What is color blindness?
Color blindness is a visual impairment that affects 8% of men and 0.5% of women. Color blindness occurs when the colors do not seem to be normal. This deficiency occurs when a person cannot distinguish between green and red and less blue
Discovering of various causes for color blindness, which is the basically of a large majority of people who suffer a genetic cause, but can also occur during suffer diseases such as diabetes and multiple sclerosis.
When people fail to distinguish between red and green does not mean mixing the colors, but red and green are part of a mild full color.
The effects of this deficiency can be mild, moderate or severe, and there are a high percentage of people who are unaware of suffering from color blindness, which causes many problems they experience in their everyday lives.
What is the test of colorblindness we do?
Assuming that detect color blindness in young children is very difficult because they are not aware they have a problem in detecting colors. This is because since childhood have learned the basic colors by combining, for example, green herbs and red strawberry like color deficiency , which is considered normal for good.
That is why we recommend that you visit us, and we do the following test, especially if you suspect that your child may be color blind or have a family history that can make your son out.
The most common test is to perform Ishihara card comprising:
- It is a test for the red-green deficiency.
- They are a series of 38 cards created with colored irregular points in two or more colors.
- When you / they are placed in front of them, we ask what number you see on the card.
- These letters are prepared for a person with color blindness that sees the numbers in certain card and vice versa, which is pretty accurate diagnosis.
- Of course we have a number of special cards for children who have not yet learned the numbers.
It notes that this test cannot detect the blue color blindness, as is done with other types of medical tests more specific.
There are many sites to determine whether a person is colorblind, but we believe that the way to know for sure if you suffer from color blindness are lining Test by person visits based on self-test and follow-up questions can determine a better diagnosis.
Felipe Zaragozí Optics in Altea, we invite you to stop byour optics and we will make a full test to come out of doubt. We will be happy to help you and to solve these and other questions you may have.