Ophthal Flashcards
1
Q
Cycloplegic / mydriatic drugs:
- examples
- uses
- SE
A
Cycloplegic drugs:
- examples: atropine, cyclopenntolate, tropicamide (all are psns antichol blocking iris + ciliary body muscles dilating pupil), phenylephrine
- uses: dilate pupil to visualise retina, ambylopia
- SE: whitening of eyelids, sting, redness of face in atropine
2
Q
Pilocarpine
- class + mech
- se
A
- class + mech: an antimuscarinic on iris sphincter muscle causing contraction so pupil constricts opening up in closed angle glaucoma
- se: blurry vision, flushing, stinging, itching, lacrimation
3
Q
Latanoprost:
- mech
- se
A
- mech: in open angle glaucoma. prostag analogue inc uveosacral outflow dec IOP
- se: iris browning, eyelid pigment, eyelash growtth
4
Q
Acetazolamide (oral + iv), dorzolamide:
- class + mech
- se
A
- class: carbonic anhydrase inhib, dec aq humour production
- se: tingling/paresthesia, n+v, sjs, tachyc, dizzy
5
Q
Brimonidine:
- mech
- se
A
- mech: alpha adrenergic agonist dec aq production + inc outflow
- se: stinging, dry mouth, headache
6
Q
Timolol:
- mech
- se
A
- mech: b blocker dec aq humour prod
- se: eye discomfort, hypotension, bronchospasm, bradycardia (bc nasal mucosa highly vascularised so systemic symp)
