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A colour vision deficiency is also innate in most cases with many visual impairments. Men are more commonly affected than women.
Colour vision deficiency or colour blindness? The two terms are often used as synonyms. But the hereditary vision problems are by no means equal: Protanomaly or deuteranomaly describes a red or green colour vision deficiency. This means the colours can only be detected when they are particularly saturated and strong.
Colour blindness for different colours is called anopsia. In the case of protanopia or deuteranopia the affected individual is missing the colour receptors for red or green on the retina and the two colours are perceived as bright grey shades. Unfortunately, there are no treatment options available for a colour vision deficiency or colour blindness. However, with tinted lenses the frequently occurring light sensitivity can be alleviated.
In simple terms, the retina is a projection area on which our environment is depicted. It guides the impulses caused by bursts of light to the brain.
The Amsler vision test is used to examine the retina. With the Amsler grid diseases affecting the centre of the retina can be identified. In the case of macular degeneration, the central visual acuity of an eye is fully or partially lost. As only the centre of the retina is affected, the field of vision at the sides is retained.
Macular degeneration must be treated professionally. If you do not have a good feeling with this vision test, please visit your ophthalmologist.
The field of vision, also called field of view, is what we see when we look directly ahead with our head straight.
It covers everything that is depicted on the retina. Here it does not matter whether the things are sharp – also the environment that one perceives but cannot detect clearly is also included.
Improve your vision at a monitor
A few simple measures and a special pair of computer or near comfort spectacles guarantee improved visual comfort when working at the monitor. The settings of your monitor also play a role here.
