4.11 Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is short-sightedness called?

A

Short-sightedness is called ‘myopia’. This is caused by a long eye ball where the focal point falls short of
the retina.

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2
Q

How is myopia corrected?

A

Myopia is corrected with concave lens glasses.

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3
Q

What is long-sightedness called?

A

Long-sightedness is called ‘hyperopia’. This is caused by a short eye ball where the focal point passes
the retina.

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4
Q

How is hyperopia corrected?

A

Hyperopia is corrected using convex lenses.

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5
Q

What are cataracts and how are they corrected?

A

Cataracts are cloudy lenses that prevent light from entering the eye. They can be corrected with surgery.

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6
Q

What is astigmatism?

A

Astigmatism is a football-shaped cornea that causes blurry vision. It is corrected with prescription
glasses.

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