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Ophthalmic Emergencies
Dr. abdulrhman alsogaihe Consultant ophthalmologist
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Common causes A-Trauma blunt , penetrating B-chemical burn
C-Infection : cellulitis, endophthalmitis , contact lens, conjunctivitis , D-vascular – CRAO, CRVO,GCA, AION E-Glucoma : AACG F-RD
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history General Unilateral or bilateral ? Time of onset Recurrence
Recent history of ocular disease or surgery Other diseases, specifically cardiac, vascular, or autoimmune Current medications or recent changes to medications Changes in vision (lost, blurred, or decreased vision; diplopia, sudden or gradual) Visual acuity before the current event Other symptoms (pain, nausea, vomiting)
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physical examination Visual acuity, IOP (tonometery), Slit Lamp
-inspection : extent of wound, eye content involvement , deviation , Pupillary response damage to the optic nerve may not be seen for weeks relative afferent pupillary defect - early sign often develops within seconds of ischemia or optic nerve damage Extraocular eye movements, and Visual Fields fundus
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CT – image of choice Labs ESR, CRP, CBC/diff Path Corneal scraping
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A-Chemical injury alkaline exposure Acid exposure Corneal Scarring
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Copious Irrigation Immediate, copious 30 minutes – Morgan Lens
lactated Ringer's solution Normal pH—between 7.3 to 7.6
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B-Trauma 1-Blunt trauma
Superficial FB , corneal abrasion fractures, hemorrhage, or damage to the globe or adnexa Fx sharp edges that can cause entrapment or damage to the muscle or globe Retrobulbar hemorrhage - analogous to compartment syndrome elevated intraocular and extraocular pressures, causing permanent damage Hyphema warrants suspicion for penetrating trauma, orbital fracture, acute glaucoma, or retinal detachment
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Rx of hyphema r/o rupture Restrict activity
Cycloplegia, corticosteroids Control intraocular pressure r/o sickle/sickle trait
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Rx Corneal Abrasion Cycloplegia Topical antibiotic Topical NSAID
Ointment – No aminoglycoside – (Tobrex, Gent) Topical NSAID eye patch
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O N A
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Management control swelling and pressure Cold compresses
Nasal decongestants Lateral canthotomy Abx (topical, sys) Protection of eye
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2-Penetrating Injury r/o rupture eye protected – eye shield CT
If rupture no further exam - EUA eye protected – eye shield CT systemic antibiotics initiated- NOT topical NPO, time of last meal Sympathetic ophthalmia
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c-Inflammatory Orbital celluitis Endophthalmitis
inflammation in the vitreous chamber staphylococci, streptococci, Bacillus cereus, Haemophilus influenzae, and Candida Anterior uveitis or iritis inflammation in anterior eye structures potential for elevated pressures Causes: trauma, autoimmune diseases, infection, or malignancy Keratitis Inflammation of the cornea Causes: bacterial, viral, or fungal infection Can rapidly cause blindness or perforation
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Other Conjuctivitis -Bacterial , viral , allergic ….etc
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D-VASCULAR central retinal artery occlusion (CRAO) painless
Central retinal vein occlusion (CRVO) painless GCA painful
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CRAO thrombus, embolus, or vasculitis blocks blood flow to the central retinal artery, resulting in ischemia and infarction of the retina Cherry-red sopt
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CRVO
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E- AACG High IOP -sever pain , decrease vision
Etiology - pupillary block 90% aqueous flow from the posterior chamber is occluded where the lens meets the iris posterior chamber pressure builds, bowing the iris and narrowing the angle until the outflow pathway is obstructed
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age > 30 yrs hyperopia female gender Peak age 55-70
3-4x >risk than males
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Rx of AACG Reduce IOP with medication followed by surgery
topical pilocarpine 2% Q 5 min x 3, timolol 0.5% x 1, acetazolamide 500 mg orally or IV laser iridectomy Control Pain and vomiting Prophylactic iridectomy of fellow eye
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F-RD separates neuorosensory layer of retinal from pigment deep layer
Flashes, floater, loss of vision& fields Macular involvement can lead to severe, permanent vision loss
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immediate surgical intervention
PX worsens with macular involvement & duration
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Conclusion History and physical exam can help make a prompt and accurate diagnosis of ophthalmic emergencies Important to administer appropriate therapies until the ophthalmologist can assess the patient
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