Ophthalmic Medications

Question 1

What ocular anesthetic is commonly used in veterinary medicine? What is a common indication?

Answer 1

Proparacaine

procedures that cause ocular discomfort, like tonometry

Question 2

What onset/duration does Proparacaine have?

Answer 2

rapid onset, short duration (5-10 mins)

Question 3

When should Proparacaine be properly given when performing ophthalmic tests?

Answer 3

AFTER a Schirmer Tear Test

(affects results!)

Question 4

What are the 2 major mydriatic cycloplegic agents used for ophthalmology? How does their use compare?

Answer 4

1. Tropicamide - used to dilate pupil, more rapid onset with a duration of 6-12 hours
2. Atropine - used to control pain to corneal and uveal disease by relaxing ciliary muscle spasm and dilate pupils, slower onset with longer duration

Question 5

What adverse effects are seen with the use of Tropicamide in cats?

Answer 5

• stings
• hypersalivation

Question 6

What adverse effects are seen with the use of Atropine? How can this be avoided?

Answer 6

DOGS and CATS - hypersalivation

use ointment formulation

Question 7

In what patients is the use of Atropine contraindicated?

Answer 7

patients with glaucoma