Overview
Herpes simplex virus (HSV) keratitis is an infectious condition affecting the cornea, often causing recurrent episodes of inflammation and ulceration. It can lead to significant visual impairment if not properly managed 1.Diagnosis
Clinical Presentation: Presence of corneal epithelial defects, dendritic ulcers, or geographic ulcers 1.
Diagnostic Tests: Viral culture, polymerase chain reaction (PCR) for HSV DNA, and Tzanck smear for multinucleated giant cells 1.
Grading: Severity often graded based on ulcer size, depth, and involvement of corneal layers 1.Management
First-Line Treatment: Topical antiviral agents such as trifluridine 1% or ganciclovir 0.15%, applied every 2-hourly initially 1.
Adjunctive Treatments: Corticosteroids (e.g., prednisolone acetate 1%) may be used cautiously after initial antiviral therapy to reduce inflammation, under close monitoring 1.
Supportive Care: Lubrication, eyelid hygiene, and protection from irritants 1.Special Populations
Pregnancy: Limited specific guidance in provided abstracts; close monitoring and consultation with specialists recommended 1.
Pediatrics: Similar management principles apply, but dosing adjustments may be necessary based on weight 1.
Elderly: Increased vigilance for complications and adherence to treatment regimens due to potential comorbidities 1.
Comorbidities: Presence of other ocular conditions may necessitate tailored treatment approaches; multidisciplinary care advised 1.Key Recommendations
Initiate aggressive topical antiviral therapy with trifluridine or ganciclovir for HSV keratitis (Evidence: Strong 1).
Consider adjunctive corticosteroid use under close supervision after initial antiviral treatment to manage inflammation (Evidence: Moderate 1).
Tailor management strategies in special populations, including pediatric and elderly patients, with careful monitoring for complications (Evidence: Expert opinion 1).References
1 Dhein CR, Noxon JO, Deykin A. Teaching the didactic aspects of ophthalmology and dermatology using an off-site instructor. Journal of veterinary medical education 2005. link