Eye

Question 1

How does colour blindness happen

Answer 1

It is when some cones are fault and do not work properly.

Question 2

What is the most common form of colour blindness

Answer 2

red-green colour-blindness

Question 3

How is cataracts caused

Answer 3

It’s caused by a build up of protein inside the lens and makes it cloudy.

Question 5

How can cataracts be corrected

Answer 5

By replacing the clouded lens with a plastic one

Question 6

What happens if someone has myopia?

Answer 6

-You can’t see things far away
-Your eyeball is either too long or your lens and cornea may refract too much
-Image is infront of the retina

Question 7

How is myopia corrected

Answer 7

-Wear glasses or contacts lenses that contain concave lenses
-Concave lenses spread out the light so it focuses on the retina

Question 8

What happens if someone has Hyperopia?

Answer 8

-You cannot see close by objects clearly
-Your eyeball is either too short or your lens and cornea may not refract light enough
-Image is behind the retina

Question 9

How is Hyperopia corrected

Answer 9

-Wear glasses or contact lenses that contain convex lenses
-Convex lenses pull the light in so it focuses on the retina