Protanopia
| Classification according to ICD-10 | |
|---|---|
| H53.5 | Color vision disorders - protanopia |
| ICD-10 online (WHO version 2019) | |
Under Protanopie (from ancient Greek πρώτος Protos , German , the first ' , according to Helmholtz first receptor of the trichromatic visual apparatus) is the Rotblindheit and protanomaly understood Rotsehschwäche. It is a genetically caused color ametropia . In people with protanopia, red and green cones no longer differ in their color response. Protanopes therefore only have two instead of three different types of cones. In men, about 1% protanopia and 1% protanomaly are affected, in women 0.01% protanopia and 0.03% protanomaly. In the short-wave range they (like those with healthy colors) see a deep blue, in the medium-wave range gray (neutral point at 492 nm), in the long-wave range a deep yellow. Is caused by mutations in OPN1LW - gene coding for the red-sensitive opsin encoding that portion of the red Iodopsins is. Usually the cones contain a defective iodopsin for the perception of red, which means that the neutral point does not differ (protanopia) or only slightly (protanomaly) from the one in the green cones.
See also
- Color blindness
- Ametropia - overview of deviations from normal vision
- Deuteranopia - green blindness
- Tritanopie - Blue blindness
- Red-green poor eyesight
literature
- SS Deeb, S. Kohl: Genetics of Color Vision Deficiencies . In: Bernd Wissinger, Susanne Kohl, U. Langenbeck (ed.): Genetics in ophthalmology (= W. Behrens-Baumann [ed.]: Developments in Ophthalmology . Volume 37 ). Karger, Basel a. a. 2003, ISBN 3-8055-7578-5 , pp. 176 ff ., urn : nbn: de: 101: 1-2015020924268 (English).
- Protanopia. In: Online Mendelian Inheritance in Man . (English).
Individual evidence
- ↑ Olaf Hochmuth: Green vision weakness (deuteranomaly). In: informatik.hu-berlin.de. October 24, 2012, archived from the original on June 25, 2015 ; accessed on July 12, 2018 .
