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Cones and Rods

Cones and Rods
  • #: 221728
  • Price: free ($0.00) In Apple Store
  • Category: Utilities
  • Updated: 2009-06-14
  • Current Version: 1.0
  • 1.0
  • Size: 0.80 MB
  • Language: English
  • Seller: William sackfield
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 2.2.1 or later
  • © iWillApps 2009
  •  Add to Favorite apps



Cones and Rods is an application that tests, simulates and corrects colour vision.

This application can not only determine whether you currently suffer from colour blindness, it can also determine what type of colour blindness you suffer from.

You can see the world from the eyes of the colour blind using the simulator, you can simulate colour blindness on any deficiency type using either any photo in your photo library or the iPhone's camera. The following colour blindness deficiencies are supported:

- Protanopia/Protanomaly (Red Deficient)

- Deuteranopia/Deuteranomaly (Green Deficient)

- Tritanopia/Tritanomaly (Blue Deficient)

- Achromatopsia/Achromatomaly (Monochromacy)

The correction function allows colour blind people to accurately identify colours by converting hues to there more basic levels. This allows colour blind people to accurately identify numbers in Ishihara tests and other real world situations. The following colour blindness deficiencies are supported:

- Protanomaly (Red Deficient)

- Deuteranomaly (Green Deficient)

- Tritanomaly (Blue Deficient)

Note to iPod Touch users: You will not be able to access the Camera views, and will only be able to simulate/correct colour vision using your Photo Library.

iPhone Screenshots

Cones and Rods iPhone Screenshot 1
Cones and Rods iPhone Screenshot 2

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Rated 5/5 based on 2 customer reviews.


5/5 stars

Cool idea!

I downloaded this for my brother as he is color blind, just wanting to see how it worked with a color blind person.

He found it an interesting app to play with to test his levels of color blindness.
I guess it could also could be used to help distinguish colors, but it gave me a real hands on idea of how it does look to be color blind.

5/5 stars

Pretty Cool

i have green deficient colorblindness and people are always asking what i can and can not see, and they have difficulty understing, but with this app i can show them the test dots i can and cant read, and i can use the simulator with my camera and show how things look to me. pretty useful for me


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The information may be outdated (2011-04-27 23:55:36). For actual information go to iTunes

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