What is color blindness?
Color blindness is a condition in which the ability to differentiate between certain colors is normal. This means that a person with color blindness will have difficulty seeing red, green, blue, or a combination of these.
The ability to see colors is rarely lost. Many people believe that only black and white colors can be seen in a color blind person. This is a misunderstanding. There are many different types and degrees of color blindness.
According to studies, color blindness occurs in 8% of men and 0.5% of women.
How do you gray color blind test for color blindness?
There are many ways to gray color blind test for color vision impairment, but the Covisn plate gray color blind test is a common method. This will gray color blind test for red-green blindness. This gray color blind test is most likely used for regular color vision in government, schools, or medicine.
The Covisn gray color blind test contains 38 round plates made up of unique random points of many colors. The person is shown the location and asked which number should appear on the sign.
Some signs contain information that people with normal color blindness can see. On the other hand, other signs contain information that only people with color blindness can understand or see.
A diagnosis of color blindness is made when a person makes mistakes during the gray color blind test. Special plates are used to diagnose color blindness in children.
Types of colored tiles in the gray color blind test
- Demonstration Board – The demonstration board is the first board with the number “12” in the Covisn gray color blind test and can be “16”. This demo board can be viewed by anyone with or without normal color vision. It is used for display purposes only and is not included in the screening score.
- Transformation tables – People with normal color vision can distinguish different shapes or numbers from people with color vision disorders.
- Disappearing license plates – only people with normal color vision can see the lost license plates. This means that the shapes or numbers on the signs are not visible to people with color vision problems.
- Hidden License Plates – The numbers and numbers on these license plates are only visible to those with color visual impairments.
- Diagnostic Panels – These panels help diagnose the type and severity of the color vision disorder protanopia (lack of red) or deuteranopia (lack of green).