EnChroma: Difference between revisions
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Explaining the aronym CVD, which is used all over the article. |
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'''EnChroma lenses''' are [[glasses]] which claim to improve color vision in people who are [[color blind]]. The limited evidence is that they do not improve color vision.<ref name=Go2018>{{cite journal |last1=Gómez-Robledo |first1=L |last2=Valero |first2=EM |last3=Huertas |first3=R |last4=Martínez-Domingo |first4=MA |last5=Hernández-Andrés |first5=J |title=Do EnChroma glasses improve color vision for colorblind subjects? |journal=Optics Express |date=29 October 2018 |volume=26 |issue=22 |pages=28693–28703 |doi=10.1364/OE.26.028693 |pmid=30470042|hdl=10481/57698 }}</ref><ref>{{cite journal |last1=Martínez-Domingo |first1=MA |last2=Gómez-Robledo |first2=L |last3=Valero |first3=EM |last4=Huertas |first4=R |last5=Hernández-Andrés |first5=J |last6=Ezpeleta |first6=S |last7=Hita |first7=E |title=Assessment of VINO filters for correcting red-green Color Vision Deficiency. |journal=Optics Express |date=24 June 2019 |volume=27 |issue=13 |pages=17954–17967 |doi=10.1364/OE.27.017954 |pmid=31252746|hdl=10481/57382 }}</ref> |
'''EnChroma lenses''' are [[glasses]] which claim to improve color vision in people who are [[color blind]] (also referred to as color vision deficient – CVD). The limited evidence is that they do not improve color vision.<ref name=Go2018>{{cite journal |last1=Gómez-Robledo |first1=L |last2=Valero |first2=EM |last3=Huertas |first3=R |last4=Martínez-Domingo |first4=MA |last5=Hernández-Andrés |first5=J |title=Do EnChroma glasses improve color vision for colorblind subjects? |journal=Optics Express |date=29 October 2018 |volume=26 |issue=22 |pages=28693–28703 |doi=10.1364/OE.26.028693 |pmid=30470042|hdl=10481/57698 }}</ref><ref>{{cite journal |last1=Martínez-Domingo |first1=MA |last2=Gómez-Robledo |first2=L |last3=Valero |first3=EM |last4=Huertas |first4=R |last5=Hernández-Andrés |first5=J |last6=Ezpeleta |first6=S |last7=Hita |first7=E |title=Assessment of VINO filters for correcting red-green Color Vision Deficiency. |journal=Optics Express |date=24 June 2019 |volume=27 |issue=13 |pages=17954–17967 |doi=10.1364/OE.27.017954 |pmid=31252746|hdl=10481/57382 }}</ref> |
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== Evidence == |
== Evidence == |
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An experiment involving 25 males aged from 20 to 25 years. Two of those 25 were excluded because of a vision disease that may affect the CVD |
An experiment involving 25 males aged from 20 to 25 years. Two of those 25 were excluded because of a vision disease that may affect the CVD.<ref name=":22">{{Cite web|url=https://commons.pacificu.edu/opt/21|title=Assessment of EnChroma Filter for Correcting Color Vision Deficiency|author1=Almutairi, Nawaf |author2=Kundart, James |author3=Muthuramalingam, Naganathan |author4=Hayes, John |author5=Citek, Karl |author6=Aljohani, Saad |date=2017|website=Pacific University|access-date=24 November 2018}}</ref> They tested whether the glasses helped people with particular deficiencies improve the way they see colors. The study involved ten individuals with [[Heredity|hereditary]] deficiencies (nine males and one female from age 19 to 52).<ref name=":22" /> The EnChroma Cx-14 filters did not significantly influence the vision of CVD subjects but, for two of them, the error score was improved.<ref name=":22" /> |
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In 2018, a study of EnChroma lenses proved that they merely helped color blind people to see the same colors in a different way since the colored filter altered the way colors appeared in their eyes.<ref name=":1" /> |
In 2018, a study of EnChroma lenses proved that they merely helped color blind people to see the same colors in a different way since the colored filter altered the way colors appeared in their eyes.<ref name=":1" /> |
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Revision as of 04:47, 29 May 2020
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 The glasses: Special lenses filter out the different mixes of colors, such that people with Color Vision Deficiency can see them differently | |
| Manufacturer | EnChroma |
|---|---|
| Website | https://enchroma.com/  |
EnChroma lenses are glasses which claim to improve color vision in people who are color blind (also referred to as color vision deficient – CVD). The limited evidence is that they do not improve color vision.[1][2]
Evidence
An experiment involving 25 males aged from 20 to 25 years. Two of those 25 were excluded because of a vision disease that may affect the CVD.[3] They tested whether the glasses helped people with particular deficiencies improve the way they see colors. The study involved ten individuals with hereditary deficiencies (nine males and one female from age 19 to 52).[3] The EnChroma Cx-14 filters did not significantly influence the vision of CVD subjects but, for two of them, the error score was improved.[3]
In 2018, a study of EnChroma lenses proved that they merely helped color blind people to see the same colors in a different way since the colored filter altered the way colors appeared in their eyes.[4]
The researchers found the effect of using EnChroma glasses is similar to glasses where the use of color filters changes the user's perception and increases the contrast among the colors, such as those used for shooting or hunting. The research showed that EnChroma glasses did not reveal any improvement in the Ishihara test and Farnsworth Munsell 100 hue test.[1]
Technology
The lenses focus on the most common color vision deficiency which is caused by the red and green retinal cone cells that, when responding to light, coincide. To eliminate the overlapping of the wavelengths of light, there is an optical material called a 'multi-notch' filter, is capable of removing the exact wavelengths of light in the location where it overlaps, getting a simplified differentiation of colors.[4] The glasses block specific wavelengths to create a clearer separation of different color signals so that they can be better calculated by the brain. The separation of signals allows most people with CVD to distinguish colors, but the glasses will have little to no effect on the 20% of color blind people who have severe color impairment.[5][6]
History
Glass scientist Donald McPherson invented EnChroma glasses by accident. He originally was trying to develop lens to protect surgeons during laser operations.[7]
References
- ^ a b Gómez-Robledo, L; Valero, EM; Huertas, R; Martínez-Domingo, MA; Hernández-Andrés, J (29 October 2018). "Do EnChroma glasses improve color vision for colorblind subjects?". Optics Express. 26 (22): 28693–28703. doi:10.1364/OE.26.028693. hdl:10481/57698. PMID 30470042.
- ^ Martínez-Domingo, MA; Gómez-Robledo, L; Valero, EM; Huertas, R; Hernández-Andrés, J; Ezpeleta, S; Hita, E (24 June 2019). "Assessment of VINO filters for correcting red-green Color Vision Deficiency". Optics Express. 27 (13): 17954–17967. doi:10.1364/OE.27.017954. hdl:10481/57382. PMID 31252746.
- ^ a b c Almutairi, Nawaf; Kundart, James; Muthuramalingam, Naganathan; Hayes, John; Citek, Karl; Aljohani, Saad (2017). "Assessment of EnChroma Filter for Correcting Color Vision Deficiency". Pacific University. Retrieved 24 November 2018.
- ^ a b University of Granada (29 October 2018). "Scientists debunk the effectiveness of EnChroma glasses for colorblind people". Phys.org. Retrieved 23 November 2018.
- ^ Diane, Kelly; Maddie, Stone (11 July 2015). "Can These Glasses Help the Colorblind? We Put EnChroma to the Test". Gizmodo. Retrieved 29 November 2018.
- ^ Bettenhausen, Craig (6 February 2017). "Experimenting with EnChroma's color-blind assistance glasses". Chemical & Engineering News. 95 (6): 80. Retrieved 30 November 2018.
- ^ Martin, Claire (15 August 2015). "EnChroma's accidental spectacles find niche among the colorblind". The New York Times. Retrieved 8 November 2018.