ECVO exam Slide sample questions 1 Feline eye

ECVO exam Slide sample questions

1. Feline eye a. List any abnormalities b. What is the correct diagnosis? c. Briefly describe the aetiopathogenesis

2. Equine fundus image a. What is the funduscopic abnormality seen? b. From which embryological layer does the affected tissue arise?

3. Turtle, 5 years old This animal, housed in an aquarium and fed an insect/ meat diet, presented with bilaterally swollen and closed eyelids, and poor growth. a. What is the most likely aetiological diagnosis? b. What systemic signs may be present? c. What treatment is advised?

4. Gonioscopy, two year-old dog a. What abnormality is shown ? b. Complete an ECVO eye examination form (supplied) for this patient

ECVO SLIDE EXAM: WRITE YOUR CANDIDATE NUMBER HERE: ECVO FORM FOR Q 4

5. Equine fundus image In association with which equine systemic disease have these lesions been described?

6. Gonioscopy, 6 yo Flat-coated retriever • What are the two major diagnoses seen in this photograph ?

7. Ultrasound image of a canine eye a. Describe any ultrasonographic abnormalities b. What is the most likely clinical diagnosis?

8. Right eye of a cat. This condition is bilateral a. State a correct term for this pupillary condition b. Which cranial nerve is affected in this condition? c. Which branch of the above nerve is affected?

9. Image of a canine fundus • What is the exact location of the indicated lesion (be precise)?

10. Histologic micrograph a. What part of the eye is shown ? b. List two major histopathological abnormalities seen?

11. Image of a Bernese mountain dog • List three systemic diseases as a possible cause for these ocular signs.

12. Clinical photograph • This pupil has been dilated with Tropicamide. List the two main intraocular clinical diagnoses

13. Slit-lamp biomicroscopy • What abnormality is identified (be specific regarding localisation)

14. Right eye of a rabbit a. List two ocular abnormalities b. What is the most likely aetiology?

15. Cytological sample, equine eye a. Describe your findings b. List two possible infectious causative agents

16. Miniature poodle, male, 3 yo, OD a. State the correct term for this ophthalmoscopic finding b. List six possible underlying systemic diseases

17. Fundus image a. What type of animal does this fundus belong to ? b. What is the correct term for the indicated areas b 1 and b 2 ? B 1 B 2

18. Dachshund, 12 years old. CT scan image List 4 radiological (NB not clinical) abnormalities R L

19. Left orbit of a canine skull • Name three openings from the top left to the bottom right.

20. Skull radiograph, 3 year crossbreed dog • Describe any radiographic abnormalities

Correct answers 1 a. Shallow anterior chamber, anteriorly displaced lens 1 b. Aqueous misdirection syndrome 1 c. Misdirection of aqueous humour posteriorly through small breaks in the hyaloid near the vitreous base. Increased vitreous pressure causes anterior displacement of lens and a shallow AC 2 a. Focal RPE hypopigmentation/ RPE coloboma 2 b. Neuroectoderm 3 a. Hypovitaminosis A 3 b. Squamous metaplasia of renal, pancreatic, GIT and respiratory epithelia 3 c. Commercial trout pellets if still eating, parenteral Vitamin A, topical antibiotics

Correct answers 4 a. Pectinate ligament dysplasia or goniodysgenesis 4 b. Form filled correctly, box 8 and Occlusio box ticked 5. Equine motor neuron disease / Vitamin E deficiency 6 a. Pectinate Ligament Dysplasia/ goniodysgenesis 6 b. Limbal melanocytoma (endothelial pigmentation also accepted) 7 a. Hyperechoic area adjacent to posterior lens capsule, with disruption of lens capsule 7 b. Posterior lens capsule rupture

Correct answers 8 a. Hemidilation (reversed D-shaped pupil also acceptable) 8 b. Oculomotor nerve 8 c. Malar nerve 9. Pre-retinal 10 a. Iridocorneal drainage angle 10 b. Two of: PLD, collapsed angle, recessed angle 11. Histiocytic sarcoma/ malignant histiocytosis/ lymphosarcoma/ Leishmaniasis

Correct answers 12. Cataract, microphakia 13. Crystalline opacity/ cataract located within lens nucleus 14 a. Two of: Iris abscessation, iris neovascularisation, iris hyperaemia 14 b. Encephalitozoon cuniculi 15 a Epithelial cell with intracellular rod like bacteria visible 15 b. Pseudomonas, Listeria

Correct answers 16 a. Lipid retinopathy/ lipaemia retinalis 16 b. Six of: Hyperlipidaemia, pancreatitis, hypothyroidism, diabetes mellitus, Cushings disease, liver disease, protein-losing nephropathy, high fat diet 17 a. Primate 17 b 1. Macula 17 b 2. Fovea 18. Soft tissue density mass in left orbit; anterior displacement of left globe; indentation of posterior L globe; increased radiodensities within mass

Correct answers 19. Optic foramen/ Orbital fissure/ Rostral alar foramen 20. Large radiodense mass in the right orbit (without signs of osteolysis)