What are the problems of eye?

Sight is the key sense, so maintaining good vision is important to humans. Eyesight often deteriorates as the body ages and the number of light-sensitive rods and cones decreases. Two of the most common eye conditions are problems with focusing and with seeing certain colours.

Out of sight

The most common eye problems are short-sightedness and long-sightedness, where distant or near objects can appear blurred. Glasses or contact lenses can help the light to focus in the right place within the eye and make images sharp again.

Short-sightedness

Short-sighted people can focus on things that are close, but not on things that are further away.

Long-sightedness

Long-sighted people can focus on things at a distance but not on near objects.

Colour blindness

Most eyes can see millions of different colours, but some people cannot distinguish between colours because of injury, illness, or an inherited condition. More boys than girls have colour blindness.

 

Picture Credit : Google