Results 151 to 160 of about 40,438 (183)
Comparison of the ETDRS logMAR, ‘compact reduced logMar’ and Snellen charts in routine clinical practice [PDF]
Eye, 2009 To compare the performance of the ETDRS logMAR, compact reduced logMAR and Snellen charts in an ophthalmic outpatient setting.The reliability and reading times of the charts were compared in a stratified sample of 40 eyes of 40 ophthalmic patients with a variety of stable eye diseases.
Paul J. Hewson
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Optometry and Vision Science, 2001 ABSTRACT: Background. Logarithm of the minimum angle of resolution (logMAR) charts come in a variety of alternative forced‐choice (AFC) formats and can be used with a variety of different rules to determine when to stop a subject reading down a chart (termination rules).
Andrew Carkeet
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How Sensitive to Clinical Change are ETDRS logMAR Visual Acuity Measurements?
Investigative Ophthalmology and Visual Science, 2003 To determine the sensitivity to change and specificity achieved when published test-retest variability (TRV) data are used to determine whether measured changes in ETDRS logarithm of the minimum angle of resolution (logMAR) visual acuity reflect true clinical change or are attributable to measurement error alone.Various degrees of change in visual ...
Fred W Fitzke
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The logMAR Kay picture test and the logMAR acuity test: a comparative study [PDF]
Eye, 2007 To compare the level of visual acuity with crowded and uncrowded versions of the logMAR acuity test and the Kay picture test in amblyopia.A prospective study was carried out on 51 participants with amblyopia (strabismic n=17; anisometropic n=10; combined n=24), mean age 10 years 8 months. The amblyopia was defined as severe/moderate (< 0.250 logMAR), n=
A Y Firth
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A Calculator for LogMAR Visual Acuity Measurements
Australasian journal of optometry, The, 1984A sliding-scale calculator is presented that indicates the conventional (6m) Snellen acuity fraction, given any logMAR chart standard viewing distance and the size of the smallest letters on that chart read correctly by a patient.
Alan W Johnston
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Eye, 2003 AIMS: This study aimed to evaluate a new chart designed to improve the collection of visual acuity data in population-based surveys. The Reduced logMAR E chart (RLME) employs three letters per line, 'tumbling E' optotypes, and conforms to accepted ...
G J Johnson, D A H Laidlaw
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Construction and validation of a Tamil logMAR chart
Ophthalmic and Physiological Optics, 2009Abstract Purpose: To design, construct and validate a new Tamil logMAR visual acuity chart based on current recommendations. Methods: Ten Tamil letters of equal legibility were identified experimentally and were ...
Krithica Srinivasan
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The development of a “reduced logMAR” visual acuity chart for use in routine clinical practice [PDF]
British Journal of Ophthalmology, 2001 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 ...
D A H Laidlaw
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The Sonksen logMAR Test of Visual Acuity: I. Testability and reliability
Journal of AAPOS, 2007To develop a standardized logMAR test of visual acuity for young children and establish testability and reliability.Two thousand nine hundred ninety-one children, aged 2 to 8 years 6 months, from a population sample of 4671 were recruited from schools and preschool facilities and tested.
Alison T. Salt
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Graefe's Archive for Clinical and Experimental Ophthalmology, 2013
It is not common to quantify visual acuity worse than 2.0 logarithm of the minimal angle resolution (logMAR) (commensurate with decimal visual acuity 0.01) at ophthalmology clinics. Recently, the Berkeley rudimentary vision test (BRVT) was developed as a simple measurement tool of logMAR with angular vision for quantifying poor levels of visual acuity.
Nobuhisa Mizuki
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It is not common to quantify visual acuity worse than 2.0 logarithm of the minimal angle resolution (logMAR) (commensurate with decimal visual acuity 0.01) at ophthalmology clinics. Recently, the Berkeley rudimentary vision test (BRVT) was developed as a simple measurement tool of logMAR with angular vision for quantifying poor levels of visual acuity.
Nobuhisa Mizuki
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