Color blindness

What is color blindness?

Color blindness is not actually a type of blindness but it is a deficiency in the way you see colours . With this vision problem you face difficulties in dustenguish between two different colours.

Colour blindness is also known as color vision deficiency .Approximately every 1 in 12 man and 1 in 200 women is affected by it. So there is a high probability that someone who you know a neighbour or a co-student is colour blind.

The colour blindness as a vision deficiency was discovered by English chemist John  Dalton after he realized that he was colour blind himself.  In 1798 he published the first scientific paper related to this subject which was called Extraordinary facts relating to vision of color.



Most partially blind individuals can see things as obviously as other individuals yet they can't completely 'see' red, green or blue light. There are diverse kinds of visual impairment and there are amazingly uncommon situations where individuals can't see any color at all.

Type of color blindness:

There are three primary sorts of partial blindness, in view of photopigment surrenders in the three various types of cones that react to blue, green, and red light. Red-green visual weakness is the most widely recognized, trailed by blue-yellow partial blindness. A complete absence of color vision -total color blindness – is uncommon.

Protanopia and Deuteranopia: 

The diverse irregular conditions are protanomaly, or, in other words affectability to red light, deuteranomaly which is a diminished affectability to green light and is the most widely recognized type of visual impairment and tritanomaly which is a decreased affectability to blue light and is amazingly uncommon.

Visual weakness influences a substantial number of people, with protanopia and deuteranopia being the most widely recognized composes. In people with Northern European family line, upwards of 8 percent of men and 0.4 percent of ladies encounter intrinsic shading insufficiency

Tritanopia:

Tritanopia is normally caused by a hereditary transformation. In contrast to different types of visual weakness, Tritanopia isn't caused by a x-connected latent quality. That is the reason it is similarly present in guys and females. Moreover, Tritanopia can be caused by dull injury to the eye or presentation to bright light.

Monochromatic:

Monochromatic vision shading vision lack in which the individual can't recognize tints, with the goal that every one of the shades of the range show up as shades of dark. Prominently known as entire or aggregate partial blindness.