CPOA Ocular Anatomy 4

Question 1

What is the name of the blind spot in the visual field corresponding to the optic disc?

Accepted Answer

Physiological blind spot

Answer

The physiological blind spot corresponds to the optic disc, which has no photoreceptors where the optic nerve exits the eye.

Question 2

The vitreous humor occupies which segment of the eye?

Accepted Answer

Vitreous chamber (posterior segment)

Answer

The vitreous humor fills the vitreous chamber, the large posterior segment of the eye between the lens and the retina.

Question 3

Which structure is responsible for draining aqueous humor from the eye?

Accepted Answer

Trabecular meshwork and Schlemm's canal

Answer

Aqueous humor drains primarily through the trabecular meshwork into Schlemm's canal and then into episcleral veins.

Question 4

The ora serrata marks the boundary between which two structures?

Accepted Answer

Retina and pars plana

Answer

The ora serrata is the serrated anterior border of the sensory retina where it meets the pars plana of the ciliary body.

Question 5

Which coat of the eye provides structural rigidity and maintains the eye's shape?

Accepted Answer

Sclera

Answer

The sclera is the tough, fibrous outer coat of the eye that provides structural support and maintains the globe's shape.

(CPOA) Certified Paraoptometric Assistant Practice Test