Color blindness expresses itself in different ways, and rarely is a person totally color blind.There are two kinds of people in this world - those who like to be surprised and those who like to wait for what they know is going to happen.
spc Bd 1 Bd 3
 
Share This Page

Color Blindness

Color blindness expresses itself in different ways.  Rarely is a person totally color blind.

 

There are many kinds of color blindness as illustrated in this chart. Men are much more likely to be color blind than women.

 

Type of Vision Deficiency Percent of Males Percent of Females
Deuteranomaly

Difficulty distinguishing between greens, reds, oranges and yellows

Difficulty distinguishing between blue, violet, purple, lavender

Green looks black in low light

No abnormal dimming
4.9
0.38
Deuteranopia

Unable to distinguish red, orange, yellow and green

Unable to distinguish blue, violet, purple, lavender

No abnormal dimming

1.1
0.01
Protanomaly

Reds look darker than they are, may look black

Difficulty distinguishing red, orange, yellow and green

Difficulty distinguishing blue, violet, purple, lavender

Brightness of red, orange, yellow is quite reduced
1.0
0.02
Protanopia

Reds
look darker than they are, may look black

Unable to distinguish red, orange, yellow and green

Unable to distinguish blue, violet, purple, lavender

Brightness of red, orange, yellow is quite reduced
1.0
0.02
Tritanomaly

Difficulty distinguishing blues and yellows
~0
~0
Tritanopia

Unable to distinguish blues and yellows
0.002
0.001
Cone monochromatism

Total color blindness caused by a having only one cone type.
~0
~0
Rod monochromacy

Total color blindness caused by a having no cone cells.
0.003
0.002
Total
8.0
0.4

 

Read more about color blindness.

Home Facts and Fiction Resolution Color and Eyesight    Benhams Disk    Chromatic Adaptation    Chromostereopsis    Color Blindness    Color Discrimination    Color Sensitivity    Gender Differences    Metamerism    Trichromatic Theory Eye Color Peripheral Vision Blind Spot Night Vision Aging Effects Hold Time Timing

Test your Skill

Test your skill with a computer mouse by clicking as many boxes as you can in 15 seconds.

Send Us Your Comments The Site Map Link To Our Site Tell A Friend About Us Related Links Report A Broken Link Contact Information

Are you concerned about vitamin d deficiency? See us for natural health supplements.






Choose from a variety of Credit Card Balance Transfer Offers  with 0% APR.






Magnet therapy is part of helpful holistic medicine. Magnet therapy is part of a holistic approach to pain relief and pain management. See us.
B7
 
Eye-Therapy.com

DISCLAIMER:

The information published here is for entertainment purposes only and is in no way intended to dispense medical opinion or advice or to be a substitute for professional medical care, be it advice, diagnosis or treatment, by a medical practitioner. If you feel ill or if you have a medical issue, you should consult a health care professional.

Site Map | Terms of Use | Privacy & Security | Contact Us | Purchase Agreement | Send Feedback
Vision and The Science of Seeing
© 1996-2005 by Eye-Therapy.com All Rights Reserved.