Ishihara Test Chart Books for Color Deficiency 38 Plates with User Manual and One Eye Occluder by KASHSURG
Asin: B00Q4B8VI2
As an Amazon Associate we earn a fee from qualifying purchases when you follow a link to Amazon from this page. We rank the products, but the links to Amazon are promotional.Hidden Digit Design: Only Colorblind People Are Able To Spot The Sign. If You Have Perfect Color Vision, You Won’T Be Able To See It..
Classification Design: This Is Used To Differentiate Between Red- And Green-Blind Persons. The Vanishing Design Is Used On Either Side Of The Plate, One Side For Deutan Defects An The Other For Protans..
Transformation Design: Color Blind People Will See A Different Sign Than People With No Color Vision Handicap..
Features
- Vanishing design: Only people with good color vision can see the sign. If you are colorblind you won t see anything.
- Transformation design: Color blind people will see a different sign than people with no color vision handicap.
- Hidden digit design: Only colorblind people are able to spot the sign. If you have perfect color vision, you won t be able to see it.
- Classification design: This is used to differentiate between red- and green-blind persons. The vanishing design is used on either side of the plate, one side for deutan defects an the other for protans.
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Brand: KANEHARA | Manufacturer: JAPAN
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