Treatment of Viral Conjunctivitis
Viral conjunctivitis requires no antimicrobial treatment and should be managed with supportive care only, as it is self-limited and antibiotics provide no benefit while risking unnecessary toxicity. 1
Supportive Care Measures
The cornerstone of management involves symptomatic relief through non-pharmacologic and topical interventions:
- Artificial tears provide lubrication and comfort, and can be refrigerated for additional soothing effect 1, 2
- Cold compresses reduce inflammation and provide symptomatic relief 1
- Topical antihistamines may be used for symptomatic relief of associated itching 1
- Patients should be instructed to clean eyelids gently with warm water to remove discharge 1
Critical: Avoid Antibiotics
Antibiotics must be avoided entirely in viral conjunctivitis as they provide no therapeutic benefit and may cause drug toxicity, allergic reactions, and contribute to antimicrobial resistance. 3, 1, 4
This represents a strong recommendation from the American Academy of Ophthalmology, as viral infections will not respond to antibacterial agents regardless of severity 3
When to Consider Topical Corticosteroids
Corticosteroids should be reserved for severe cases only and require close ophthalmology supervision:
- Consider only for: marked chemosis, epithelial sloughing, membranous conjunctivitis, or pseudomembrane formation 3, 1
- Requires: regular monitoring of intraocular pressure and periodic pupillary dilation 1, 4
- Caution: may prolong viral shedding and can worsen herpes simplex virus infections if misdiagnosed 4
- Patients on corticosteroids need ophthalmology follow-up within 1 week 1
Infection Control: Breaking the Chain of Transmission
Patient education is critical to prevent epidemic spread:
- Advise patients to minimize contact with others for 10-14 days from symptom onset 1, 4
- Hand hygiene: wash hands frequently with soap and water 3, 4
- Avoid sharing: towels, pillows, cosmetics, or any personal items 3, 4
- No contact lens wear during active infection 4
- Patients should avoid touching or rubbing their eyes 4
The ophthalmologist plays a critical role in breaking the chain of transmission through proper patient education 3
Healthcare Setting Precautions
- Disinfect tonometers with dilute bleach (sodium hypochlorite) at 1:10 concentration 3
- Note: 70% isopropyl alcohol, 3% hydrogen peroxide, and ethyl alcohol are no longer recommended for tonometer disinfection 3
- Disinfect surfaces with EPA-registered hospital disinfectant according to label directions 3, 4
- Consider abbreviated examination in dedicated exam rooms to limit exposure 1
Follow-Up Recommendations
- Severe cases: re-evaluate within 1 week with interval history, visual acuity measurement, and slit-lamp biomicroscopy 1
- Patients not on corticosteroids: return only if symptoms persist beyond 2-3 weeks 1
- Monitor for: development of subepithelial infiltrates, which can occur weeks after initial infection 1
- Expected course: most cases resolve within 5-14 days without intervention 4
Red Flags Requiring Immediate Ophthalmology Referral
Refer urgently if any of the following are present:
- Visual loss or decreased vision 1, 4
- Moderate or severe pain (viral conjunctivitis should be minimally painful) 1, 4
- Corneal involvement (dendritic lesions, infiltrates, or ulceration) 1, 4
- Lack of response to therapy after 2-3 weeks 1
- History of herpes simplex virus eye disease 1, 4
- Immunocompromised status 1, 4
- Vesicular rash on eyelids or nose (suggests herpes zoster ophthalmicus) 4, 2
Common Pitfalls to Avoid
- Do not prescribe antibiotics reflexively - this is the most common error and provides no benefit while causing potential harm 3, 1
- Do not use combination antibiotic-steroid preparations unless herpes simplex has been definitively ruled out, as steroids can cause corneal perforation in HSV keratitis 5
- Do not underestimate contagiousness - inadequate patient education leads to community spread and workplace/school outbreaks 4
- Do not use topical corticosteroids without ophthalmology involvement - risks include elevated intraocular pressure, cataract formation, and prolonged viral shedding 1, 4