Results 161 to 170 of about 30,419 (187)
Some of the next articles are maybe not open access.
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
exaly +3 more sources
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 Salt
exaly +3 more sources
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.
Mari S Oba, Oba Mari S, Mizuki Nobuhisa
exaly +3 more sources
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.
Mari S Oba, Oba Mari S, Mizuki Nobuhisa
exaly +3 more sources
How Sensitive to Clinical Change are ETDRS logMAR Visual Acuity Measurements?
Investigative Opthalmology & 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 ...
F W Fitzke
exaly +3 more sources
Changing from Snellen to LogMAR: debate or delay?
Clinical & Experimental Ophthalmology, 2006AbstractVisual acuity is the most commonly used test to assess visual function. The Snellen chart is the universally accepted tool for testing visual acuity despite its poor reliability and reproducibility. Newer logMAR charts are now available that have negated the disadvantages of the Snellen chart.
Hussain, Badrul +3 more
openaire +3 more sources
Is conversion of decimal visual acuity measurements to logMAR values reliable?
Graefe's Archive for Clinical and Experimental Ophthalmology, 2019To assess if conversion of decimal visual acuity (VA) to logMAR is reliable for clinical and research purposes.Right eye VA of 74 consecutive patients was measured with 5 min interval, using (a) the ETDRS chart (VAlog), (b) a decimal chart at 6 m (VA6m), and (c) a decimal chart at 4 m (VA4m). VA was the smallest line whereby four of five optotypes were
Asimina Mataftsi +2 more
exaly +3 more sources
Snellen or logMAR in clinical ophthalmology
Acta Ophthalmologica, 2010Abstract Purpose The question remains if visual acuity measurements in clinical ophthalmology should use the well known Snellen notation or instead should switch to the slightly less intuitive logMAR notation Methods The differences in Snellen and logMAR notation will be explained in order to understand the (dis)advantages of each notation Results When
openaire +1 more source
Effects of dipivefrin and pilocarpine on pupil diameter, automated perimetry and LogMAR acuity
Graefe's Archive for Clinical and Experimental Ophthalmology, 1999A study was carried out to ascertain, in ophthalmologically normal subjects, the short-term effects of dipivefrin hydrochloride 0.1% on visual performance and make comparisons with pilocarpine.Twelve normal volunteers aged 20-26 years attended on three occasions.
D F, Edgar +5 more
openaire +2 more sources
The Dependency of LogMAR Visual Acuity Measurements on Chart Design and Scoring Rule
Optometry and Vision Science, 2002ABSTRACT: Background. Visual acuity, increasingly measured using a logarithm of the minimum angle of resolution (logMAR) chart, is the “gold standard” by which the outcomes of the vast majority of clinical trials or interventions are judged.
Charlotte A, Hazel, David B, Elliott
openaire +2 more sources
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
exaly +3 more sources
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
exaly +3 more sources