Document Detail

Autosomal recessive incomplete achromatopsia with protan luminosity function.
MedLine Citation:
PMID:  309579     Owner:  NLM     Status:  MEDLINE    
A unique form of dichromatic color vision is described in a family with incomplete achromatopsia. In 1966, incomplete achromatopsia was diagnosed in 4 of 14 children of a consanguineous marriage. The 4 affected had best visual acuities of 6/60 or 6/180, pendular nystagmus, and aversion to bright lights. The ERG showed minimal photopic responses. No abnormality of rod function was present. There was a severe color vision defect. In 1976, one of the patients returned for further color testing. Color tests included measurement of the luminous efficiency function using heterochromatic flicker photometry and colorimetric evaluation. The luminous efficiency function resembled that of the protanope. From the colorimetric measurements, we conclude that the patient has a unique form of dichromatic color vision mediated by two visual photopigments: the normal MWS cone photopigment and a photopigment with the spectral characteristics of rhodopsin.
V C Smith; J Pokorny; F W Newell
Related Documents :
7914849 - Light color: effect on blood cells, immune function and stress status in turkey hens.
19544969 - Effects of colored lights, spacing between stimuli, and viewing distance on error in a ...
19432759 - Color difference thresholds of maxillofacial skin replications.
19908769 - Well-organized highly efficient white organic light emitting diodes using fluorescent e...
8047409 - Perceived motion of a colored spot in a noisy achromatic background.
12962389 - Color considerations in fluorescent solar concentrator stacks.
18766669 - An inherited retinopathy in commercial breeding chickens.
6984549 - The action of low-intensity pulsed ultrasound on amphibian embryonic tissues.
7607979 - The behaviour of the f2-f1 acoustic distortion product: lack of effect of brainstem les...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift für Augenheilkunde     Volume:  177     ISSN:  0030-3755     ISO Abbreviation:  Ophthalmologica     Publication Date:  1978  
Date Detail:
Created Date:  1979-01-26     Completed Date:  1979-01-26     Revised Date:  2007-09-17    
Medline Journal Info:
Nlm Unique ID:  0054655     Medline TA:  Ophthalmologica     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  197-207     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Color Perception Tests
Color Vision Defects / genetics*
Dark Adaptation
Genes, Recessive
Psychological Tests

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Recurrent dystrophic erosion of the corneal epithelium
Next Document:  Middle ear ciliary defect in Kartagener's syndrome.