Exam Flashcards
Bacterial conjunctivitis treatment
Chloramphenicol qds
Chloramphenicol should be avoided when..
allergy
risk of aplastic anaemia
Treatment of bacterial keratitis
Admission- cefuroxime and gentamicin
Complication of herpetic keratitis
Dendritic ulcer
Consequence of treating herpetic keratitis with steroids
Corneal melt
Sources of endopthalmitis
Endogenous (staph epidermidis)
Iatrogenic (e.g. from steroid injections, VEGF)
Three layers of the meninges
Dura mater
Arachoid mater
(Subarachnoid space)
Pia mater
CSF is produced in…
Choroid plexus of the ventricles
Cerebral aqueduct connects…
The 3rd and fourth ventricles
“Copper wiring” appearance
Retinal vessels in hypertensive retinopathy
Associations of uveitis
juvenile arthritis
sarcoidosis
ank spond
Crohn’s and ulcerative coliti
Amaurosis fugax
Transient painless visual loss
Occlusion of which arteries leads to iscahemic optic neuropathy
Posterior ciliary arteries
Symptoms and signs of vitreous haemorrhage
Floaters, loss of vision, loss of red reflex
Symptoms and signs of retinal detachment
Flashes and floaters
Painless loss of vision “like a curtain coming down”
Relative afferent pupillary defect
Signs of open angle glaucoma
Optic disc cupping
Increased intra ocular pressure
Visual field defect
“Drusen” on fundoscopy and loss of the central portion of vision
Age related macular degeneration
Management of acute angle closure glaucoma
Pilocarpine- constrict the pupil
Diuretics
Ocular steroids
Mechanism of action of chloramphenicol
Peptidyl transferase inhibitor
Carbonic anydrase inhibitors in glaucoma
Systemically promote diuresis, decrease humour secretion in the ey
Increase uveoscleral outflow in glaucoma
Prostaglandin analogues e.g. latanoprost
6th nerve plasy + papilloedema
Raised ICP compressing abducent nerve
Head tilt in a child
Congenital 4th nerve palsy
Ptosis, dilated pupil, eye “down and out”
3rd nerve plasy
Progressive visual loss, “deep” eye pain and colour desaturation
optic neuritis
Congruous and macular-sparing field defects
Occipital cortex lesions