Abstract:
PURPOSE:To study reading acuity in children and assess the reliability of its measurement using the Italian version of the MNREAD reading chart. METHODS:One hundred sixteen children from grades 3 to 8 with normal near vision were tested at a pediatric eye care institution in northeastern Italy. Visual acuity was evaluated with Early Treatment Diabetic Retinopathy Study (ETDRS) charts and reading acuity with MNREAD charts. Examination with charts 1 and 2 by the same examiner in the same visit were used as test-retest measurements. RESULTS:Mean improvement of performance from grades 3 to 8 was approximately 1 line for ETDRS acuity and 1.5 sentences for reading acuity and critical print size. Mean maximum reading speed increased from 96 to 167 words/minute. Regression analysis showed that a stable reading speed was obtained throughout sentences of decreasing size up to the critical print size. Measurement error, expressed as 95% limits of agreement, was +/- 0.136 logarithm of the minimum angle of resolution (logMAR) and +/- 0.142 logMAR for ETDRS acuity and reading acuity, respectively. Critical print size had the lowest reliability (+/- 0.193 logMAR). Maximum reading speed limits of agreement were +/- 0.077 logarithm of words per minute (logWPM), or a 19% change in words per minute. There were no detectable effects of grade and refractive error on measurement errors. CONCLUSIONS:In children, MNREAD charts provide measurements of reading acuity as reliable as ETDRS chart measurements of distance acuity on a logMAR scale. They also provide highly reliable measurements of the maximum reading speed across all grades, independent of its noticeable increase.
journal_name
Invest Ophthalmol Vis Scijournal_title
Investigative ophthalmology & visual scienceauthors
Virgili G,Cordaro C,Bigoni A,Crovato S,Cecchini P,Menchini Udoi
10.1167/iovs.03-1304keywords:
subject
Has Abstractpub_date
2004-09-01 00:00:00pages
3349-54issue
9eissn
0146-0404issn
1552-5783pii
45/9/3349journal_volume
45pub_type
杂志文章abstract::Cell cultures derived from trabecular meshworks of human and bovine eyes and from bovine vascular endothelia were incubated at 37 degrees C for 1 hr with ethacrynic acid (ECA, 0.1-0.5 mmol/l) dissolved in culture medium. At 2 hr after the initial exposure, ECA at concentrations up to 0.4 mmol/l induced a reversible al...
journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1992-08-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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更新日期:2001-11-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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更新日期:2016-11-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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journal_title:Investigative ophthalmology & visual science
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更新日期:2015-12-01 00:00:00
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更新日期:2013-01-21 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章,多中心研究
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更新日期:2015-02-03 00:00:00
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journal_title:Investigative ophthalmology & visual science
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doi:
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:
更新日期:1994-07-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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doi:
更新日期:1996-08-01 00:00:00
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journal_title:Investigative ophthalmology & visual science
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更新日期:2011-04-16 00:00:00
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journal_title:Investigative ophthalmology & visual science
pub_type: 杂志文章
doi:10.1167/iovs.06-0226
更新日期:2007-02-01 00:00:00
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