Colour blindness Is Identified In A Significant Proportion Of The Population But There Is No treatment As The Issue Is Caused By An Inherited Genetic Flaw

Colour blindness (also called Colour vision Deficiency) is one of those health problems which virtually everyone has heard of. It is, as the name infers, the inability to recognise and distinguish between particular colours. It is caused by a faulty gene in the X chromosome and is far more often identified in males than females, although it is known that a mother can inherit the faulty gene and transmit it to her offspring.

A very small number of females do suffer from colour blindness, but the figure is only roughly 0.5% of the population as opposed to instances of males who suffer from the problem which is claimed to be somewhere between eight to ten percent of the population, depending on which surveys you believe.

The most regular kind of colour blindness is that where red and green are difficult to perceive, or the sufferer finds it hard differentiating between shades of red, green, brown and orange. A rare type of the complaint causes problems with the identification of blues and yellows, and an even rarer variant means that the sufferer will not see colour at all and instead lives in a black and white world.

The odd thing is that the problem itself is totally harmless (though it may justify some of those dodgy outfits spotted on a night out!) and it doesn’t generally have any other unpleasant impact on the overall quality of the sufferer’s eyesight. Of course, someone who has colour blindness could also be short or long sighted, and whilst corrective lenses or Laser eye surgery may fix that problem, it will have no effect at all on the individual’s ability to view colours correctly.

The fact that the problem is not harmful and has no other impact on the sufferer means that there are possibly quite a number of people out there who don’t even realise that they suffer from it, until they have some reason to get their eyes checked. For example, there are some occupations where colour blindness can cause major difficulties and for a number of quite obvious reasons some organisations may exclude those who suffer. The Royal air Force in the UK has a strict policy of requiring perfect sight and no colour vision defects for their newly recruited pilots. Whilst they will employ trained pilots who later experience eye defects and let them use glasses or have Laser eye treatment to rectify the problem, anyone with colour blindness will have had the problem from birth, so sadly there is no possibility of them becoming an RAF pilot.

It may seem odd that an eye defect such as this has not been subject to research to try and find a way of correcting the vision, in particular when there are numerous treatments for other eye complaints, such as Laser eye surgery for long and short sightedness, lens removal and replacement for those with cataracts and conventional surgery to relieve the effects of glaucoma. However, these are all issues which are caused by flaws or imperfections in the workings of the eye itself, rather than a genetic fault passed from generation to generation. It therefore seems unlikely that research is likely to invent a miracle Laser eye cure or surgical treatment that can repair a defective colour identification gene.
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