Question | Answer |
What is the normal Schirmer Tear Test range in dogs? | >15mm/min |
What does aqueous flare signify? | Uveitis |
What is normal intraocular pressure range? | 10-25mmHg |
How do you diagnose masticatory muscle myositis? | Serum 2M Antibodies |
What technique is used to treat an Entropian in an adult dog? | Holtz-celsus surgical correction |
What technique is used to treat diamond eye? | Blepharoplasty |
What is Trichiasis? | Normal hair making abnormal contact with the cornea (due to entropian / skin fold) |
What is Distichiasis? | Cilia emerging from meibomian gland / eyelid margin causing cornea irritation |
What is an Ectopic Cilium? | Cilia emerging from palpebral conjunctiva - need to evert eyelid to see |
What size and type of suture do you use for eyelid surgery? | 5/0 or 6/0 vicryl |
What does the third eyelid contribute to tear production? | 1/3 total - aqueous component |
What is an important surgical consideration for burying the TEL gland | Knot on palpebral aspect |
What are the signs and findings in KCS? (keratoconjunctivitis sicca) | dry eye mucoid STT <10mm/min TBUT <5s corneal pigmentation and vascularisation |
How do you treat KCS/dry-eye? | Lubrication and ciclosporin |
What presents as a pink granulation infiltration on the cornea? | Pannus / chronic superficial keratitis |
How would you treat an indolent ulcer? | Corneal debridement, grid keratotomy, topical antibiotics |
How does a descemetocele present when stained with fluoroscein? | Deep ring of uptake with central area of no stain |
How do you treat a melting ulcer? | Serum drops |
hyphema? | blood in the anterior chamber |
What is the definition of glaucoma? | IOP > 25mmHg |
How do you treat glaucoma in dogs v cats? | Prostaglandin analgoue in dogs Carbonic anhydrase inhibitors in cats |
What are the two mydriatics and which should you use for an ophthalmic exam? | Atropine - slow onset, long duration *Tropicamide* - rapid onset, short duration |
When should you avoid mydriatics? | KCS, glaucoma, lens luxation |
Which local anaesthetic should be used for eye examination? | Proxymetacaine |
How does EDTA work as an anti-collagenase for melting ulcers? | Chelates zinc which is necessary for collagenases |
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