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Acute red eye (Aetiology (Trauma Conjunctiva: conjunctival FB Cornea:…
Acute red eye
Aetiology
Trauma
Conjunctiva:
conjunctival FB
Cornea:
corneal abrasion, corneal FB
Retina:
retinal haemorrhage
Globe:
penetrating eye injury
Chemical injuries (acid/alkali)
Idiopathic
Globe:
acute glaucoma
Infection/inflammation
Eyelid:
blepharitis, stye, trichiasis, melbomian cyst/chalazion
Conjunctiva:
conjunctivitis (infectious, allergic)
Sclera:
scleritis/keratitis, episcleritis
Iris:
acute anterior uveitis/iritis
Cornea:
corneal ulcer
Globe:
endophthalmitis
Orbit:
orbital cellulitis, HSV ophthalmicus
Vascular
Conjunctiva:
subconjunctival haemorrhage
Retina:
retinal haemorrhage
Degenerative
Eyelid:
ectropion, entropion
Diagnosis
Examination
External eye examination
Skin changes, trauma, discharge from eye.
ectropion/entropion/trichiasis, evert lids for FB
CN examination
Visual acuity, movements, pupillary reflexes
Ophthalmoscopy
Check retina (haemorrhages, CVD changes, optic nerve)
Examination
Imaging
Fluorescein examination (corneal ulcers)
Bedside
Obs (fever if infection; malignant HTN can cause
subconjunctival haemorrhage)
History
DH
Eye drops, anticoagulants,
allergies (abx etc.)
FH
Glaucoma, ocular disorders
PMH
CVD disease e.g. HTN, DM
Contact lens wearer, glasses prescription
SH
Occupation (chemical/trauma),
leisure activities (trauma), smoking, alcohol
PC/HPC
Redness (site i.e. uni/bilateral, onset, duration, progression),
any pain, visual changes, flashes/floaters, photophobia,
discharge, grittiness/discomfort, trauma/chemicals, prev episodes
Definition
Rapid onset redness of
one or both eyes
Epidemiology
Common complaint
Clinical
presentation
Visibly red eye
Management
Conservative
Identify and manage cause
Urgent referral (corneal ulcer, acute glaucoma, corneal FB, anterior uveitis, scleritis, traumatic FB, chemical injury, neonatal conjunctivitis)