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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Stephen A. Burns
  • Vol. 24, Iss. 5 — May. 1, 2007
  • pp: 1438–1447

Adaptive optics retinal imaging reveals S-cone dystrophy in tritan color-vision deficiency

Rigmor C. Baraas, Joseph Carroll, Karen L. Gunther, Mina Chung, David R. Williams, David H. Foster, and Maureen Neitz  »View Author Affiliations

JOSA A, Vol. 24, Issue 5, pp. 1438-1447 (2007)

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Tritan color-vision deficiency is an autosomal dominant disorder associated with mutations in the short-wavelength-sensitive- (S-) cone-pigment gene. An unexplained feature of the disorder is that individuals with the same mutation manifest different degrees of deficiency. To date, it has not been possible to examine whether any loss of S-cone function is accompanied by physical disruption in the cone mosaic. Two related tritan subjects with the same novel mutation in their S-cone-opsin gene, but different degrees of deficiency, were examined. Adaptive optics was used to obtain high-resolution retinal images, which revealed distinctly different S-cone mosaics consistent with their discrepant phenotypes. In addition, a significant disruption in the regularity of the overall cone mosaic was observed in the subject completely lacking S-cone function. These results taken together with other recent findings from molecular genetics indicate that, with rare exceptions, tritan deficiency is progressive in nature.

© 2007 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(330.1720) Vision, color, and visual optics : Color vision
(330.4300) Vision, color, and visual optics : Vision system - noninvasive assessment
(330.5310) Vision, color, and visual optics : Vision - photoreceptors

ToC Category:
Clinical Applications of Retinal Imaging

Original Manuscript: September 1, 2006
Revised Manuscript: December 6, 2006
Manuscript Accepted: December 7, 2006
Published: April 11, 2007

Virtual Issues
Vol. 2, Iss. 6 Virtual Journal for Biomedical Optics

Rigmor C. Baraas, Joseph Carroll, Karen L. Gunther, Mina Chung, David R. Williams, David H. Foster, and Maureen Neitz, "Adaptive optics retinal imaging reveals S-cone dystrophy in tritan color-vision deficiency," J. Opt. Soc. Am. A 24, 1438-1447 (2007)

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