Stereoacuity Thresholds before and after Visual Acuity Testing
نویسندگان
چکیده
منابع مشابه
Visual Acuity Before and After Occlusion Therapy in Children and Adolescents (Aged 5-13 years) Amblyopia
Purpose: To evaluate the effect of occlusion therapy on visual acuity in children and adolescents (aged 5-13 years) with amblyopia. Methods: This experimental study followed a pretest-posttest design. Totally, 72 people with amblyopic eyes (visual acuity between 20/100 and 20/25) were selected through convenient sampling. The visual acuity was assessed at 1, 3, and 6 months after starting occlu...
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THE use of the visuscope in an amblyopic eye helps to determine the part of the retina used during uniocular fixation. However, it is also important to know from a clinical standpoint whether the fovea is inhibited through a peripheral or a central mechanism, and whether in a particular case, the resolving power of the rods or the cones is affected. Various authors have studied the behaviour of...
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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 ...
متن کاملVisual acuity testing in young children.
Various tests are in common use for determining the visual acuity (VA) in children, and this paper reports the results of an investigation into some of them in regard to their accuracy, acceptability, and comparability. Early assessment of the VA is desirable in order to detect any abnormality, but through lack of co-operation and comprehension, it cannot usually be carried out until the age of...
متن کاملVisual acuity and macular sensitivity in myopic eyes before and after laser in situ keratomileusis.
PURPOSE To evaluate the changes in visual acuity (VA) and in macular sensitivity in myopic eyes subjected to laser in situ keratomileusis (LASIK) refractive surgery. METHODS In 38 myopic eyes, VA by Snellen's table and macular sensitivity by scanning laser ophthalmoscope (SLO) microperimetry were assessed before and after 24 weeks after LASIK surgery. The myopic eyes were divided into three a...
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ژورنال
عنوان ژورنال: Ophthalmology
سال: 2012
ISSN: 0161-6420
DOI: 10.1016/j.ophtha.2011.06.041