The Concept of Visual Acuity Ratio to the Maximum Level of Individual Visual Acuity
نویسندگان
چکیده
منابع مشابه
the effect of using visual aids on the development of speech act of disagreement among iranian intermediate efl learners
abstract the present study tried to investigate the effect of visual aids (films) on the development of the speech act of disagreement among iranian efl intermediate learners. to this end, the researcher selected 40 homogeneous intermediate learners based on their scores on oxford placement test. .the subjects then divided into control group and experimental group. both classes were tested by ...
Symptomatic Rathke’s Cleft Cyst Presenting With Decreased Visual Acuity
Background and Importance: Symptomatic Rathke’s cleft cyst is a rare lesion that often presents without any symptoms. Case Presentation: We report a 40-year-old female with symptomatic Rathke’s cleft cyst located in the sellar and suprasellar region. She presented with visual disturbance, headache, weight gain, hypothyroidism and amenorrhea. The patient underwent surgery and ...
متن کاملDevelopment of visual acuity.
Catford, G. V., and Oliver, A. (1973). Archives of Disease in Childhood, 48, 47. Development of visual acuity. A hand-held electrically operated instrument has been devised to assess visual acuity by means of the phenomenon of optokinetic fixation nystagmus. An accurate determination of visual acuity has been obtained from an early age, and a graph of the normal visual acuity development produc...
متن کاملDefinition of visual acuity.
IT is well known that different types of test object will give different measures of acuity in terms of the size of the angle subtended at an observer's eye by the critical detail in the test object. Acuity of an average observer may vary from 1" arc, the thickness of a single black line just discernible on a white background, to about 1' arc, the size of a gap in a black ring viewed on a white...
متن کاملComputerized method of visual acuity testing: adaptation of the amblyopia treatment study visual acuity testing protocol.
PURPOSE To report a computerized method for determining visual acuity in children using the Amblyopia Treatment Study visual acuity testing protocol. METHODS A computerized visual acuity tester was developed that uses a programmed handheld device that uses the Palm operating system (Palm, Inc, Santa Clara, California). The handheld device communicates with a personal computer running a Linux ...
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ژورنال
عنوان ژورنال: Journal of Light & Visual Environment
سال: 2004
ISSN: 0387-8805,1349-8398
DOI: 10.2150/jlve.28.35