What is A Color Blindness

Color-blindness is that the inability to differentiate the differences between certain many colors. This condition results from an absence of color-sensitive pigment in the cone cells of the retina, the nerve layer at the rear of the eye.

Most color vision issues are inherited and are present at birth. approximately 1 out of 11 males and 1 out of 200 ladies in the world are color blind. There are different causes of people getting color blindness. For the majority of people with deficient color vision the condition is genetic and has been inherited from their mother, although some people can become color blind as a results of other diseases like diabetes and multiple sclerosis (MS) or they acquire the condition over time due to the medication, aging process, etc.

on the left is a color picture that is seen by people with normal vision, while on the right is what will be seen by people with color blindness disease.

What does a people with color-blind see?

A person with color-blindness has trouble seeing red, green, blue, or mixtures of those colors. the most common type is red-green color-blindness, wherever red and green are seen as the same color.

The most people with color blind are able to see things as clearly, but they unable to fully see the different colour of green, red or blue light. There are many different types of color blindness and there are have one extremely rare cases where people with this disease are unable to see any colour at all.

The common form of colour blindness is known as red/green colour blindness and most patients with colour blindness suffer from this. For example, a red/green colour they are will confuse a blue and a purple because colour-blind people can’t ‘see’ the red element of the colour purple.

Simple Test For Color Blindness

Here are the correct answers:

Plate 1

People with normal color vision will see the number 74.

Plate 2

People with normal color vision will see the number 6.

Plate 3

People with normal color vision will see the number 29.
People with red-green deficiencies will see the number as 70.

and for people with total color-blindness can not see any number.

Plate 4
People with normal color vision should not be able to read any number.
Most of people with red-green deficiencies will see the number 5.
and for people with total color -blindness can not see any number.