Understanding Nearsightedness and Farsightedness

What is another term for nearsightedness?

• Hyperopia

• Astigmatism

• Presbyopia

• Myopia

Which part of the eye is primarily responsible for causing nearsightedness when it is too long?

• Lens

• Cornea

• Retina

• Eyeball

What type of lens is used to correct nearsightedness?

• Concave

• Convex

• Cylindrical

• Bifocal

How does a concave lens help in correcting nearsightedness?

• By converging light rays

• By diverging light rays

• By focusing light on the cornea

• By elongating the eyeball

What is another term for farsightedness?

• Myopia

• Astigmatism

• Presbyopia

• Hyperopia

What causes farsightedness in terms of the eye's structure?

• Thick lens

• Eyeball too short

• Flat cornea

• Eyeball too long

Which type of lens is used to correct farsightedness?

• Concave

• Cylindrical

• Convex

• Bifocal

How does a convex lens correct farsightedness?

• By diverging light rays

• By shortening the eyeball

• By flattening the cornea

• By converging light rays

What happens to light rays in the eye of a farsighted person?

• They focus in front of the retina

• They do not focus at all

• They focus on the cornea

• They focus beyond the retina