Color blindness that is inherited is present in both eyes and remains constant over an individual's entire life. Some cases of acquired color vision loss are not severe, may appear in only one eye, and last for only a short time. read more
Red-Green Color Blindness. It’s when photopigments in your eyes’ red cones or green cones don’t work properly -- or at all. There are several types: Deuteranomaly: It’s the most common form of color blindness and affects 5% of males, but is rare in females. It happens when the green cone photopigment doesn’t work as it should. read more
Diagnosis of Color Blindness. Inherited color vision deficiency is usually diagnosed in early childhood using simple screening tests. The Hardy-Rand-Rittler (H-R-R) and Ishihara Color Plates are used to evaluate the type and degree of color deficiency. read more