| Fast scanning photoretinoscope for measuring peripheral refraction as a function of accommodation. | |
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MedLine Citation:
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PMID: 19798401 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A new device was designed to provide fast measurements (4 s) of the peripheral refraction (90 degrees central horizontal field). Almost-continuous traces are obtained with high angular resolution (0.4 degrees) while the subject is fixating a central stimulus. Three-dimensional profiles can also be measured. The peripheral refractions in 10 emmetropic subjects were studied as a function of accommodation (200 cm, 50 cm, and 25 cm viewing distances). Peripheral refraction profiles were largely preserved during accommodation but were different in each individual. Apparently, the accommodating lens changes its focal length evenly over the central 90 degrees of the visual field. |
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Authors:
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Juan Tabernero; Frank Schaeffel |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of the Optical Society of America. A, Optics, image science, and vision Volume: 26 ISSN: 1520-8532 ISO Abbreviation: J Opt Soc Am A Opt Image Sci Vis Publication Date: 2009 Oct |
Date Detail:
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Created Date: 2009-10-02 Completed Date: 2010-02-16 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9800943 Medline TA: J Opt Soc Am A Opt Image Sci Vis Country: United States |
Other Details:
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Languages: eng Pagination: 2206-10 Citation Subset: IM |
Affiliation:
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Section of Neurobiology of the Eye, Ophthalmic Research Institute, Calwerstrasse 7/1, 72076 Tuebingen, Germany. juan.tabernero@klinikum.uni-tuebingen.de |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Accommodation, Ocular* Adult Humans Pupil / physiology Refraction, Ocular* Retinoscopes* Subtraction Technique Time Factors Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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