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A+
How do you manage globe rupture - (answer)Emergency!!!
Do not palpate if globe rupture is suspected (vitreous extrusion, teardrop pupil, tenting, etc.)
measure IOP
Keep head elevated 30-45 degrees → decreases IOP
Penetrating trauma: tetanus prevention, do not remove object
how long do you irrigate an eye for after chemical exposure - (answer)30 mins
what type of Orbital Blowout Fracture is mc - (answer)floor fracture → globe "sinks"
dx?
blunt trauma + Diplopia, Upward gaze, Cheek numbness - (answer)Orbital Blowout Fracture
,(Cheek numbness = infraorbital nerve injury)
how do you manage Orbital Blowout Fracture - (answer)Emergency ophthalmology consult
CT to evaluate injury
Nasal decongestant
Cold compress
Antibiotics
tx for corneal abrasion in non-contact lens wearers - (answer)erythromycin or sulfacetamide
F/u with ophthalmologist within 24 hours
tx for corneal abrasion in contact lens wearers - (answer)pseudomonal coverage (cipro, oflaxacin, or gentamycin)
,F/u with ophthalmologist within 24 hours
when do you give an eye patch for a corneal abrasion - (answer)>5mm abrasions (and only for 24 hours max)
what bacteria is the mc cause of corneal ulcer - (answer)staph or strep (Pseudomonas in contact lens wearers)
Fluorescein stain shows a corneal infiltrate with epithelial defect. Dx? - (answer)Corneal ulcer
also - Culture the lesion!!
empiric tx for a corneal ulcer - (answer)Topical fluoroquinolone (moxifloxacin, gatifloxacin)
Same-day ophthalmology referral
cataracts is d/t a build up of ______ - (answer)protein
as a result Light "bounces around the lends" vs going through and getting absorbed
dx?
, Insidious onset of decreased vision that is bilateral but asymmetrical
Double vision, excess glare, reduced color perception - (answer)cataracts
Triangular overgrowth of conjunctiva towards cornea - (answer)Pterygium
Recurrence is common after excision
dx?
Acute, painless, blackened vision in the eye
"Curtain coming down"
+/- floaters or flashing lights
Afferent pupillary defect - (answer)Retinal detachment
afferent defect = Something is blocking signals going TOWARD the brain
Management of retinal detachment - (answer)Optho emergency: keep pt supine w/ head turned toward the side of the
detachment