Color blindness is the condition, which is usually described as a lack of, which prevents the sufferer from the distinction of color, which can distinguish the population. The gene that causes the id of the dominant male and it is rarely developed State. Only females are prone to color blindness, where the mother and father are carriers of the gene. In Britain it influence between seven and eleven percent of men, although statistics are not entirely clear how many of the affected color blindness is never diagnosed.
Opticka diagnosis for it may with a series of simple tests. Usually the color blindness tests shall be carried out of optics such as systematic test view on children. Adult would probably have to ask for a test carried out tests for it are not usually included as routine eye examinations for pert, through adolescence.
The most common deficiencies in those who suffer from color blindness is the inability to distinguish colors, green and red. Another rare form of is the inability to clearly define the color blue; It is clear in less than 5% it affected and can be found just as often in women as in men.
The Test is used to test the show was developed in 1917 by Dr. Shinobu Ishihara. Ishihara test consists of a series of plates, each of which incorporate the image seemingly randomly placed dots of various sizes and shades. A person with normal color vision would be able to see the number in the image, which should be in a contrasting shade in the background. People who suffer from it was ever to see a number, or will have trouble spotting, inter alia, the colored dot. There are thirty-eight boards or images, which are used in the experiment, each varying in difficulty.
For the school children a year ago it was considered that the test was not sufficient for the diagnosis of the optics for the certainty that the child knew their activities so that the numbers could get accurate information. The Test was developed for children ages three to six is in accordance with the original Test color Ishihara, but uses easily recognizable shape frames as stars, circles and squares to determine whether a child is able to distinguish colors.
Anyone who suspects that their child suffers from it themselves, or should an appointment with opticka through a series of quick and easy tests. Although there is no cure for it, you can make the changes to facilitate the life of disabled people. Printing on paper that is not white or by changing the settings on the computer monitor can facilitate small tasks, which are used to difficult a lot.
Author specializes in writing about eye tests and eye problems, and stresses the importance of optics for good care for your eye to the visit.
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