CPOA Ocular Pharmacology 3

Question 1

When instilling eye drops, the para-optometric assistant should have the patient look in which direction?

Accepted Answer

Up toward the ceiling

Answer

Looking upward moves the cornea superiorly, allowing drops to be placed safely into the inferior conjunctival fornix without touching the cornea.

Question 2

Which dye is used in conjunction with a Wood's lamp or cobalt blue filter to assess corneal abrasions?

Accepted Answer

Sodium fluorescein

Answer

Sodium fluorescein fluoresces bright green under cobalt blue light, highlighting areas of disrupted corneal epithelium.

Question 3

A patient is taking a topical beta-blocker for glaucoma and has asthma. The primary concern is:

Accepted Answer

Bronchospasm

Answer

Beta-blockers can cause bronchospasm in patients with asthma or COPD because they block beta-2 receptors in bronchial smooth muscle.

Question 4

Rose bengal dye is used primarily to stain which type of ocular tissue?

Accepted Answer

Devitalized (dead or degenerated) epithelial cells

Answer

Rose bengal stains devitalized, dead, or degenerated conjunctival and corneal epithelial cells, aiding in the diagnosis of dry eye and viral keratitis.

Question 5

Which route of ocular drug administration provides the highest intraocular drug concentration?

Accepted Answer

Intravitreal injection

Answer

Intravitreal injections deliver medication directly into the vitreous cavity, achieving the highest concentration at the posterior segment target tissue.

(CPOA) Certified Paraoptometric Assistant Practice Test

(CPOA) Certified Paraoptometric Assistant Practice Test

CPOA Ocular Pharmacology 3