Treatment of Color Blindness

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   Colour Blinds can now read Ishihara Plates Let's find out how?

Colour blindness is an inability to differentiate between different colours. Most common is red-green colorblindness. It occurs in 8% of Male and 0.4% Female. Colour blindness is usually a genetic, hereditary condition, you are born with it. Red, green and blue colour blindness is usually passed down from mother to son on the 23rd chromosome, which is the sex chromosome.

Red/Green Male/Female Male has a X and Y chromosome whereas a female has 2 X chromosome. For a male to manifest colour blindness the faulty colour blindness gene has to appear on his X chromosome. For female to manifest colour blindness, she has to have fault in both of her X chromosome.
Blue Both male and female are equally affected The defect of blue colour blindness is carried on a non sex chromosome

  Are you looking for a job / career where good colour vision is desirable but defective colour vision would not necessarily cause a handicap?

Accountant, Architect, Baker, Beautician, Botanist, Brewer, Butcher, Carpenter, Engineer, Farmer, Florist, Forester, Furrier, Coroner, Jeweller, Librarian, Tanner, Tailor, Milliner, Miner, Nurse, Dental surgeon, Manicurist, Metallurgist, Optometrist, Ophthalmologist, osteopath, Painter, Physician, Potter, Sales person (Garment, Footwear, Glass items, Linen, Cosmetics, Toiletries, Jewellery, Confectioner, Stationer, Storekeeper), Auctioneer, Clothes designer, Cook or chef, Dental technician, Draughtsman, Dressmaker, Geologist, Gemologist, Interior decorator, Interior designer, Interior planner, Grocer, Hair dresser, Horticulturist, Surgeon, Waiter, Zoologist, Physiotherapist, Bacteriologist, Confectioner, Anaesthetist, Chiropodist, Diamond grader, Illuminating Engineer, Instructor of driver, Fishmonger, Gardener and landscape gardener, Media industry (Lighting director of stage show, film, T.V, Beautician of stage show, film, T.V, Pharmacist assistant, Post office counter assistant, Shoe repairer - cobbler, Telephone switchboard operator, Theatre props manager, Stage props manager, Window dresser, Driver in public service - bus driver, Builder/Brick Layer, Buyer - textiles, yarn, tobacco, food e.g fruit, Cocoa, timber, Carpet/Lino fitter, planner, Precious stone setter)

Recommended colour vision requirement in ceramic
Recommended colour vision requirement in Chemical Laboratory Analysis
Perfect colour vision Good colour vision
Sorters Transport staff
Chemical analyst Electrician


Recommended colour vision requirement in metal industry
Perfect colour vision Good colour vision
Metallurgist Geologists


Recommended colour vision requirement - Jeweller / Gemologist / Diamond Grader
Perfect colour vision Good colour vision
  • Jeweller
  • Gem Graders
  • Pharmacist
  • Key personnel in pharmaceutical production jobs.
  • Laboratory pathological technicians.
  • Industrial Chemist
  • Bacteriologist
  • Medical technician
  • Laboratory Assistant
  • Quality control chemist


Recommended colour vision requirement in Medical professions/Nursing/AlliedProfession
Perfect colour vision Good colour vision
All of them need perfect colour vision  


Recommended colour vision requirement in paint industry/Printing Ink Industry
Perfect colour vision Good colour vision
Paint sprayer
Paint matcher
Paint buyer
Paint quality control personnel
Production staff
Laboratory staff
Colour matcher


Recommended colour vision requirement in Dyeing industry
Perfect colour vision Good colour vision
Textile chemist
Bobbin winder
Quality staff
Technical Manager
Warehouse staff
Laboratory staff


Recommended colour vision in Engineering
Perfect colour vision Good colour vision
Cable Joiners
safety Officer
Assembly of circuit board
Colour TV mechanics
Motor Mechanics
Gas fitter
Rack wire men
Telephone installer
Telephone operators
Switchboard operators
Various Engineer
Electronics technician


Recommended colour vision requirement in Fashion Industry
Perfect colour vision Good colour vision
Production staff of Cosmetic industry
Cosmetic sales person
Hair dresser


Recommended colour vision requirement in Agriculture Industry
Perfect colour vision Good colour vision
Grader of fruits
Grader of vegetables
Hair dresser


Recommended colour vision requirement in Fine Arts
Perfect colour vision Good colour vision
Graders of hand-painted porcelain
Buyer who selects the raw materials
Quality control personnel
Quality control inspector
General production personnel
Commercial artists
Art teacher


Recommended colour vision requirement in Food and Drink industry
Perfect colour vision Good colour vision
Cook, Chef
Baker, Butcher
Barmaid, Barman
Green groccer
Industrial foreman, packing staff
Laboratory staff
Quality control staff
Meat inspector
Industrial production staff


Recommended colour vision requirement in Leather, Wood and Furniture Industry
Perfect colour vision Good colour vision
Supervisor in timber, furniture and shoe manufacturing industry
Staff in dyeing section of leather industry
Shoe making
Shoe repairer


Recommended colour vision requirement in Leather, Wood and Furniture Industry
Perfect colour vision Good colour vision
Buyer of coloured goods and raw materials.
Quality control staffs
Brick manufaturer
Interior designer and decorator
Assistant junior brick layers or builders
Shoe repairer

Are you pursing Engineering and are you colour blind?
Are you an Engineer but facing difficulty in job placement for your colour blindness?

Are you any of these or willing to take any of these as your carrier option and are colour blind?
Electronic technician
Safety Officer
Circuit Board assembler
TV mechanic
Motor mechanic
Telephone installer
Gas fitter
Cable joiner
Rack wire men
Telephone operator
Switchboard operator


Are you colour blind and you work with resistance and capacitors and you are having any of these problems while at work?
Codes of resistors or capacitors
Colour codes of electronic components
Pairing colour coded cables and wires
Red and orange code looks identical
Confusion in between violet and yellow colour
Difficulty in distinguishing between green and brown
Difficulty in distinguishing between red and brown
Difficulty in distinguishing between green and red
Difficulty in distinguishing between green and grey
Difficulty in distinguishing between grey and brown
Difficulty in distinguishing between violet and brown
Complete failure to identify the presence of a band
Difficulty in identifying colours with matt surfaces or soiled components


  Future of Colour blinds -

In spite of talent and technical knowledge with complete expertise in the professional field many a times colour blindness becomes a barrier and first criteria for eliminating the potential individual from proving his caliber not only in airlines, railways, navy, engineering, medical, law enforcementbut at every level of entry into the professional world. Hopefully this scenario will change in near future with the advancement in the management and treatment of colour blindness.

  Probable reason for colour blindness could be -

The instruction for the development of cone cells are wrong. Cone cells might be missing or less sensitive to light. It may be that the pathway from the cone cells to the brain has not developed correctly.

  Colour detection and differentiation -

The colour are detected by cones which are of 3 types - red, green and blue. All hues can be produced by mixing red, green and blue light. Most birds are tetra chromats and around 2-2% of world's women are tetrachromats. they have the kind of 4th cone that gives a significant increase in colour differentiation.

  How to select a career with respect to colour blindness?

There are specific guidelines offered by different trade and industry. Individual company and its individual post and designation has its own specific colour related requirement. Here today you will learn more about the requirement of colour vision in different trades and industry.

  Do you think that being colour blind can be an asset?

Strange but true, being colour blind could be a boon . Colour blinds can be of great help in detecting camouflage.

  Do you know which occupations require perfect colour vision?

Armed forces, Civil aviation, Colour matcher in - Coloured paper industry, Ceramic industry, Dyeing industry, textile industry, Paint industry, Ink industry, Cosmetic industry, Navigation - Pilot, Fisherman, Railways, Carpet industry - Weaver, Spinner, Bobbin winder, Inspector in carpet industry, Electrical industry - Motor mechanic, Electrician, Electronics technician, TV mechanic, Telephone installer, Police - Not all but some grades, Radio - Telegraphy


  Colour blindness in these sectors can be hazardous due to error in colour judgement -

Air traffic controller, Car body resprayer or retoucher, Cartographer, Buyers of textiles, yarns, tobacco, timber, food items like fruit, Cocoa, Chemist and chemicals (Food chemist, Laboratory analyst, Teacher of Chemistry, Chemicals manufacturer), Polishes and oils, Ceramics - Painter, Decorator of pottery, Inspector (Quality control), Safety officer, Tanner, Tobacco grader, Colour printer, Etcher, Retoucher, Colour Photographer, Colour TV technician, Manufacturing unit of coloured pencils, chalks, paints, Paint maker and distributer, Restorer of paintings/work of art, Cotton graders, Coroner, Forensic scientist, Market grader e.g fruit, vegetable, Meat inspector, Oil refining, Paper making, Pharmacist, Plastics.

  What initiative is needed to correct these problems?

  1. Luminance clue is a beneficial way for the colour blindness. By enhancing the brightness difference between the colours is perceived.
  2. Colour defect is more noted in matt surfaces and soiled components, the use of glossy finish would overcome this problem.
  3. Bright colour and good illumination levels greatly assist the colour defect.

Resistance colour confusion made by deuteranopes Resistance colour confusion made by deuteranomalous
Colours completely missed on Colours completely missed on
Brown not seen on brown Brown not seen on brown
Red not seen on red Grey not seen on light brown
Red not seen on brown Grey not seen on brown
Green not seen on brown Red not seen on red
Grey not seen on brown Red not seen on brown
  Green not seen on brown


Are you an electrician or electronic technician and colour blind? Are you facing any of these problems?
Difficulty in wiring
Difficulty in assembly work
Difficulty in repairing an installation under diminished light


Are you having difficulty in pairing the following wires?
(Red+Blue)+(Brown+Violet) (White+Brown)+(White+Green) (Brown+Black)+(Green+Red)
((Violet+Green)+(Brown+Violet) (White+Green)+(White+Orange) (Yellow+Green)+(Yellow+Orange)
(Orange+Red)+(Orange+Green) (Green+Red)+(Green+Brown) (Violet+Yellow)+(Violet+Green)
(Yellow+Brown)+(Yellow+Green) (Red+Brown)+(Red+Green) (Red+Orange)+(Red+Green)
(Green+Yellow)+(Green+Orange) (Yellow+Orange)+(Yellow+Green) (White+Green)+(White+Orange)
(Red+Green)+(Red+Grey) (Blue+Red)+(Violet+Brown) (Violet+Orange)+(Violet+Green)

So, if you are colour blind and have not chosen Engineering as your carrier then it is advisable to choose other carrier options. All the boys who have discovered their colour blindness early are advised to avoid colour oriented careers. But still if you are determined and inspite of your being colour blind you want to choose Engineering as your career you need to go for colour blindness treatment.

  History of colour vision testing-

In 1897 first test for defective colour vision was done with the help of coloured wools. In 1912 Colour Vision testing was started in Armed Force services. In 1959 a standard was fixed for evaluating the Colour vision. Persons who must pass colour vision test and have perfect vision?

Tests done for colour vision – Ishihara test Lantem test
What is Farnsworth Lantern (FALANT) Test and what is done in this test?

Instructions –
You will see 3 lights – Red, Green and White / Yellow.
9 pair of colours will be seen for 2 seconds each.
2 lights are seen at a time in any combination.
Patient has to call the colours – top, bottom.
Interpretation -
9 pair of colour if said correctly – Pass
If you fail - Suspected

Treat Colour blindness - 6 month plan / 3 months plan / 40 days plan 
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Mail us for further query and ordering your kit. artificialeyeco@gmail(DOT)com

Driver Pilot pilot
Driver assistants Flight navigator Helicopter pilot
Trainees Flight Engineer Navy Airmen
Operators Radio officer Seaman
Traffic supervisors Air traffic controller Air traffic control officer
Signalmen Private pilots Air control officer
Traffic guard Engineering apprentices Navigating officer
Track maintenance staff    
Electrical wiring staff    

  What is color blindness?

Color blindness is a disorder characterized by the inability to distinguish colors. The term ‘color blindness’ is commonly used but it is a misleading term that implies total loss of color vision. In most cases the defect is only partial. It is more appropriate to call it as ‘color vision deficiency’. 

  Is color blindness a disease?

Color Blindness is not a disease, it is a genetic disorder.  They have difficulty with the contrast of colors. Each plate in Ishihara Test Chart Book has different shades of only two colors RED and GREEN . Color vision deficiencies have either autosomal or X-linked inheritance. The inheritance of red-green defects are also X-linked, blue-yellow defects are autosomal dominant and achromatopsia autosomal recessive. Congenital color vision defects are not associated with any pathology and patients do not have any signs and symptoms. The severity and type of deficiency is always the same in both the eyes.

  What is the concept of complementary color and how significant it is for a color blind person?

Complementary colors are pair of colors which when combined cancels each other out.

  What is the concept of wavelength in terms of color vision?

Ranging from 380nm to 740nm wavelength is visible to human eye. So if we observe the color wavelengths we would know that Red has a wavelength from 780 to 622 nm, Orange has a wavelength from 622 to 597 nm, Yellow has a wavelength ranging between 597 to 577 nm, Green having a wavelength from 577 to 492 nm, Blue ranging from 492 to 455 nm and Violet ranging from 455 to 390 nm. The human eye can perceive more variations in warmer colors than cooler ones. This is because almost 2/3 of the cones process the longer light wavelengths (reds, oranges and yellows). The maximum efficiency is 683 lumens /Watt at a wavelength of 555 nm (green).The wavelengths for when a person is in photopic vary with the intensity of light. 

  What is the ratio of color blindness as compared to normal population?

Color blindness, usually seen in males, is quite a common condition.

On an average out of every 10 person 1 is a color blind man.  Not all the people have color discrimination in their day to day life but they happen to know about their defect once they go for Ishihara test for color blindness.

  What are the causes of Color Blindness?

No true cause is known till date. We call it as a hereditary disorder as because it is carried on from one generation to the other. Many a times the person having color deficiency has no family history. Also at times it is seen that a man with color defect has children with normal color perception.   Color blindness has a relation with the cone cells present in the retina. People usually have three types of cone cells in the eye. Each type senses red, green, or blue light. You see color when your cone cells sense different amounts of these three basic colors. And any defect in the cone cells lead to color vision defect.

  What are the symptoms of Color Blindness?

Some people have difficulty in differentiating between reds and green, some people have difficulty in discriminating in between different shades of red and green. Rarely anyone sees only black, white, and gray. In so many years of seeing color deficient people I have never seen any color blind person seeing things as black, white and gray. Even total color blinds are able to see colors in their day to day life but are unable to read any page in Ishihara test plates.

  How our eye does see colors and perceive it?

Ewald Hering (1834-1918) devised the first accurate theory of color vision. We perceive color just as we perceive taste. For food we have four attributes like sweet, salty, sour and bitter similarly for color we have 3 attributes red/green, yellow or blue and brightness. Color nerves sense green or red — but never both; and blue or yellow — but never both. Ewald Hering’s color chart show how all colors arise from a combination of green-or-red, blue-or-yellow and brightness. He was the one who devised the first accurate theory of color vision. He theorized the “opponent” nature of green/red and blue/yellow. Hering expanded on the ideas of Goethe and Schoepenauer.

The human eye and brain together translate light into color. Light receptors within the eye transmit messages to the brain, which produces the familiar sensations of color. Newton observed that color is not inherent in objects. Rather, the surface of an object reflects some colors and absorbs all the others. We perceive only the reflected colors.


When different light wavelengths enter the eye, they are picked up by rods and cones and translated into chemical impulses. These impulses travel through the optic nerve into the brain. In our brain these impulses are assembled and organized on the basis of their pattern like images, movement and color.


In our eye there are 6 million cones as compared to rods which are 120 million. The retina contains three different types of color receptor cells or cones. They are: S cones – short wavelength cones or blue cones, 2% of the cone cells are for blue color, which are more sensitive to light and are perceived as blue, lack of the S cone photo pigment leads to Tritanopia. L cones – long wavelength cones or red cones, 64% of the cones cells are for red color, which are more sensitive to light and are perceived as red, and lack of the L cone photo pigment leads to Protanopia. M cones – middle wavelength cones or green cones, 32% of the cone cells are for green color, which are more sensitive to light and are perceived as green. Lack of the M cone photo pigment leads to Deutanopia . Cones lie in the centre of our retina and are essential for central, clear, crisp, colored, fine detailed vision with “High Resolution”. Cones are also less light-sensitive than rods and therefore functions best in bright light.

RYB (Red, yellow and blue are primary colors) and RGB (red, green, and blue) refers to a system for representing the colors to be used on a computer display. Our full-spectrum color vision is produced by mixing just three colors. Red, green, and blue can be combined in various proportions to obtain millions of color in the visible spectrum by changing the levels of Red, Green and Blue.

  Is color blindness gender specific?

Color Deficiency or Colorblindness occurs when cones are damaged or if they don't function properly. Women are said to be good in matching the colors and shopping for dresses for themselves and also for men essentially because amongst the total men population around 8% of men are color blind, whereas only .5% of women population has color defect. 

  What is Ishihara test?

Dr. Shinobu Ishihara from Japan produced three different test sets which are widely used and which all based on the same pseudoisochromatic plates. The Isihara Test is a set of 38 different patterns and is used to determine if impaired cones are causing a color vision deficiency. People who have healthy cones and also have full-spectrum vision will be able to tell the number in the image but all those who are colorblind will only see a circle full of dots. They will not be able to identify the numbers written.

  Does color deficiency occur in case of Age Related Macular degeneration?

Yes in cases of ARMD color vision might get affected. Damage to cones can diminish visual acuity. In case of Dry Age-Related Macular Degeneration (AMD) rods and cones deteriorate and die off. Lack of nutrition to the cone cells diminishes its ability to have clean, clear, crisp, sharp color vision. Also there is accumulation of waste matters and delayed clearing of the waste products from the cone cells which further damages the cones and accelerates their deterioration. Eventually vision loss occurs.

  What is the possibility of treating Color Blindness?

Color blindness is a wrong term, it is only deficiency. Basically so called color blind people can see colors, it’s not that they can’t see colors but yes they have problem in discriminating between similar shades of colors. But usually these people don’t address any problem in their day to day life, it’s just that when they are shown Ishihara test chart they find it impossible to read the numbers written on it. If you look at the Ishihara plate closely you will find that there are colorful dots in each page and the dots are so arranged that close by wavelength of color dots are placed in a row to confuse the brain. So the people with impaired or defective cone cells find it challenging to tell the number. Initial challenge in the treatment is we want to show a color deficient person what he is not seeing, I mean we are dealing with perception, so first question arises that unless a man can see what he is not seeing he won’t understand what he needs to see.

Let’s make it more simple, say I am telling apple is red and red is this. How will you a colorblind understand red is this, this is red color unless he is able to see it. So, at first we screen the patient and once the test is over according to our findings we give them a particular filter and first show him what he is not seeing. By this trial we come to know at the end of the treatment how well he would see with his own eyes unaided also the patients becomes happy to read the plates in just 2 minutes. After the test with filters we give them a “Color vision - Take Home Treatment” depending on their findings the treatment lasts from 40 days to 6 months. “Color vision - Take Home Treatment” is designed by keeping the requirement and scenario of the affected group.

All the people who are suffering from color deficiency are either students or working people, so for either of them it is not possible to stay at the centre for such a long duration of treatment. So, keeping them in mind the treatment is designed in such a way that they can continue their studies or profession and side by side can get themselves treated for their future prospects. The treatment is totally home based. Usually we call the patient to our centre once for 2 hours where we check the person who is color deficient and a custom made  “Color vision - Take Home Treatment” is given to them which comprises of eye exercise, oral nutritional, antioxidant medicines, eye drops and diet chart. Our cones need lot of energy to convert light into visual signals and in this process lot of debris is accumulated which impairs the color perception, we focus on clearing these debris with the help of medicines and thereby improving the color perception by reducing the stress on the cone cells. Even the cone cells need to perform autophagy which is also improved by the medicines.

  Does color vision treatment consist of any surgical method or injections given to the eye?

No, absolutely no. it is not an invasive procedure. No injection or operation is done. Its simple and easy “Color vision - Take Home Treatment” which is safe and it can be easily done by you on your own at your home.

  How much time does it take to cure color blindness?

It takes a minimum of 35 to 40 days and a maximum of 6 months depending on the age, food habit, vision, and our test findings.

  How much time do I need to exercise a day?

It depends on your visual ability and can be perfectly known after the evaluation but roughly on an average it takes 1 to 2 hours a day.

  Does the “Color vision - Take Home Treatment” need me to do physical exercise or any eye related exercise?

“Color vision - Take Home Treatment” has vision exercise. It has nothing to do with physical exercise. We don’t give any physical exercise. Ocular exercise is given. Since the eye is unable to discriminate between colors we stimulate the eyes and make it learn to see and discriminate colors depending on the defect.

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