Colour blindness.

Why in news?

• Supreme Court directed FTII not to exclude candidates suffering from colour blindness from film making and editing courses.

About Colour blindness:

• Inability to distinguish between certain colours– usually greens and reds, and sometimes blues as well.
• Causes: Most cases are people born with the condition (congenital colour blindness), but some can develop it later in life.
• Medical conditions like glaucoma, diabetes, Alzheimer’s, Parkinson’s etc may increase the risk.
• The most common kinds of color blindness are genetic and mostly men are affected by it (since it is passed down through X chromosome and men have only 1 X chromosome).