Acute Vision Loss Flashcards
Acute Vision Loss ?s
Monocoluar/binocular? Pain? Photophobia? Chronology? Other sx?
Pain w/ AVL suggests
cornea, iritis, acute glaucoma, optic neuritis
No pain w/ AVL suggests
retina, retinal vessels, brain
Photophobia w/ AVL suggests
uveitis (iritis/iridocyclitis), acute glaucoma, corneal abrasion/trauma
Eye Hx
Baseline vision w/ correction
Cataracts, glaucoma, mac degeneration, diabetic retinopathy
Traumas, surgeries, amblyopia, eye drops?
Age and Medical Hx
HTN, Dyslipidemia, Diabetes
Rheumatologic (RA, SLE, IBD)
Cancer
Review of systems Hx
Think stroke/TIA
HA, dizziness, numbness, weakness, nausea
PE Tools
Visual acuity chart (best corrected w/ pinhole). Don’t rush.
Flashlight/penlight.
Direct ophthalmoscope
Slit lamp
Eye Vital Signs
External exam VA Pupils Eye pressur Ocular motility Confrontation
Relative afferent pupillary defect (RAPD)
lesions of optic nerve (optic neuritis, ischemic optic neuropathy) or >50% retina (detachment, vascular occlusion)
Slit Lamp Examines what
Cornea, anterior chamber, iris
Extended eye exam
Direct Ophthalmoscope for red reflex, optic nerve (nasal side), vessels
Vascular acute vision loss
diabetes, vascular occlusions, amaurosis
Infectious acute vision loss
HSV/VZV, bacterial keratitis/contact lens use, endophthalmitis
Traumatic acute vision loss
abrasion, ruptured globe, hymphema
Autoimmune acute vision loss
Uveitis, optic neuritis, temporal arteritis
Metabolic acute vision loss
diabetes (lens swelling)
Iatrogenic acute vision loss
psych meds, immune modulators
Neoplastic acute vision loss
Don’t usually create ACUTE vision sx
Degenerative (age-related) acute vision loss
cataracts, glaucoma, AMD
Corneal abrasions
Anterior
Hx: sudden onset, painful, FBS, photosensitivity, tearing, blurred vision, Associated w/ trauma, FB, contact lens
Exam: Decreased acuity, fluorescein uptake, pain improves w/ topical anesthetics (CANNOT GIVE TO TAKE HOME)
Tx: Evert lids to remove foreign body, topical abx (polymixin-trimethoprim gtt or erythromycin for non CTL wearers and Vigamox gtt or Ciloxan ung for CTL wearers)
Epithelium heals quickly, breaks allow infection
Corneal ulcers
Infection of corneal stroma
Hx: untreated abrasion w/ secondary infection
Exam: corneal INFILTRATE (focal opacity in stroma)
Tx: CONSULT ophthalmology for possible culture, abx or antifungal drops
Corneal edema
Opacification, dulling of light reflex
DDx: uveitis/inflammation, increased IOP (angle closure), corneal endothelial dystrophies
Ophtho or opto referral
Herpetic Keratitis
Hx: FBS, eye pain, photophobia, blurred vision; previous or current HSV or VZV; skin vesicles/SKIN RASH
Exam: dec acuity, possible fluorescein uptake (dendritic), possible corneal edema, possible AC cell/flare
Tx: OPHTO consult for dilated exam; treat w/ oral acyclovir/valacyclovir, topical abx to prevent secondary infection, cycloplegic