Briefly compare and contrast the spectrum of colour vision found in dogs, horses and chickens

11. Briefly compare and contrast the spectrum of colour vision found in dogs, horses andchickens. (4 marks)12. Briefly describe the phenol red thread test and state the normal values for the dog, catand horse. (4 marks)13. Answer both parts of this question:a) Briefly describe or draw the life cycle of Encephalitizoon cuniculi. (2 marks)b) List four (4) mammalian species in which E. cuniculi has been reported tocause ocular disease. (2 marks)Continue over pageVeterinary Ophthalmology Paper 1 Page 5 of 9© 2016 The Australian and New Zealand College of Veterinary Scientists ABN 00 50 000894 20814. With reference to the ocular anatomy of camelids:a) Name the absent eyelid structure that sets them apart from other domesticmammals. (1 mark)b) Identify the retinal adaptation of some camelids which is suggested to helpwith to high altitude living. (1 mark)c) State the finding in corneal anatomy suggested to predispose llamas andalpacas to corneal oedema. (1 mark)d) Briefly explain the pupillary rough in camelids and state its proposed function.(1 mark)15. Briefly describe tear dispersal from the canine conjunctival sac. (4 marks)16. Name the aging changes take place in the vitreous and what are the clinicalimplications of these changes? (4 marks)17. State the advantages and disadvantages of the following tissue fixatives used forocular pathology: (4 marks)i. formalinii. glutaraldehydeiii. Davidson’siv. Bouin’s.Continued over pageVeterinary Ophthalmology Paper 1 Page 6 of 9© 2016 The Australian and New Zealand College of Veterinary Scientists ABN 00 50 000894 20818. With respect to latanoprost:a) List the potential complications that may arise when using this drug more thantwice a day in dogs. (2 marks)b) Briefly comment on the theoretical use of this drug in the treatment of equineand feline glaucoma. (2 marks)19. With reference to corneal suturing:a) List six (6) disadvantages of the simple interrupted suture pattern. (3 marks)b) List two (2) advantages of the simple interrupted suture pattern. (1 mark)20. Outline the anatomy of the precorneal tear film. (4 marks)

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