Types of Color Blindness and Severity

Color blindness, a condition that happens to at least one out of 15 people, is mostly Types of Color Blindnessinherited although there are also other causes like eye injury. Meanwhile, there are also several types of color blindness. The types are determined by the severity of the blindness. In normal condition, there are three cones working properly in the retina which is called as trichromacy. This is why people having normal color vision are called as trichromats.

5 Types of Color Blindness

  1. Protanomaly

It is the first among the types of color blindness. It refers to red weakness, one of the color deficiency problems. so, that a person is unable to see or differentiate the red color. In this condition, a person sees the red much paler than a normal observer. In fact, some patients completely fail to detect the red. So, it is also hard for the patients to recognize violet. They see violet as another shade of blue. It is a condition that happens to one out of 100 males.

2. Deuteranomaly

This second on the types of color blindness happens to 1 out of 100 males. It refers to green weakness. It is basically similar to the first color blindness type only the deuteranomalous person is unable to see or differentiate green. Usually, the person makes errors in differentiating the hues in green, yellow, orange and red region because the hues are shifted towards the red colors. Although it doesn’t disturb the daily life it makes the patients feeling a bit uncomfortable.

3. Dichromacy

It is a condition that happens to 2 out of 100 males. Usually, the individual realizes this problem and it may affect daily life as well. In this condition, he cannot tell the difference between green, yellow, red and orange. For him, these colors appear the same. Under this condition, it can be dangerous for the patients to drive under foggy weather, rainy or dazzling sunlight. It is because the person can make mistake in differentiating the traffic signals or differentiating the green traffic light from other street lights on the streets.

4. Dichrcomasy

This condition of types of color blindness happens to 2 out of 100 males and it can be a problem that affects the daily life. Under this condition, the individual is unable to see the difference between green, yellow, orange and red. For him, all these colors seem to have no difference. All these colors are alike according to his vision. When driving, this condition can be a bit dangerous because he is unable to tell the difference between the signs of traffic light. Therefore, the individual usually recognizes the traffic sign according to the order.

5. Deuteranopia

This is the last color blindness type which happens to 1 out of 100 males. As other types, it affects the daily lives. Under this condition, the individual experiences hue discrimination as of the protanope only it doesn’t have abnormal dimming issue. He cannot tell the difference between the green, orange, red and yellow colors.

To be certain of which types of color blindness that you or your kids experience, see the doctor and take the test.