Journal article
Threshold visual acuity testing of preschool children using the crowded HOTV and Lea Symbols acuity tests
Journal of AAPOS, v 7(6), pp 396-399
01 Dec 2003
PMID: 14730291
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Purpose: To compare the testability and threshold acuity levels for very young children on the crowded HOTV logMAR distance visual acuity test presented on the BVAT apparatus and the Lea Symbols logMAR distance visual acuity chart. Methods: Subjects were 87 Head Start children from age 3 to 3.5 years. Testing consisted of binocular pretraining at near using a lap card as needed, binocular pretraining at 3 m, and threshold testing for each eye. The testing procedure, adapted from the Amblyopia Treatment Study, presented optotypes until the child was unable to correctly name or match three of three or three of four optotypes of a given size. Threshold acuity was the smallest size for which at least three optotypes were correctly identified. Results: Both near and distance pretraining were completed by 71% of children for HOTV and by 75% for Lea Symbols (P = .39). The distribution of threshold acuities differed between the two tests. For the 69 eyes of 53 children who were successfully tested with both optotypes, results from the crowded HOTV acuity test were on average 0.25 logMar (2.5 lines) better than those from the Lea Symbols acuity test (P < .001). Conclusions: The proportion of children between 3 and 3.5 years of age whose monocular visual acuity could be assessed was high and was similar for the two charts tested. Crowded HOTV acuity results were better on average than results using Lea symbols. The different formats of the two tests may explain the observed differences in threshold acuity level.
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Details
- Title
- Threshold visual acuity testing of preschool children using the crowded HOTV and Lea Symbols acuity tests
- Creators
- Elise Ciner - Pennsylvania College of Optometry, United StatesLynn Cyert - Northeastern State UniversityVelma Dobson - University of ArizonaMarjean Taylor Kulp - The Ohio State UniversityMaureen Maguire - University of PennsylvaniaBruce Moore - New England College of OptometryDeborah Orel-Bixler - University of California, BerkeleyEllen Peskin - University of PennsylvaniaGraham Quinn - Children's Hospital of PhiladelphiaMaryann Redford - National Eye Institute, United StatesPaulette Schmidt - The Ohio State UniversityJanet Schultz - StartVision in Preschoolers (VIP) Study Group
- Publication Details
- Journal of AAPOS, v 7(6), pp 396-399
- Number of pages
- 4
- Grant note
- U10EY012644 / National Eye Institute (http://data.elsevier.com/vocabulary/SciValFunders/100000053) National Eye Institute (http://data.elsevier.com/vocabulary/SciValFunders/100000053)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Pennsylvania College of Optometry (PCO)
- Web of Science ID
- WOS:000187624700006
- Scopus ID
- 2-s2.0-10744222933
- Other Identifier
- 991022088940104721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Ophthalmology
- Pediatrics