What is Colour Blindness?
Colour Blindness is also known as Colour Vision Deficiency. Colour Blindness is not a disease, it is a genetic disorder, but in some cases it can also be acquired. If a person is colour blind it does not mean he/she has poor vision. He/she can have a good eyesight but can still be colour blind. An individual diagnosed with Colour Blindness faces difficulty in recognizing certain colours. Colour Blindness is seen affecting more Males than Females.
There are 3 types of Colour Blindness;
- Red-Green Colour Vision Deficiency
- Blue-Yellow Colour Vision Deficiency
- Total Colour Vision Deficiency
Red-Green Colour Vision Deficiency:
This is the most common type of Colour Blindness. In this type of Colour Blindness the Cone Cells that are responsible for recognizing Red and Green Colours lack light sensitive pigments, because of which they are not well developed and do not function normally. Any individual who is affected with this type of Colour Blindness finds it challenging to pick out Red and Green Colours in any given situation.
Blue-Yellow Colour Vision Deficiency:
This type of colour blindness is less common than Red-Green Colour Deficiency. In this type of Colour Blindness the Cone Cells that are responsible for recognizing Blue and Yellow colours also lack light sensitive pigments, because of which they are not well developed and do not function normally. The individual trying to understand the colour Blue, often misidentifies it with Green and misidentifies Yellow with Violet.
Total Colour Vision Deficiency:
This is the rarest and more severe type of Colour Blindness. In this type of Colour Blindness the individual cannot distinguish between any colours at all. None of the Cone Cells responsible for colour assessment respond to colour, hence allowing the individual to only see Black, White and Grey.
Causes of Colour Blindness:
The human eye comprises of two types of photoreceptors; Rod Cells and Cone Cells. There are more than six million cone cells in the eye, most of which is concentrated in the Macula (centre most part of a thin layer of tissue called Retina). Cone Cells are responsible for Colour Vision. Cone Cells help in colour identification whereas Rod Cells help to see in low-light (especially at night).
Colour Blindness is usually genetically caused i.e. most people are born with it. But, it can be acquired too. When a person is genetically colour blind, at least one or more cone cells do not function properly enabling him/her to not identify different shades of Red, Green, Blue or Yellow.
However, Colour Blindness can be acquired too. Many serious eye diseases like Age-Related Macular Degeneration, Diabetic Retinopathy, Glaucoma, Optic Atrophy etc. can cause hindrance in the functioning of the cells which can lead to a person becoming colour blind.
Symptoms of Colour Blindness:
Most of the times the symptoms of colour blindness can be so mild that they can go unnoticed. A few symptoms that are commonly seen are:
- Difficulty in distinguishing between colours
- Difficulty in distinguishing shades of the same or similar colours
These signs can scale from mild to severe depending on the type of colour blindness.
Treatment of Colour Blindness:
There is no treatment for colour blindness in the conventional allopathic world. Sanjeevan For Perfect Eyesight is the only Eye Care Centre in the world that provides treatment for Colour Blindness.The treatment was successfully developed after intensive research and development performed by Dr. K.K Goyal and Dr.Suman Goyal over a period of 15years.
The colour blindness treatment procedures at Sanjeevan are developed in such a way that they retain the entire visual system, viz., the lens, cone cells, ciliary muscles, retina, optic nerve and the brain to help it improve itself so as to treat Colour Blindness and also improve visual perception.