What is it
Color blindness
It is a chromatic vision disorder that is genetically transmitted (it is linked to the X chromosome) and consists of difficulty distinguishing certain colors. This dysfunction is associated with the cones, a type of photoreceptor cell in the human eye, responsible for detecting color, and which are located in the most superficial layer of the retina.
Color blindness is more prevalent in males (8% in boys and 0.5% in girls).
The classic form of color blindness is the alteration between red and green, although there are different degrees of color blindness.
Color blindness has no treatment, but it is important to detect it in the case of children, as it can influence their personal development, as well as their learning process.
Color blindness test
Color blindness is detected through different visual tests. The test most often used to diagnose it is known as Ishihara Letters.
It is a series of cards where circles appear with multiple colored dots, in which there is an inserted number that must be identified. People who have normal vision can differentiate numbers easily, while those who suffer or may suffer from color blindness have difficulties to varying degrees.
What number do you see?
Other pathologies
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