COLOR BLINDNESS What Does It Look Like?

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COLOR BLINDNESS What Does It Look Like? Ever wondered what the world looks like to people with color blindness? Curious minds often wish to see through the eyes of others. Check out the photos below to better understand and empathize with fellow travelers in life. Normal Vision As designers, we have special interest in color blindness — more correctly called “Color Vision Deficiency” and more properly called Dyschromatopsia — as we work daily with colors. We can better provide for those with color vision deficiencies by taking it into consideration as we design our websites, ads, illustrations, logos, typography or any visual communications. Protanomaly Protanopia Photos Show Vision Types Photos below show types of color blindness accessed on the ColorJack “Vision” menu: The less severe type, Anomalous Trichromacy, includes: • Protanomaly - reds appear weak • Deuteranomaly - greens appear weak • Tritanomaly - very rare, blues appear weak Deuteranomaly Deuteranopia The moderately severe type, Dichromacy, includes: • Protanopia: reds are greatly reduced • Deuteranopia - greens are greatly reduced • Tritanopia - rare; blues are greatly reduced The most severe type, Monochromacy, is very rare: all, or most, color vision is lacking: Rod Monochromacy (Achromatopsia) and Achromatomaly. The “Customaly” option offers the opportunity to Tritanomaly Tritanopia create your own custom vision deficiency! :o) Causes of Color Blindness Color blindness is usually passed on at birth, but can come about through illnesses or accidents. Causes are generally related to the eye’s retinal cones being defective or absent. Explore deeper into color blindness at Wikipedia, U of I Eye Center, and Health A to Z. —BD Achromatomaly Achromatopsia.

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Ametropia and Emmetropization in CNGB3 Achromatopsia
Retina Ametropia and Emmetropization in CNGB3 Achromatopsia Mette Kjøbæk Gundestrup Andersen1 and Line Kessel1,2 1Department of Ophthalmology, Copenhagen University Hospital, Rigshospitalet-Glostrup, Glostrup, Denmark 2Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark Correspondence: Mette K.G. PURPOSE. Emmetropization is the process of adjusting ocular growth to the focal plane Andersen, Department of in order to achieve a clear image. Chromatic light may be involved as a cue to guide Ophthalmology, Copenhagen this process. Achromats are color blind and lack normal cone function; they are often University Hospital, described as being hyperopic, indicating a failure to emmetropize. We aim to describe Rigshospitalet-Glostrup, Valdemar the refraction and refractive development in a population of genetically characterized Hansens Vej 1-23, 2600 Glostrup, Denmark; achromats. [email protected]. METHODS. Refractive error data were collected retrospectively from 28 medical records CNGB3 Received: August 23, 2020 of c.1148delC homozygous achromats. The distribution of spherical equivalent Accepted: January 18, 2021 refractive error (SER) and spherical error was analyzed in adults. The refractive develop- Published: February 9, 2021 ment in children was analyzed by documenting astigmatic refractive error and calculating Citation: Andersen MKG, Kessel L. median SER in 1-year age groups and by analyzing the individual development when Ametropia and emmetropization in possible. CNGB3 Invest achromatopsia. RESULTS. The distribution of SER and spherical error resembled a Gaussian distribution, Ophthalmol Vis Sci. 2021;62(2):10. indicating that emmetropization was disturbed in achromats, but we found indication of https://doi.org/10.1167/iovs.62.2.10 some decrease in SER during the first years of childhood.
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