عمى الألوان: هل هو مرض؟ وكيف نعرف نوعه؟

English version

Color Vision Deficiency: What It Is and How It Is Tested

Quick answer

Color vision deficiency means difficulty distinguishing certain colors or shades; it does not usually mean seeing only black and white. The most common forms are inherited and noticed early, while a new change can relate to the eye or general health and deserves assessment.

What types are common?

Types differ according to which colors are difficult to distinguish. Red-green differences are most common; less common forms affect blue-yellow perception. The degree varies from person to person.

How is it tested?

An eye professional may use plates with colored dots that form shapes or numbers, followed by other tests if needed. Phone or online tests are only a rough guide and do not replace a controlled examination, especially for a new change.

Can it be treated?

There is no treatment that restores typical color perception for inherited deficiency, but many people adapt using color labels, assistive apps or consistent organization. If another condition is responsible, the clinician treats that cause when possible.

When should you get checked?

If you or your child have noticed the difference for a long time, an exam can clarify the type and school or work needs. A sudden change in one eye, especially with blur or pain, needs medical assessment rather than assuming it is inherited.

Frequently asked questions

Does color blindness mean seeing no colors?

Usually not. Many people see most colors but confuse particular shades.

Is color blindness inherited?

Some forms are inherited, but not every color change is. Testing and health history help distinguish them.

Do color-correcting glasses cure it?

Some products may alter contrast for some people, but they do not treat the cause and are not suitable for everyone.

This article is for education and does not replace an eye examination. Sudden vision loss, severe pain or a curtain in your field of vision needs urgent assessment.