eye medications Flashcards
closed angle glaucoma- ambulance treatment
pilocarpine- eye drops
acetazolamide- oral
pilocarpine
acts on muscuracin receptors
acts on the sphincter muscles of the iris causing constriction of the pupil
acetazolamide
carbonic anhyrase inhibitor
reduces production of aqueous humour
secondary management of closed angle glaucoma
pilocarpine acetazolamide hyperosmotic beta blockers- timolol dorsolamide brimonidine
role of timolol in glaucoma
reduces the production of aqueous humour
hyperosmotic agents
glycerol
mannitol
increases the osmotic grandient between the blood and the eye
brimonidine
sympathomimetic
redues the proudtion of aqueous fluid and increases uveosacral outflow
definitive treatment in closed angle glaucoma
laser iridotomy
laser makes a hole in the iris allowing the aqueous humour to flow from the posteriour chamber to the anteriour chamber
relieves the pressure that was pushing the iris against the cornea and allows the humour to drain
management of open angle glaucoma
first line is
prostaglandin analogeu eyedrops
latanoprost
latanoprost
prostaglandin analgoeu eyedrop
purpose of prostaglanding analogue eydrops
increase uveoscleral outflow
increasing drainage of aqueous humour
side effects of prostaglandin analogue
eyelash growth
eyelid pigmentation
iris pigmentation
other options to treat open angle glaucoma
beta blockers- timolol
carbonic anhydrase inhibitors
sympathomimetics
treating open angle glaucoma if eyedrops ineffective
trabulectomy
create a new channel from the anteiour chamber through the sclera to a location under the conjunctiva
causes a bleb under the conjunctuva where the aqueous humour drains
then reabsorbed from this bleb into general circulation
measuring intraocular pressure
goldmann applanation tonometry
non contact tomonoetry
