Pass Med Q's Flashcards
what is Hutchinsons sign
herpes zoster rash on tip/side of nose
- strong risk factor suggesting ocular involvement
- same day assessment by ophthalmology
what does strabismus mean
squint
what is a concominant squint
common squint due to imbalance of extra-ocular muscles
2 types:
- convergent squint (most common)
- divergent squint
screening test for a squint
corneal light reflection test
classification system for hypertensive retinopathy
Keith-Wagener Classification
Stage 1: narrowing of arterioles
Stage 2: arteriovenous nipping (arterioles cause compression of veins where they cross)
Stage 3: cotton wool spots, exudates, haemorrhages
Stage 4: papilloedema
1st line treatment option for allergic conjunctivitis
topical antihistamines
what 2 things does the treatment of acute angle closure glaucoma aim to do
decrease aqueous humour production
induce pupil constriction
red-tinged vision with dark spots
vitreous haemorrhage
risk factors for vitreous haemorrhage
anti-coagulants
short sighted
diabetes
treatment of anterior uveitis
steroid eye drops + Mydriatic eye drops (e.g. cyclopentolate)
silver wiring
increased light reflex seen in hypertensive retinopathy
cobwebs in vision
vitreous haemorrhage
Horners syndrome + shoulder/arm pain is suggestive of what?
Pancoast syndrome
- malignant neoplasm of the lung
mechanism of timolol in the treatment of glaucoma
reduce aqueous production by ciliary body
contact lens wearer, recent fresh water swimming + pain out of proportion with clinical findings suggests what?
acanthamoebic keratitis