| Accommodation in infants as measured by photorefraction. | |
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MedLine Citation:
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PMID: 3447363 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We developed a video camera photorefractive procedure that allows on-line monitoring of accommodation from a distance of 1-2m, and have used it to study accommodation in twenty-nine 2- to 10-month-old human infants. We presented square wave gratings and random checkerboard targets at 25, 33, 50, and 100 cm from the infant. All infants altered their accommodation in the appropriate direction for changing target distances. We also presented infants with a slowly rotating circular striped target. We did not observe any systematic change in accommodation of the astigmatic infants to the rotating striped target, nor any significant change in their accommodation to stationary targets as a function of target type. Measured speeds of accommodation in infants were at least 4.6 D/sec, comparable to that found for adults. |
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Authors:
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H C Howland; V Dobson; N Sayles |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Vision research Volume: 27 ISSN: 0042-6989 ISO Abbreviation: Vision Res. Publication Date: 1987 |
Date Detail:
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Created Date: 1988-05-13 Completed Date: 1988-05-13 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0417402 Medline TA: Vision Res Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 2141-52 Citation Subset: IM |
Affiliation:
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Section of Neurobiology and Behavior, Cornell University, Ithaca, NY 14853. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Accommodation, Ocular* Age Factors Astigmatism / physiopathology Humans Infant Pattern Recognition, Visual / physiology Rotation Time Factors Video Recording Vision Tests / methods* |
| Grant Support | |
ID/Acronym/Agency:
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EY-02581/EY/NEI NIH HHS; EY-02995/EY/NEI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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