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Refractive errors of the eye

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

What is the refractive error?

a)

Myopia

b)

Astigmatismo

c)

Hyperopia

d)

Normal

2.

What is the refractive error?

a)

Myopia

b)

Astigmatismo

c)

Hyperopia

d)

Normal

3.

What is the refractive error?

a)

Myopia

b)

Astigmatismo

c)

Hyperopia

d)

Normal

4.

What is the refractive error?

a)

Myopia

b)

Astigmatismo

c)

Hyperopia

d)

Normal

5.

What kind of error is shown in the image?

a)

Hyperopia

b)

Astigmatism

c)

presbyopia

d)

Myopia

6.

In astigmatism the images are elongated or blurred and are treated with converging lenses? T or F

(a)  

7.

Type of lens to be used in refractive errors of myopia, astigmatism, hyperopia and presbyopia? (in order)

a)

cylindrical,concave,convex,convex

b)

Concave, cylindrical,convex, convex

c)

concave,convex, cylindrical,convex

d)

convex, concave, cylindrical,convex

8.

Age at which visual maturation ends?

a)

5 years

b)

6 years

c)

7 years

d)

8 years

9.

The light must pass the cornea and the lens that will later be focused on the Retina( T or F)

(a)  

10.

What is the weight of the eye?

a)

6 grams

b)

7 grams

c)

8 grams

d)

None of the above

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