Question

state the cause and symptoms of colour blindness in human ​

Answer 1

Answer:

The symptoms of color blindness can range from mild to severe. Many people have such mild symptoms that they are unaware that they have a color deficiency

The symptoms include:

trouble seeing colors and the brightness of colors in the usual way;

inability to tell the difference between shades of the same or similar colors. This happens most with red and green, or blue and yellow.

Most people with color blindness are born with it. This is called a congenital condition. Congenital color vision defects usually pass from mother to son.

These defects are due to partial or complete lack of cones in the retina. Cones help you to distinguish the colors red, green, and blue.