Question 1

Which cranial nerve is responsible for transmitting visual information from the retina to the brain?

Accepted Answer

Optic (II)

Question 2

What is the primary function of the lacrimal glands?

Accepted Answer

To moisten and lubricate the eye surface and kill bacteria

Question 3

A patient presents with a painless swelling on the inside of their eyelid. Which gland is most likely clogged, and what is the condition called?

Accepted Answer

Tarsal gland; Chalazion

Question 4

Which structure is responsible for focusing light on the retina after it passes through the cornea?

Accepted Answer

Lens

Question 5

What is the main function of the choroid layer in the eye?

Accepted Answer

To prevent light from scattering inside the eye

Question 6

Which of the following best describes the process of accommodation in the eye?

Accepted Answer

The ability of the lens to change shape to focus on close objects

Question 7

A patient is diagnosed with presbyopia. Which of the following best explains the underlying cause?

Accepted Answer

The lens cannot accommodate due to decreased elasticity

Question 8

Which of the following conditions is characterized by clouding of the lens and loss of lens transparency?

Accepted Answer

Cataracts

Question 9

What is the function of the iris in the eye?

Accepted Answer

To regulate the size of the pupil and control the amount of light entering the eye

Question 10

Which of the following best explains why the cornea can be transplanted easily without tissue rejection?

Accepted Answer

It is avascular and lacks a direct blood supply

Question 11

Which of the following equations best represents the relationship between the focal length ($$f$$), the radius of curvature ($$R$$), and the refractive index ($$n) of $$the lens?

Accepted Answer

$$f = \frac{R}{2(n-1)}$$

Question 12

Which of the following is NOT a function of the lacrimal caruncle?

Accepted Answer

Produces tears that drain into the nasal cavity

Question 13

Which of the following glands is associated with the development of a sty when clogged?

Accepted Answer

Ciliary sebaceous glands

Question 14

Which of the following statements about the sclera is correct?

Accepted Answer

It is the white outer layer of the eye and continuous with the dura mater of the brain

Question 15

When looking at a distant object, what is the state of the ciliary muscles and the lens?

Accepted Answer

Ciliary muscles relax; lens flattens

Question 16

Which of the following best describes the function of the suspensory ligaments (zonule) in the eye?

Accepted Answer

They hold the lens in place and attach it to the ciliary muscles

Question 17

Which of the following is the correct pathway of light through the eye?

Accepted Answer

Cornea → aqueous humor → lens → vitreous humor → retina

Question 18

Which of the following is a real-world application of the function of the iris?

Accepted Answer

Laser surgery to change eye color by removing melanin

Question 19

Which of the following best explains why people of Asian descent have an epicanthic fold in the upper eyelid?

Accepted Answer

It is a genetic trait with no functional difference

Question 20

Which of the following is the correct term for the eyelids and eyelashes, respectively?

Accepted Answer

Palpebra and Cilia

Anatomy & Physiology Study Notes: Special Senses – The Eye

Study Guide - Practice Questions

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