DDx of Ocular Sxs Flashcards
More Common DDx for Burning?
Blepharitis, meibomitis, dry eye syndrome, conjunctivitis (infectious, allergic, mechanical, chemical)
Less Common DDx for Burning?
Corneal defects (usually w/ fluorescein staining of K), inflamed pterygium or pinguecula, episcleritis, SLK, ocular toxicity (medication, makeup, CL solutions), Contact lens-related problems
Most Common DDx for Transient Vision Loss (vision returns to normal within 24 hours, usually within 1 hr)
- Papilledema (few seconds and usually bilateral) ;
- Amaurosis fugax (few minutes and unilateral);
- Vertebrobasilar artery insufficiency (bilateral and usually few minutes);
- Migraine (10-60 minutes and with or without subsequent headache)
Less Common DDx for Transient Vision Loss (vision returns to normal within 24 hours, usually within 1 hr)
-Impending CRVO, Ischemic optic neuropathy, ocular ischemic syndrome (carotid occlusive disease), glaucoma, sudden change in BP, CNS lesion, optic disc drusen, orbital lesion (vision loss may be a/w eye movement)
DDx for Sudden, Painless Vision loss lasting >24 hrs? (most common)
Retinal artery or vein occlusion, ischemic optic neuropathy, GCA, vitreous hemorrhage, retinal detachment, optic neuritis (pain w/ eye movement in >50%), sudden discovery of pre-existing unilateral vision loss
DDx for Sudden, Painless Vision loss lasting >24 hrs? (Less common)
Other retinal or CNS disease (eg. Stroke), toxins (eg methanol poisoning), ophthalmic artery occlusion (may be a/w EOM deficits, ptosis)
DDx for gradual (over weeks, months or years), painless visual loss lasting >24 hours? (more common)
Cataract, refractive error, open angle glaucoma, chronic angle closure glaucoma, chronic retinal disease (eg. ARMD, Diabetic retinopathy)
DDx for gradual (over weeks, months or years), painless visual loss lasting >24 hours? (Less common)
Chronic corneal disease (eg. K dystrophy), optic neuropathy/atrophy (eg. CNS tumor),
DDx for painful vision loss lasting >24 hrs?
Acute angle closure glaucoma, optic neuritis (may have pain w/ eye movements), uveitis, endophthalmitis, corneal hydrops (keratoconus)
DDx for post-traumatic vision loss?
Eyelid swelling, K irregularity, hyphema, ruptured globe, traumatic cataract, commotio retinae, retinal detachment, retinal/vitreous hemorrhage, lens dislocation, traumatic optic neuropathy, cranial neuropathies, CNS injury, sympathetic ophthalmia (rare)
How do you make a diagnosis of non-physiologic vision loss?
Diagnosis of exclusion
DDx for distortion of vision? (most common)
Refractive error -including presbyopia, acquired myopia (eg. from cataract, diabetes, pregnancy, ciliary spasm, ciliary body rotation, medications, retinal detachment surgery), acquired astigmatism (eg. from anterior segment surgery, periorbital or eyelid edema/mass (eg. chalazion, orbital trauma), macular disease (eg. CSCR, macular edema, ARMD, CNVM), corneal irregularity, intoxication (eg. methanol, ethanol), pharmacologic (eg. scopolamine patch)
DDx for distortion of vision? (Less common)
Keratoconus, topical eye drops (eg. miotics, cycloplegics), retinal detachment, migraine (transient), hypotony, CNS abnormality (including papilledema), non-physiologic
DDx for Monocular Diplopia? (More common)
Refractive Error, incorrect spectacle alignment, corneal opacity or irregularity, cataract, iris defect (eg. iridectomy)
DDx for Monocular Diplopia? (Less common)
Dislocated natural lens or lens implant, macular disease, retinal detachment, CNS causes (rare), non-physiologic
DDx for typically intermittent Binocular Diplopia?
Myasthenia gravis, intermittent decompensation of an existing phoria
DDx for constant Binocular Diplopia?
- Isolated 6th, 3rd, or 4th CN palsy;
- orbital disease (thyroid eye disease;
- idiopathic orbital inflammation, tumor);
- cavernous sinus/superior orbital fissure syndrome,
- status post ocular surgery (eg. residual anesthesia, displaced muscle, muscle surgery, restriction from scleral buckle, severe aniseikonia after refractive surgery),
- status-post trauma (eg. orbital wall fx with EOM entrapment, orbital edema),
- convergence/divergence insufficiency,
- internuclear ophthalmoplegia,
- vertebrobasilar artery insufficiency,
- CNS lesions,
- spectacle problem
DDx for eyelash loss?
Trauma, Burn, cutaneous neoplasm (eg. sebaceous gland carcinoma), eyelid infection or inflammation, radiation, chronic skin disease (eg. alopecia areata), VKH, thyroid disease, trichotillomania
DDx for Eyelid Crusting? (Most common)
Blepharitis, meibomitis, conjunctivitis
DDx for Eyelid Crusting? (Less common)
Canaliculitis, NLD obstruction, dacryocystitis
DDx for Eyelid swelling that is a/w inflammation/erythema? (most common)
Hordeolum, blepharitis, conjunctivitis, preseptal or orbital cellulitis, trauma, contact dermatitis, herpes simplex or zoster dermatitis