Midterm 1 PQ

Question 1

What kind of surgical procedure can be used to treat a deep stromal corneal abscess in a horse?
A) Grind keratotomy
B) Enucleation
C) Pars plana vitrectomy
D) Penetrating or lamellar keratoplasty

Answer 1

D) Penetrating or lamellar keratoplasty

Question 2

In case of synechia posterior
A) The pupil is maximally dilated
B) The pupil can only have a regular shape
C) There is an adhesion between the iris and the cornea
D) There is an adhesion between the iris and anterior lens capsule

Answer 2

D) There is an adhesion between the iris and anterior lens capsule

Question 3

If the indirect PLR (pupil light reflex) is present in the right eye (OD), this means
A) The intraocular pressure is increased in OD
B) OU are sighted
C) The retina is functional in OD
D) The retina is functional in OS

Answer 3

A) The intraocular pressure is increased in OD

Question 4

What is the function of tapetum?
A) Reflection of the light into the photoreceptors
B) Absorption of the light in the ventral half of the ocular fundus
C) Reflection of the light into the choroid
D) Absorption of the light by the pigments of the retinal pigment epithelium

Answer 4

C) Reflection of the light into the choroid

Question 5

Which is not an acute sign of uveitis
A) Blepharospasms
B) Mydriasis
C) Epiphoria
D) Blood - aqueous barrier breakdown

Answer 5

B) Mydriasis

Question 6

If a descemetocele is stained by fluorescein
A) The Descement’s membrane remains permanently stained
B) The stroma has stain uptake, but the Descement’s membrane hasn’t
C) Superficial epithelial loss can be detected
D) The stroma has no stain uptake, bu the Descement’s membrane has

Answer 6

B) The stroma has stain uptake, but the Descement’s membrane hasn’t

Question 7

Using a direct opthalmoscope
A) A virtual magnified image of the fundus can be obtained
B) Entire fundus can be examined if the pupil is miotic
C) Fundus cannt be examined if the investigator is emmetrope
D) Iris can be examined

Answer 7

D) Iris can be examined

Question 8

A supraorbital nerve block is recommended for a horse, when
A) A lacerated wound of the superior eyelid needs to be sutured
B) Sub palpebral drain must be inserted in standing position
C) None of the above listed
D) Both of the above listed

Answer 8

D) Both of the above listed

Question 9

Aphacic crescent is visible
A) In case of synechia posterior
B) In case of maximal mydriasis
C) In case of retinal detachment
D) In case of lens subluxation

Answer 9

D) In case of lens subluxation

Question 10

What kind of surgical procedure can be used to treat an indolent chronic superficial corneal ulcer in a horse?
A) Trans palpebral enucleation
B) Subscleral cyclosporine implantation
C) Third eyelid flap
D) Superficial keratectomy or keratotomy

Answer 10

D) Superficial keratectomy or keratotomy

Question 11

What kind of mydriasitic would you use to dilate the pupil at the opthalmic examination?
A) 1% tropicamide
B) 2% atropine
C) 2% lidocaine
D) 1% pilocarpine

Answer 11

A) 1% tropicamide

Question 12

Which statement is true regarding atropine?
A) Effectivity gives information about the severity of the uveitis
B) Induces constricted pupil for a couple of days in a healthy eye
C) Can be used for pupil dilation at the eye exam
D) It has a stronger effect on the eyes with blue iris

Answer 12

B) Induces constricted pupil for a couple of days in a healthy eye (?)

Question 13

Iris bonbé means
A) Brownish iris
B) Adhesion between the iris and cornea
C) Iris protrudes toward the cornea due to synechia posterior
D) Iris pushed forward against the cornea due to anterior lens luxation

Answer 13

C) Iris protrudes toward the cornea due to synechia posterior

Question 14

Which nerve block is used most commonly at ocular examination in the horse?
A) Frontal nerve
B) Auriculopalpebral nerve
C) Supraorbital nerve
D) Infraorbital nerve

Answer 14

B) Auriculopalpebral nerve