Management of Sore Eyes
The management of sore eyes depends critically on identifying the underlying cause through targeted history and examination, with treatment ranging from simple supportive care for viral conjunctivitis to urgent ophthalmology referral for vision-threatening conditions.
Initial Assessment: Red Flags Requiring Immediate Ophthalmology Referral
Before initiating any treatment, you must identify emergent conditions that require same-day ophthalmology consultation 1:
- Vision loss or significant visual changes
- Severe photophobia (suggests anterior uveitis, keratitis, or acute angle-closure glaucoma)
- Proptosis (orbital cellulitis)
- Hyphema (blood in anterior chamber)
- Corneal ulceration
- Anisocoria (unequal pupils)
- Restricted extraocular movements
- Severe pain unrelieved by topical anesthetics
- Dendritic corneal lesions on fluorescein staining (HSV keratitis)
Key History Elements
Focus your questioning on 1, 2:
- Onset and duration (acute vs. chronic)
- Vision changes (blurring, loss, halos around lights)
- Contact lens use (increases risk of infectious keratitis)
- Trauma or chemical exposure
- Discharge characteristics (watery, purulent, mucoid)
- Itching (suggests allergic etiology)
- Systemic symptoms (fever suggests infection; joint pain suggests autoimmune)
- Rheumatologic disease history
Physical Examination Essentials
Perform these specific assessments 1, 2:
- Visual acuity testing using Snellen or Rosenbaum chart
- Pupillary reactions (check for afferent pupillary defect, anisocoria)
- Extraocular movements (restriction suggests orbital involvement)
- Inspect for redness pattern (diffuse vs. circumcorneal injection)
- Discharge evaluation (type and amount)
- Fluorescein staining if available (identifies corneal defects, dendritic lesions)
Management by Etiology
Allergic Conjunctivitis (Seasonal/Perennial)
For mild to moderate allergic conjunctivitis, start with topical antihistamine/mast cell stabilizers as first-line therapy 3, 4:
Initial approach:
- Environmental modifications: sunglasses as allergen barrier, cold compresses, refrigerated preservative-free artificial tears
- Avoid eye rubbing
- Consider hypoallergenic bedding, eyelid cleansers, frequent clothes washing
Pharmacologic treatment 3:
- First-line: Second-generation topical H1-receptor antagonists (more effective than over-the-counter antihistamine/vasoconstrictor combinations)
- Persistent/recurrent cases: Mast-cell stabilizers or combination antihistamine/mast-cell stabilizers
- Severe cases not controlled: Brief course (1-2 weeks) of low side-effect profile topical corticosteroids (fluorometholone or loteprednol preferred to minimize IOP elevation and cataract risk)
- Refractory severe cases: Topical cyclosporine 0.05% or tacrolimus
Important caveat: Avoid chronic vasoconstrictor use due to rebound vasodilation. Oral antihistamines may worsen dry eye 3.
Viral Conjunctivitis (Adenoviral)
Viral conjunctivitis is self-limited and requires primarily supportive care, with corticosteroids reserved only for vision-impairing subepithelial infiltrates 3:
Supportive management:
- Cold compresses
- Preservative-free artificial tears
- Strict hand hygiene and infection control (highly contagious)
Follow-up strategy 3:
- Patients not on corticosteroids: return if symptoms persist beyond 2-3 weeks
- Evaluate for corneal subepithelial infiltrates (typically appear ≥1 week after onset)
Treatment of subepithelial infiltrates 3:
- Mild cases: Observation only
- Cases with blurring, photophobia, decreased vision: Topical corticosteroids at minimum effective dose (fluorometholone or loteprednol preferred)
- Alternative: Cyclosporine 0.05% to 1% (helpful for reducing infiltrates)
Critical monitoring for steroid users 3:
- Regular IOP measurement and pupillary dilation to screen for glaucoma and cataract
- Taper to minimum effective dose once inflammation controlled
Avoid indiscriminate corticosteroid use as they can prolong adenoviral infections 3.
Herpes Simplex Virus (HSV) Conjunctivitis
HSV conjunctivitis requires antiviral therapy, and topical corticosteroids are absolutely contraindicated as they potentiate HSV epithelial infections 3:
Topical options:
- Ganciclovir 0.15% gel: 3-5 times daily (less toxic to ocular surface, preferred)
- Trifluridine 1% solution: 5-8 times daily (causes inevitable epithelial toxicity if used >2 weeks)
Oral antivirals (often combined with topical for better efficacy) 3:
- Acyclovir 200-400 mg five times daily
- Valacyclovir 500 mg 2-3 times daily
- Famciclovir 250 mg twice daily
Important: Oral antivirals alone may not prevent HSV blepharoconjunctivitis progression; adding topical antiviral is more effective 3.
Follow-up: Within 1 week with visual acuity, slit-lamp examination 3.
Neonatal HSV: Requires immediate pediatrician consultation—systemic HSV infection is life-threatening 3.
Varicella Zoster Virus (VZV) Conjunctivitis
VZV conjunctivitis in children with chickenpox should be treated with topical antibiotics to prevent secondary bacterial infection and cicatricial complications 3:
Treatment approach:
- Topical antibiotics: Prevent secondary infection as vesicles undergo necrosis (severe conjunctival scarring can lead to cicatricial ectropion)
- Topical antivirals alone: Not helpful for VZV conjunctivitis but may be added in unresponsive cases
Oral antivirals for persistent/recalcitrant disease 3:
- Acyclovir 800 mg five times daily for 7 days
- Valacyclovir 1000 mg every 8 hours for 7 days
- Famciclovir 500 mg three times daily for 7 days
Monitor for complications: Dendritic/stromal keratitis, corneal scarring, iritis/uveitis, secondary glaucoma 3.
Dry Eye Syndrome
For patients with sore eyes from dry eye syndrome, treatment escalates from artificial tears to punctal occlusion and autologous serum based on severity 5:
Mild to moderate dry eye:
- Preservative-free artificial tears (frequent application)
- Environmental modifications (humidifiers, eyeglass side shields, moisture chambers)
- Avoid exacerbating factors
Moderate dry eye:
- Temporary punctal plugs (trial before permanent occlusion)
- Topical cyclosporine or lifitegrast
Severe dry eye:
- Permanent punctal occlusion: Thermal cautery (more effective than laser); stepwise approach (one punctum per eye per session)
- Autologous serum drops 20%: Improve symptoms and corneal staining in Sjögren's syndrome and GVHD
- Filamentary keratitis: Debride filaments; consider N-acetylcysteine 10% mucolytic
- Scleral lenses: Effective but require patient capability for insertion/removal
- Oral cholinergic agonists (for Sjögren's with dry mouth): Cevimeline or pilocarpine 5 mg four times daily
Infection Control for Viral Conjunctivitis
Critical measures to prevent transmission 3:
- Disinfect tonometer tips with 1:10 sodium hypochlorite (100 disinfection cycles maximum) or use disposable tips
- Consider deferring IOP measurement unless absolutely necessary
- Wipe exposed surfaces with EPA-registered hospital disinfectant
- During epidemics: triage patients to dedicated "red-eye room"
Common Pitfalls to Avoid
- Never use topical corticosteroids for HSV conjunctivitis—they worsen epithelial infections 3
- Avoid indiscriminate antibiotic use—can induce toxicity without clear bacterial indication 3
- Don't use topical trifluridine >2 weeks—inevitable epithelial toxicity 3
- Screen for glaucoma/cataract with prolonged steroid use—measure IOP regularly and dilate pupils 3
- Don't miss neonatal HSV—requires immediate systemic evaluation (life-threatening) 3