When people hear color blindness, they often think it means the colour blind person sees only in black and white. In truth, they face colour vision problems. And experience a colour deficiency or confusion between colours.
For example, some people can’t tell the difference between gray and green. This misconception is due to the lack of education on the awareness of color blindness. Colour deficiency is a condition. Some people have challenges to see one or more primary colours (red, green, or blue). and being able to recognize them through their retina (back of the eye).
People with color blindness may not be aware of differences among colors that are obvious to the rest of us. Meanwhile, people without severe color blindness may not be aware of their condition.
Individuals with color blindness lack green, or red, or blue receptors. It results in the person seeing only 1 colour. Some people have no functioning cones on the back of the eye and this causes them to see only gray, black or white.
Colour blindness can affect one’s ability to choose cloth colors, draw, label and more. When children are colour blind, it can sometimes be mistaken for cognitive problems. Such as unable to learn the colours. It can also interfere with their ability to recognize coloured shapes.
Apart from the colour vision screening, we also offer other in-depth colour blind test to classify the nature and severity of particular color deficiency (Buta Warna, 色弱).
This alternate colour blind test differentiates various types of moderate red-green or blue-yellow colour vision defects.
In this colour blind test, it tests for mild colour blindness caused by eye disease (ocular pathology).
This is a very sensitivity test that picks up very mild colour vision problems. This test is to determine if one is lacking red or green receptors. But it can't tell exactly what or which receptors someone is lacking. Lack of red and green receptors are the most common causes of colour blindness.
Someone can fail the Ishihara test and not be colour blind. Instead, this person may have difficulty with visual information processing skills. The skill needed to tell where things are in relation to others (visual figure ground).
This test can detect whether you lack red, green and/or blue receptors. It uses colours we see in daily life, and it compares colours to colours. As a patient, one would not know whether they passed the test or not.
This test is like the Ishihara test. This test is to detect when one is lacking blue receptors. It also determines if the colour deficiency is mild, moderate or severe.
If you notice a serious change in how you see color, contact our vision specialist. Your symptoms could be a warning sign, so it's a good idea to schedule a quick consultation. You should also tell our vision specialist if you think you’re having trouble seeing colors.
There are a number of inherited diseases that can lead to color blindness, but they are quite rare and most are from eye specific illnesses, such as:
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