Color Recognition (Dyschromatopsia) Screening
By age four year, nine months, most children recognize four colors. If you suspect a delay in your child's color recognition, you can ask the following questions:
• Does your child recognize pictures in books?
• Can he or she count to five?
• Does he or she know her alphabet?
• Can your child spell his or her name?
• Does he or she know the primary colors: red, blue, yellow?
• Do other family members have problems with color vision, like recognizing traffic lights?
If your child can do these other things, but still does not recognize colors, there may be a problem.
A common problem, color blindness can be congenital or acquired later in life. Defects range from total color blindness, which is rare, to just having problems confusing colors, like blues and violets, red or green with brown, green with gray or white, and red with yellow or green. Red/Green color blindness is the most common color vision defect.
The plate test hides symbols, letters, or numbers within colored dots to see if the patient can distinguish the different color patterns.
In school, being color blind can cause difficulty if teachers are using colors to represent things that they are trying to teach your child. Early detection will assure that you can make your child's teacher aware of any problems that exist.