Opthalmology Flashcards
Features of viral conjunctivitis
Bilateral Watery discharge Easy to spread Normal vision Itchy Preauricular adenopathy No Rx
Features of bacterial conjunctivitis
Unilateral Purulent, thick discharge Hard to spread Normal vision Not itchy No adenopathy Rx w/ topic ABX
Features of subconjunctival hemorrhage
Doesn’t affect sight
Spontaneously resolves
Features of Uveitis
Caused by autoimmune diseases
Photophobia
Dx - Slit lamp exam
Rx - Topical steroids
Quick features of Glaucoma
Presents w/ pain
Fixed midpoint pupil
Dx - Tonometry
Rx - Acetazolamide, mannitol, pilocarpine, laser trabeculoplasty
Features of ocular trauma
Feels like sand in the eyes
Dx - Fluorescein stain
Rx - None
Presentation of chronic glaucoma
Asymptomatic, found on routine screening
Confirmation of chronic glaucoma
Tonometry
Rx chronic glaucoma
Prostaglandin analogs Topical BBs Topical carbonic anhydrase inhibitors Alpha-2 agonists Pilocarpine Laser trabeculoplasty (medicine fails)
Presentation of acute angle closure glaucoma
Sudden onset extremely painful red eye hard on palpation
Pain precipitated by going from light to dark
Pupil doesn’t react to light
Cup to disc ratio > 0.3
Dx acute angle closure glaucoma
Tonometry
Rx acute angle closure glaucoma
IV acetazolamide
IV mannitol
Pilocarpine, BBs, Apraclonidine to constrict pupil
Laser iridotomy
Feature of herpes keratitis
Infection of cornea
Red, swollen and PAINFUL
Confirm herpes keratitis
Fluorescein staining showing dendritic pattern
What to NEVER give in herpes keratitis
Steroids
Makes it worse
Rx herpes keratitis
Oral acyclovir, famcyclovir, valacyclovir
Topical trifluridine, idoxuridine
Resistant - Foscarnet
Causes of cataracts
Old age
Light
Trauma