Surgical Eye Diseases Flashcards Preview

RUSVM Large Animal Surgery > Surgical Eye Diseases > Flashcards

Flashcards in Surgical Eye Diseases Deck (12):
1

What is the causative agent for pink eye in cattle?

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Moraxella bovis

2

The image below shows a __________ antibiotic injection for treatment of Moraxella bovis

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transpalpebral subconjunctival

3

The most common tumor in cattle is:

Squamous cell carcinoma

Most common tumor in cattle, occurs throughout the world, affects mostly older cattle

4

Bovine ocular squamous cell carcinoma is commonly referred to as:

Cancer eye

5

Squamous cell carcinoma is heritable in what cattle breed?

Hereford​

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6

What procedure is being performed here?

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Superficial keratectomy​

7

When using hyperthermia as a treatment for small circumscribed tumors, you must reach a temperature of _____ for _____ seconds to kill tumor cells

When using hyperthermia as a treatment for small circumscribed tumors, you must reach a temperature of 50˚C for 30 seconds to kill tumor cells

8

What procedure is being performed here?

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Radiofrequency hyperthermia​

9

In order to use cryosurgery as an effective tumor treatment, the tumor must be less than _____ mm

50 mm (aka 5cm)

  • Best is a double freeze/thaw cycle
  • Freeze at -25˚C
  • Freeze 0.2 – 0,4 cm of normal tissue around the tumor

10

Removal of the entire orbital content is called:

Exenteration​

11

A Peterson block blocks the __________ nerve

Optic​

12

What two local blocks are commonly used to block the optic nerve?

Peterson and Retrobulbar​