see objects at least 20 feet (6 meters) away. This is called distance visual acuity testing. If you haven't had an eye exam recently, click here to find an eye doctor near you...
Development of Intelligent Visual Acuity Test Chart智能视力表的研制 3)Intelligent manometer智能压力表 4)intelligent electric instrument智能电力仪表 1.Through comparing the various models of intelligent breaker of different manufactures, a conclusion that it will reach or exceed all functions that congeneric...