#deuteranomal

[bjlsc1o5c]

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#spiderlet #hatable #curassows #NEbE #cosily #incalculability #americana #deuteranomal #Berman #confirmation's #glowed #entete #brunnete #reunfold #bathochromatism #vassalism #souls #quarter-yearly #excedent #frater

[faerabbit]

TordEdd headcanon:

Edd is a tetrachromat, while Tord is colour blind (specifically deuteranomal). Edd can see more colours than most, while Tord sees less.

This leads to Edd acting as Tord's (colour) eyes, painting him a vivid world around him, one that even Tom and Matt cannot discern. Edd colours his world, both figuratively and literally.

#shipsworld #tordedd #eddtord #coloredd au #that's it's name now #this leads to the fun situation where tord can't actually tell what colour his hoodie is #initially wrote more but i didn't like how it sounded #so i cut it out :\ #this still feels a wee bit ableist so i might change it later

[academicstrive]

Prevalence of Congenital Color Vision Deficiency among Secondary School Students in Butajira Town, Ethiopia

Authors: Rabawit H Amare* and Samson B Tassew

Abstract

Background: Color vision refers to our ability to perceive colors based on spectral variations in light absorbed by the photoreceptors. Color blindness or color vision deficiency is the inability or decreased ability to perceive color differences under normal lighting condition. This is predominantly caused by inherited photo pigment abnormalities in the retina resulting in a smaller number of visible spectral hues in both eyes. Red green color vision defects are common and caused by rearrangement and deletions of genes on the X-chromosome. Color blind persons, unaware of their disability, may choose certain professions, which may not be suitable for them, like traffic policeman, train driver or technician in color industries, which require proper color perception leading to lesser efficiency in work as well as may cause accidents. Objectives: This study was conducted to find out the prevalence of color blindness among secondary school students in Butajira town, Gurage zone Ethiopia. Methods: A cross sectional descriptive study was conducted from February 18, 2019 to March 8, 2019. A total of 779 (399 male & 380 female) students with age range of 14-25 years were selected using multistage sampling technique from three secondary schools. Participants were screened for color vision deficiency by using Ishihara’s tests for color vision deficiency. Results: Among the 779 students screened for color vision deficiency, 13 of them (1.7%) were diagnosed with color blindness out of which 12 were male and 1 was female. Deuteranomally was the most frequent color vision defect detected (11, 84.6%) and protanopia was the least detected color vision deficiency with 2 cases (15.4%). All participants with color vision deficiency were not aware of their color vision status. Conclusion: Screening for color vision deficiency is potentially useful for adolescents in making carrier decisions. In our study participants were not aware of their color vision status or not informed about color vision deficiency and its impact in day to day life or future carrier performance. Therefore, we recommend early screening of children in order to help evaluate its effect in school activities and adolescence at time of entry to college in departments which require good color perception, training teachers on color vision deficiency screening to understand and help improve students’ performance in school activities, creating awareness among the society about CVD and its effects in day to day and professional life and since prevalence of CVD varies in different ethnic groups further studies in other parts of the country may help to identify areas to focus on in the future.

Keywords: Ishihara’s Tests; Photoreceptors; Fundoscopy, Blindness

Journal Name: Journal of Ocular Sciences and Ophthalmology (JOSO)

Article Type: Research Article

#academic strive #open access journal #publishing #research

[d-ama-ien]

I’ve seen people point out that you shouldn’t be rude about Jack’s issue with the buttons because he is color blind (good people), and I’m incredibly disappointed at the people I’ve seen saying in response “he’s only red-green color blind so he just wasn’t focusing because the problem was with green and yellow” (bad people)

Google exists so I shouldn’t have to explain how color blindness works when you could easily look it up, but: being color blind affects how you see all colors. I’m not sure which exact type Jack has but there are four ways of being red-green color blind, each way differing how you see color based on which color cone is missing/mutated. The most common form of red-green color blindness  is called Deuteranomaly, which affects 6% of men. 

Here’s an excerpt from Wikipedia describing how this form of color blindness affects vision: “deuteranomates are poor at discriminating small differences in hues in the red, orange, yellow, green region of the spectrum. They make errors in the naming of hues in this region because the hues appear somewhat shifted towards green.“ (that’s also just an example of one type, again all types affect multiple colors)

So, yes, Jack’s color blindness can actually affect his ability to differentiate between colors other than just red and green. You assholes have the internet and could look it up yourselves instead of being dicks.

Also this website has a color vision simulator that allows you to view an image in “normal vision” and then in “color blind” vision- there’s an image that is green and yellow so you can see examples of all four types of red-green color blindness. Spoiler: all four types of red-green color blindness make it harder to differentiate the two colors.

#i'm so fucking mad at the numerous people i've seen saying that bullshit #know what you're talking about before being an asshole #jacksepticeye #sean mclachlan #youtube #also maybe don't be fucking rude anyways?? #it doesnt fucking matter. why be an ass to sean bc he fucked up button pushing? #do you people have nothing better to do? #also a close friend of my is color blind that's why i'm v touchy about people being uneducated but acting like they know it all bc #of the naming of the types #again the internet is a helpful resource that can teach you a lot #so you can google something before you say something stupid