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Pupillary Reflex and Eye Functions

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Questions and Answers

What is the primary reason for the image of a distant object not being focused on the retina in myopia?

Weakened ciliary muscles

Elongation of the eyeball (correct)

Increased curvature of the cornea

Decreased curvature of the cornea

What type of lens is used to correct hypermetropia?

Concave lens

Cylindrical lens

Convex lens (correct)

Spherical lens

Why does the defect of myopia increase with age?

Due to an increase in the refracting power of the eye

Due to an increase in the size of the eyeball (correct)

Due to a decrease in the refracting power of the eye

Due to a decrease in the size of the eyeball

What is the reason for nearby objects not being focused on the retina in hypermetropia?

Light rays are focused behind the retina Signup and view all the answers

What is the mechanism used to focus on nearby objects in hypermetropia?

Ciliary muscles contraction Signup and view all the answers

What is the typical age group affected by myopia?

Younger individuals Signup and view all the answers

How is the power of the lens for correction of refractive error determined?

By trial method Signup and view all the answers

What is the result of increased curvature of the cornea in myopia?

Increased refracting power of the eye Signup and view all the answers

What type of lens is used to correct myopia?

Concave lens Signup and view all the answers

Why do distant objects appear blurred in myopia?

Because the image is focused in front of the retina Signup and view all the answers