Question Detail

PHY 104 The Human Eye Objective Question
Take CBT

Question

What is the primary reason for the gradual diminution of the range of accommodation with age, leading to a condition known as presbyopia?
Options
A Weakening of the optic nerve over time.
B The crystalline lens growing throughout a person's life, and ciliary muscles becoming less able to distort a larger lens.
Correct Answer
C Changes in the shape of the cornea due to aging.
D Reduced production of aqueous humor, affecting lens flexibility.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The text explicitly states: 'The range of accommodation gradually diminishes with age because the crystalline lens grows throughout a person's life and the ciliary muscles are less able to distort a larger lens. For this reason, the near point gradually recedes as one grows older. This recession of the near point is called presbyopia.'

Hint

Presbyopia is directly linked to the lens and the muscles controlling it.

Question Info

Course: PHY 104
Topic: The Human Eye
Type: Objective
Difficulty: Not specified
Question 641 of 947
Previous Course Details Next