Document Detail

A low-power, LED-based, high-brightness anomaloscope.
MedLine Citation:
PMID:  16938334     Owner:  NLM     Status:  MEDLINE    
Color matches made with a Nagel anomaloscope are used in the differentiation of color vision deficiencies. When these color matches are made over a wide range of retinal illuminances, the changes in the color match provide information about the regeneration kinetics and the absorption spectra of the middle- and long-wavelength cone photopigments. These steady-state color matches vary with a variety of conditions, and may have value in screening for eye disease. Recently, high-brightness LEDs have become available that allowed us to construct a LED-based, high-brightness anomaloscope. We used inexpensive, low-energy components to replicate an earlier instrument, getting a maximum retinal illuminance over 5.6 log Trolands.
Russell L Woods; Ahmed L Rashed; Juan M Benavides; Robert H Webb
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2006-08-30
Journal Detail:
Title:  Vision research     Volume:  46     ISSN:  0042-6989     ISO Abbreviation:  Vision Res.     Publication Date:  2006 Oct 
Date Detail:
Created Date:  2006-09-19     Completed Date:  2007-01-18     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0417402     Medline TA:  Vision Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  3775-81     Citation Subset:  IM    
The Schepens Eye Research Institute and Harvard Medical School, Boston, MA, USA.
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MeSH Terms
Adaptation, Ocular / physiology
Color Perception / physiology
Color Perception Tests / instrumentation*
Color Vision Defects / diagnosis*,  physiopathology
Equipment Design
Middle Aged
Optics and Photonics
Pilot Projects
Reproducibility of Results
Retina / physiopathology
Retinal Cone Photoreceptor Cells / physiology
Retinal Pigments / physiology
Grant Support
Reg. No./Substance:
0/Retinal Pigments

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