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A 22 years student goes to his opthalamo...

A 22 years student goes to his opthalamologist. He has problem in reading books because he is not able to contract his

A

Suspensory ligament

B

Ciliary muscles

C

Pupil

D

Iris.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the 22-year-old student who is having trouble reading due to an inability to contract a specific part of the eye, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Problem**: The student is having difficulty reading books. This suggests that there is an issue with focusing on nearby objects. 2. **Understand Eye Anatomy**: In the eye, several structures are involved in focusing light. The key players include the lens, ciliary muscles, suspensory ligaments, pupil, and iris. 3. **Evaluate the Options**: - **Suspensory Ligament**: These ligaments attach the lens to the ciliary body but do not directly control the focusing ability. - **Ciliary Muscles**: These muscles are responsible for changing the shape of the lens to focus on objects at varying distances. When focusing on nearby objects, these muscles contract. - **Pupil**: The pupil is the opening that allows light to enter the eye but does not play a direct role in focusing. - **Iris**: The iris controls the amount of light entering the eye but does not affect the focusing ability. 4. **Determine the Cause of the Problem**: Since the student is unable to focus on nearby objects, this indicates that the ciliary muscles are not contracting properly. This inability to contract would prevent the lens from changing shape to focus on close objects. 5. **Select the Correct Answer**: Based on the above analysis, the correct answer is **B) Ciliary Muscles**. ### Final Answer: The correct answer is **B) Ciliary Muscles**.
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