Ophthalmic Charts
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چکیده
منابع مشابه
Standardized measurement of visual acuity.
The authors reviewed the main aspects of visual acuity evaluation such as the characteristics of the test devices, the notation employed in recording the visual acuity level and the procedures for V.A. assessment, in both distance and near tests. In addition, new ten-letter charts, that tend to follow strictly the standardization guideline suggested by NAS-NRC, are described.
متن کامل[One month in an eye emergency clinic in Brasilia].
PURPOSE To evaluate all the visits to the ophthalmic emergency service in Brasília, Distrito Federal, Brazil, through a 1-month period. METHODS A retrospective chart review was carried out of all patients attending the ophthalmology emergency department of the "Hospital de Base de Brasília" during September 1 to 30, 2003. RESULTS Mean age was 32.9+/-18.0 years (ranging from zero to 90). Sev...
متن کاملEffect of blur and subsequent adaptation on visual acuity using letter and Landolt C charts: differences between emmetropes and myopes.
PURPOSE To compare the effects of defocus induced blur and blur adaptation on visual acuity and to evaluate any differences between emmetropes and myopes using letter and Landolt C logMAR charts. METHODS The sample consisted of 26 volunteers, with a mean age of 27 ± 3 years, comprising 13 emmetropes (spherical equivalent range: -0.63 to +0.50 D) and 13 myopes (spherical equivalent range: -0.7...
متن کاملClinical Dermatology: A Color Guide to Diagnosis and Therapy. Second Edition
diagrammed are drawn as they would appear under an operating microscope. Flow charts that enumerate the factors involved in the decision to operate are included, as are algorithms describing treatment procedures. Among the techniques described and illustrated are scleral buckling in retinal surgery and correction of refraction through keratotomy in corneal surgery. Also covered are various uses...
متن کاملThe development of a "reduced logMAR" visual acuity chart for use in routine clinical practice.
BACKGROUND/AIMS The advantages of logMAR acuity data over the Snellen fraction are well known, and yet existing logMAR charts have not been adopted into routine ophthalmic clinical use. As this may be due in part to the time required for a logMAR measurement, this study was performed to determine whether an abbreviated logMAR chart design could combine the advantages of existing charts with a c...
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عنوان ژورنال:
دوره 10 شماره
صفحات -
تاریخ انتشار 2016