Eye and orbit

Question 1

Which breeds are more difficult to asses the globe with US?
a. Mesocephalic
b. Brachiocephalic
c. Large breed-dogs, expecially doclicocephalic
d. small breed dogs

Answer 1

C. Large breed-dogs, expecially doclicocephalic. They are naturally enophthalmic

Question 2

Which is the best approach to imaged the zygomatic salivary gland?
a. Throughout the globe
b. Dorsolaterlly to the zygomatic arch
c. Ventrolaterally to the above
d. Limbal and perilimbal approach

Answer 2

c. Ventrolaterally to the zygomatic arch

Question 3

The _____ defined by the transition between the poorly reflective corneal stroma and the highly reflective sclearal tissue.

Answer 3

Corneoscleral junction (limbus)

Question 4

Which is the normal depth of the anterior chamber?
a. 1-2 mm
b. 2-3 mm
c. 3-4 mm
d. 5-6 mm

Answer 4

c. 3-4 mm

Question 5

The uvea is the middle vascular layer of the globe, and is made of the ___ and the iris anteriorly, and the ___ posteriorly.

Answer 5

ciliary body
choroid

Question 6

Normal or abnormal globe?

Answer 6

Transcorneal axial plane of a NORMAL globe in a 7-year-old patient. The lens in this older dog shows evidence of nuclear sclerosis

Question 7

Which angle represents the site for aqueous humor outflow?
a.Iridocorneal
b. Corneosclearal angle
c. Iridociliar
d. Anterioposterior

Answer 7

a. Iridocorneal

To know more:
Any primary or secondary change in the angle may interfere with normal flow of the aqueous humor and cause glaucoma.

Question 8

Which is the most common tumour in dogs?
a. Lymphoma
b. Adenoma
c. Medulloepithelioma
d. Melanoma

Answer 8

d. Melanoma is most often associated with the anterio uvea, Ciliary bodies can also be affected by the other tumours mentioned and adenocarcinoma.

Question 9

Which of the following breeds are predisposed to iridociliary cysts?
a. Labrador and Golden Retrievers
b. Great Danes
c. American Bulldogs and Boston Terriers
d. All of the above

Answer 9

d. All of the above