Eye and Disease Flashcards
Name some uveitis associated disease in dogs
–Infectious canine hepatitis, leptospirosis, brucellosis, toxoplasmosis, systemic mycoses, leishmaniasis, ehrlichiosis, rickettsia, ocular nematodes, uveodermatological syndrome, lymphoma, multiple myeloma, metastases, immune mediated thrombocytopenia, blood dyscrasias, hypertension
Name uveitis associated diseases in cats
–Feline leukaemia virus, immunodeficiency virus, feline infectious peritonitis, toxoplasmosis, Bartonella, mycobacterium, hypertension, E. cuniculi
Name uveitis associated diseases in horses
–Equine recurrent uveitis, leptospirosis
Name uveitis associated diseases of cattle
–Bacterial septicaemia (metritis, mastitis, pericarditis) , malignant catarrhal fever, TB, leptospirosis, thromboembolic meningoencephalitis, ‘Silage eye’
What is poliosis?
Whitining of fur
What is vitiligo?
Depigment of skin
Discuss this image
Auto immune disease against melanin (there are lots of melanocytes within
eye) – inflamatry reaction in eye
Can progress to glaucoma
Control with immune therapy
Common in akitas
VKH
Discuss this case
Onset within 2 days
Eyes look full of blood
Sight test – not seeing great
What else do you look at? (come back to the eye), MM which show petechial haemorrhage
Immune mediated thrombocytopaenia
Cage rest – started to clear, if they haven’tclotted than can escape the eye
Discuss
Looks like an injury
Laceration
Not a prolapse as it is not beyond eyelid edges
MM exam – were white
Tap abdo - found to have blood
This dog – third generation rodenticide
Died within 3 hours
Clotting disorder – with a bigger trauma
What is this?
Retina or subretina haemhorrage
These can be associated with retina detachment
Hypertension and associated disease
What is this?
Optic neuritis
Define papilloedema
Swelling of optic nerve head
Name endocrine diseases which can affect eyes
- Diabetic cataract
- Lipid-laden aqueous
- Corneal lipidosis- canine hypothyroidism
- Hyperthyroidism
- Calcareous degeneration
- Hypoparathyroidism (cataracts)
What is this?
Cataracts
What is secondary to diabetic cataracts and how does it come about?
secondary glaucoma (sugar accumulated and lenstakes this up) osmotic change
What is this?
Lipid-laden aqueous
What is this?
Corneal lipidosis
What is this?
Corneal calcification
Name common neoplasias of the eye
- Lymphoma
- Multiple myeloma
- Mycosis fungoides
Metastases
What is this?
Neoplasia
Lymphoma
Discuss this case and how you may treat it
Dog de bordeox
Histiocytosis
Proliferative inflammatory disease which becomes neoplasia
Circling histiocytes
Mild skin disease through to nodular
Skin biopsy and topical steroids
Discuss this case
Neoplasia
Mycosis fungoides (T cell lymphoma)
Blood in eye
Plateetes normal
Crusting skin
Biopsy – cutaneous lymphoma
Discuss this
Uveal melanoma – common eye
Benign – gets bigger and bigger and enucleation is common
What is seen?
Uveal cyst – not neoplastic
What type of infection is this?
Fungal
What type of infection is this?
Herpes
What is this?
FIP – coronavirus
What type of infection is seen?
Parasites
What clotting disorder causes eye problems?
Warafin poisoning
Name 2 drug reactions which cause eye problems (3)
–KCS & sulphonamides are associated
–Enrofloxacin-induced blindness in cats
–Idiosyncratic drug eruptions
