Ishihara Test Chart Book, for Color Deficiency

by Ishihara

Product Features

• For congenital & red/green color blindness
• Color plates encased in album-type books
• 10, 14, 24 & 38 plate options
• Instructions included

Product Description

Size: 38 Plate Book

Color Blindness Test Official Ishihara Color Blindness Test The Official Ishihara Color Blindness Test developed for color vision testing. Unlike the Ishihara patterns that may be found online and viewed over a computer monitor, this color vision test is designed to produce accurate test results in determining color blindness and the degree of color blindness. Since color reproduction may vary from computer monitor-to-computer monitor, the best and most accurate method of testing for color blindness still comes from official Ishihara album-type books. Unless the computer monitor display administering the test is capable of CRT ICC calibration and regularly degaussed and recalibrated, accurate color and test results may not be possible. Additionally, home printed versions of the test may yield inaccurate results due to variation in ink cartridge color. Printing of Ishihara color tests should only be done on imaging devices accurately calibrated to CMYK or Pantone color charts. The Official Ishihara Color Blindness Test is accepted by leading authorities as a simple and accurate method for discovering congenital color blindness and red-green blindness in both complete and incomplete forms. Also known as Protanomaly and Deuteranomaly, "red-weakness" and "green-weakness", respectively, are the two most common types of color deficiency. It is said that 1 out of 100 males are subject to "red-weakness" and approximately 5 out of 100 males are subject to "green-weakness". In a test, those suffering from red-weakness fail to see the color red with the same power ( saturation or depth of color ) as a normal observer. It is said that Males, in general, experience color blindness at the rate of 12 in 100 while color blind females reportedly test at a rate of 1 in 200. With this color blindness test, you will be able to test for not only Protanomaly and Deuteranomaly, but Dichromasy, Protanopia and Deuteranopia. Testing for color blindness is important. The responsibility of a

Product Details

• Item Weight: 1 pounds
• Shipping Weight: 4 pounds (View shipping rates and policies)
• ASIN: B000FLTQ04
• UPC: 717076037990
• Average Customer Review: 3.5 out of 5 stars  See all reviews (4 customer reviews)
• Amazon Best Sellers Rank: #110,919 in Health & Personal Care (See Top 100 in Health & Personal Care)
  • #32 in Health & Personal Care > Health Care > First Aid > Braces & Supports > Slings

Customer Reviews

Most Helpful Customer Reviews

5.0 out of 5 stars Perfect, September 12, 2011

By 

Maria Ines Salgado "computer" (California and Brazil) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Ishihara Color Blind Test Chart - 10 Plate Unlettered (Illiterate) - 12571257

I was very pleased with the purchase. The Sellers is correct. I received on time and in perfect condition. I recommend!
Grafco Ishihara Test Chart Book, for Color Deficiency, 10 Plate Book (Unlettered Persons and small), 1/Ea, GHF1257

3.0 out of 5 stars Mediocre, February 10, 2008

By 

B. Gabriel (CT) - See all my reviews
(REAL NAME)   

Product is ok if you are looking for a quick reference. I ended up returning it because it would not withstand the frequent use that will be required of the test.

1 of 2 people found the following review helpful:

5.0 out of 5 stars Ishihara Test Book, August 7, 2008

By 

Mary E. Sheehan (usa) - See all my reviews
(REAL NAME)   

This review is from: Official Ishihara Color Blindness Test - Options 38 Plate (Health and Beauty)

The product was received in a prisine and timely manner and met all my expectations. I would endorse using this service again.

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