Treatment of Viral Conjunctivitis

General Management Approach

• The American Academy of Ophthalmology recommends that patients with viral conjunctivitis minimize contact with others for 10-14 days from symptom onset in the last affected eye to prevent transmission 1, 2
• Patient education about the highly contagious nature of the virus is essential, as adenovirus can survive for weeks on surfaces without proper disinfection 3, 4

Symptomatic Treatment Options

• The American Academy of Ophthalmology suggests that artificial tears can provide comfort and help dilute viral particles on the ocular surface 3, 5
• Cold compresses can reduce inflammation and provide symptomatic relief 1
• Topical antihistamines may help alleviate itching and discomfort 3, 5
• Oral analgesics can be used for pain management 3, 1
• Antibiotics should be avoided as they provide no benefit for viral infections and may cause adverse effects 1, 4

Special Considerations for Severe Cases

• For severe adenoviral keratoconjunctivitis, topical corticosteroids may be considered, but close follow-up is mandatory 3, 1
• When using corticosteroids, monitor for increased intraocular pressure and cataract formation 3, 5
• Prefer corticosteroids with poor ocular penetration or site-specific options to minimize side effects 1, 2
• Taper slowly to the minimum effective dose 1, 4
• Be aware that animal models suggest corticosteroids may prolong viral shedding 3, 1

Emerging Treatments (Not Yet Established)

• Povidone-iodine has been investigated due to its broad antimicrobial spectrum, and may reduce viral titers and shorten clinical course 3, 1
• Off-label topical ganciclovir 0.15% gel has shown potential benefit against specific adenovirus serotypes, but further research is needed 3, 5

Management of Complications

• For membranous conjunctivitis, debridement of membranes may prevent corneal epithelial abrasions or permanent cicatricial changes 3, 1
• For subepithelial infiltrates, mild cases require only observation, while cases with blurring, photophobia, and decreased vision may require topical corticosteroids at minimum effective dose 3, 1

Prevention of Transmission

• In clinical settings, consider abbreviated exams in dedicated rooms with limited physical interaction 3, 5
• Disinfect exposed surfaces with appropriate disinfectants, such as sodium hypochlorite 6, 4
• Consider triaging patients with suspected viral conjunctivitis to a dedicated "red-eye room" during epidemics 7, 6

Follow-up Recommendations

• Patients with severe disease should be re-evaluated within 1 week 3, 5
• Patients not treated with corticosteroids should return if symptoms persist beyond 2-3 weeks 3, 1
• Follow-up visits should include interval history, visual acuity measurement, and slit-lamp biomicroscopy 3, 5

Special Viral Conjunctivitis Types

• For HSV conjunctivitis, consider ganciclovir 0.15% gel, trifluridine 1% solution, or oral antivirals, and avoid corticosteroids 8
• For VZV conjunctivitis, consider oral antivirals for persistent cases, and topical antibiotics may prevent secondary infection 8, 9
• For molluscum contagiosum-related conjunctivitis, treat the causative lesions through incision and curettage, excision, or cryotherapy 8, 10

Management of Viral Conjunctivitis

Specific Viral Etiologies Requiring Different Management

• The American Academy of Ophthalmology recommends topical antibiotics to prevent secondary bacterial infection in patients with VZV conjunctivitis, as vesicles undergo necrosis 11, 12
• Topical antivirals alone have not been shown to be helpful in VZV conjunctivitis, but may be used as additive treatment in unresponsive patients 11, 12
• Oral antivirals, such as acyclovir 800 mg five times daily for 7 days, valacyclovir 1000 mg every 8 hours for 7 days, or famciclovir 500 mg three times daily for 7 days, are beneficial for persistent or recalcitrant acute/subacute VZV disease in immunocompetent patients 11, 12
• Caution is advised when using oral antivirals in patients with impaired renal clearance 11, 12
• Treatment of Molluscum contagiosum-related conjunctivitis requires removal of the causative eyelid lesions through incision and curettage, simple excision, excision and cautery, or cryotherapy 11, 12
• The conjunctivitis may require weeks to resolve after elimination of the lesion in Molluscum contagiosum-related conjunctivitis 11, 12

Red Flags Requiring Ophthalmology Referral

• Conjunctival scarring is a red flag requiring immediate ophthalmology referral 12

Treatment of Viral Conjunctivitis with Emphasis on Infection Control and Management of Severe Cases

Infection Control Measures

• The American Academy of Ophthalmology recommends disinfecting surfaces with EPA-registered hospital disinfectants or sodium hypochlorite (1:10 dilution of household bleach) to prevent transmission of adenovirus, which can survive for weeks on surfaces without proper disinfection 13
• The American Academy of Ophthalmology advises against using topical antibiotics for viral conjunctivitis, as they provide no benefit and may cause toxicity or allergic reactions, emphasizing the importance of proper diagnosis to guide treatment 13

Management of Severe Cases

• The American Academy of Ophthalmology suggests that corticosteroids may prolong viral shedding, and they can worsen HSV infections if misdiagnosed, highlighting the need for careful consideration and mandatory close ophthalmology follow-up when using corticosteroids for severe adenoviral keratoconjunctivitis 13
• The American Academy of Ophthalmology recommends avoiding the use of corticosteroids without confirming the diagnosis is not HSV, as corticosteroids can worsen HSV infections and lead to corneal scarring and vision loss 13

Common Pitfalls to Avoid

• The American Academy of Ophthalmology advises deferring intraocular pressure measurement during acute conjunctivitis unless absolutely necessary, as tonometer tips can transmit infection despite disinfection efforts 13

Management of Viral Conjunctivitis

General Principles

• The American Academy of Ophthalmology recommends considering topical corticosteroids for severe adenoviral keratoconjunctivitis with subepithelial infiltrates causing blurred vision, photophobia, or decreased visual acuity, but only with mandatory close ophthalmology follow-up 14
• For severe cases, corticosteroids with poor ocular penetration, such as fluorometholone, rimexolone, or loteprednol, should be used to minimize intraocular pressure elevation and cataract formation 15, 14

Specific Viral Etiologies

• The American Academy of Ophthalmology recommends topical antiviral treatment, such as ganciclovir 0.15% gel or trifluridine 1% solution, for Herpes Simplex Virus (HSV) conjunctivitis, and oral antivirals, such as acyclovir, valacyclovir, or famciclovir, for severe cases 16, 15, 14
• For Varicella Zoster Virus (VZV) conjunctivitis, topical antibiotics are recommended to prevent secondary bacterial infection, and oral antivirals, such as acyclovir, valacyclovir, or famciclovir, may be beneficial for persistent or recalcitrant disease 16, 15
• Physical removal of the causative eyelid lesions is required for Molluscum Contagiosum-related conjunctivitis, and treatment options include incision and curettage, simple excision, excision and cautery, or cryotherapy 16, 15

Follow-Up and Referral

• The American Academy of Ophthalmology recommends re-evaluation within 1 week for severe disease, and follow-up visits should include interval history, visual acuity measurement, and slit-lamp biomicroscopy 14
• Neonatal conjunctivitis requires immediate ophthalmology referral 16, 15, 14