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Correction of Low Visual Acuity in Achromatopsia: Use of Corrective Lenses as an Aid to Educational and Vocational Placement

Correction of Low Visual Acuity in Achromatopsia: Use of Corrective Lenses as an Aid to... Abstract The principal characteristics of achromatopsia are complete color blindness, subnormal vision, and severe photophobia. It is usually a recessive hereditary trait. The visual acuity of 80% of the patients studied ranged from 20/280 to 20/100. The incidence of strong refractive errors ranged from 4.50 to 10.00 D in 38% of the patients. Reading additions of +4.00 to +16.00 D were prescribed in 13 cases, and 94% of the prescriptions were judged to be successful. Severe photophobia was mitigated by lenses that transmit 19% of the visible spectrum. Followup showed that the majority of the children were able to read regular type in a normal educational setting, and none had to resort to reading large type or braille. References 1. Goethlin GF: Congenital red-green abnormality in colour vision and congenital total colour blindness from the point of view of heredity . Acta Ophthalmol 2:15-34, 1924.Crossref 2. Blackwell HR, Blackwell OM: Rod and cone receptor mechanism in typical and atypical achromatopsia . Vision Res 1:62-107, 1961.Crossref 3. Goodman G, Ripps H, Siegel IM: Cone dysfunction syndromes . Arch Ophthalmol 70:214-230, 1963.Crossref 4. Linksz A: An Essay on Color Vision and Clinical Color Vision Tests . New York, Grune & Stratton Inc, 1964, p 181. 5. Fonda G: Management of the Patient With Subnormal Vision . St. Louis, CV Mosby Co Publishers, 1970, p 4. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Correction of Low Visual Acuity in Achromatopsia: Use of Corrective Lenses as an Aid to Educational and Vocational Placement

Archives of Ophthalmology , Volume 91 (1) – Jan 1, 1974

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Publisher
American Medical Association
Copyright
Copyright © 1974 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1974.03900060024006
Publisher site
See Article on Publisher Site

Abstract

Abstract The principal characteristics of achromatopsia are complete color blindness, subnormal vision, and severe photophobia. It is usually a recessive hereditary trait. The visual acuity of 80% of the patients studied ranged from 20/280 to 20/100. The incidence of strong refractive errors ranged from 4.50 to 10.00 D in 38% of the patients. Reading additions of +4.00 to +16.00 D were prescribed in 13 cases, and 94% of the prescriptions were judged to be successful. Severe photophobia was mitigated by lenses that transmit 19% of the visible spectrum. Followup showed that the majority of the children were able to read regular type in a normal educational setting, and none had to resort to reading large type or braille. References 1. Goethlin GF: Congenital red-green abnormality in colour vision and congenital total colour blindness from the point of view of heredity . Acta Ophthalmol 2:15-34, 1924.Crossref 2. Blackwell HR, Blackwell OM: Rod and cone receptor mechanism in typical and atypical achromatopsia . Vision Res 1:62-107, 1961.Crossref 3. Goodman G, Ripps H, Siegel IM: Cone dysfunction syndromes . Arch Ophthalmol 70:214-230, 1963.Crossref 4. Linksz A: An Essay on Color Vision and Clinical Color Vision Tests . New York, Grune & Stratton Inc, 1964, p 181. 5. Fonda G: Management of the Patient With Subnormal Vision . St. Louis, CV Mosby Co Publishers, 1970, p 4.

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Jan 1, 1974

References