CPOT CPOT Ocular Anatomy & Physiology 2

Question 1

The crystalline lens of the eye focuses light by changing shape through a process called:

Accepted Answer

Accommodation

Answer

Accommodation is the process by which the ciliary muscle adjusts the curvature of the crystalline lens to focus on objects at varying distances.

Question 2

Which coat of the eye is the vascular, pigmented middle layer that supplies oxygen to the outer retina?

Accepted Answer

Choroid

Answer

The choroid is the highly vascular middle layer of the eye that nourishes the outer retinal layers with oxygen and nutrients.

Question 3

The anterior chamber of the eye is bounded anteriorly by the cornea and posteriorly by the:

Accepted Answer

Crystalline lens and iris

Answer

The anterior chamber is the fluid-filled space between the cornea in front and the iris and lens behind.

Question 4

Normal intraocular pressure (IOP) typically ranges between:

Accepted Answer

10–21 mmHg

Answer

A normal IOP is generally considered to be 10–21 mmHg; pressures consistently above 21 mmHg may indicate ocular hypertension or glaucoma risk.

Question 5

The transparent, gel-like substance that fills the posterior segment of the eye between the lens and retina is the:

Accepted Answer

Vitreous humor

Answer

The vitreous humor is a clear, gel-like substance occupying the vitreous cavity and helps maintain the shape of the eye.

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