Pig Eye Dissection Lab

Question 1

ID the…

Answer 1

cornea

Question 2

ID the…

Answer 2

Sclera

*The white of the eye

Question 3

ID the…

Answer 3

LIMBUS

Question 4

ID the..

Answer 4

upper and lower eye lids..

Question 5

ID the..

Answer 5

third eyelid (the nictitans or nictitating membrane)

Question 6

ID the…

Answer 6

optic nerve

Question 7

Why is an entropion repair surgery performed?

Answer 7

?

Question 8

Why is a tarsorrhaphy surgery performed?

Answer 8

?

Question 9

Why is an enucleation procedure performed?

Answer 9

?

Question 10

What is the surgical approach of…

Answer 10

Entropion repair

• What is entropion? What are the potential clinical sequelae?
• ID ON DOCUMENT

Question 11

What is the surgical approach of…

Answer 11

Tarsorrhaphy?

• What is a tarsorrhaphy? What are some clinical indications for performing?
• ID ON DOCUMENT

Question 12

What is the surgical approach of..

Answer 12

enucleation?

*ID ON DOCUMENT

Question 13

ID the..

Answer 13

IRIS

Question 14

ID the..

Answer 14

PUPIL

Question 15

ID the..

Answer 15

LENS

Question 16

ID the..

Answer 16

aqueous humor

Question 17

ID the..

Answer 17

vitreous humor

Question 18

ID the..

Answer 18

choroid

Question 19

ID the..

Answer 19

retina

Question 20

Adnexa of the eye..

Answer 20

eyelids, the nictitating membrane and the conjunctiva.

Question 21

What is the function of the…

Answer 21

nictitating membrane?

Question 22

What is the function of the…

Answer 22

conjunctiva?

Question 23

ID the cornea

Answer 23

Translucent structure.

However in a post mortem specimen, the cornea takes a cloudy blue-grey, semi-opaque appearance.

Question 24

What is the limbus?

Answer 24

The junction of the cornea and the sclera

Question 25

What are the two techniques that are commonly used to performed enucleation?

Answer 25

Transpalpebral approach AND Subconjunctival approach

Question 26

When would a Transpalpebral approach to enucleation be more appropriate?

Answer 26

In patients with a tight globe-orbit relationship, such as a cat or a patient with buphthalmos, a transpalpebral approach may be more easily accomplished.

Question 27

When would a subconjunctival approach to enucleation be more appropriate? Possible risks?

Answer 27

• The subconjunctival approach eliminates bleeding from the skin and orbicularis muscle. However, it runs the risk of potentially not removing all secreting membranes, meaning that if enucleation in this manner is incompletely performed, the patient could still have functional lacrimal tissue that can subsequently fill up the space previously occupied by the globe.

Question 28

What is the optic nerve?

Answer 28

Transmits all the signals from the back of the eye to the brain.

Question 29

What is the vascular layer of the eye?

Answer 29

Choroid

Question 30

What do the band or ring of ligaments lining the inside and the ciliary muscles do?

Answer 30

Help change the shape of the eye with accommodation.