[Bilateral vascularized disciform corneal scar of herpetic origin in a child].

BACKGROUND: Bilateral keratitis is rare and can have various causes. For a good outcome after treatment, the correct diagnosis is decisive.

CASE REPORT: A 15-year-old boy presented to our clinic with recurrent keratoconjunctivitis and progressive loss of vision in both eyes since 6 years. The best corrected visual acuity was 0.1 in the right eye and 1/12 in the left eye. Slit-lamp examination verified keratitis disciformis with strongly vascularized corneal stromal scars without conjunctival follicles on both sides. Based on the clinical diagnosis, antiviral treatment was initiated. Best corrected visual acuity 8 weeks later increased to 0.4 in the right eye and 0.8 in the left eye and the corneal edema decreased in both eyes. Due to noncompliance the patient returned with a perforated corneal ulcer of the left eye, where an á chaud penetrating keratoplasty had to be performed.

RESULTS: Herpes simplex virus is one of the most common causes of keratitis and has different manifestations. In the treatment of keratitis disciformis the use of topical steroids is mandatory as there is an active immunological process. The use of systemic and local antiviral treatment is necessary at the same time in order to avoid reactivation of viral replication. Bilateral keratitis is relatively frequent in children.

CONCLUSION: Herpetic keratitis is now well treatable if the various manifestations of the disease are recognized early and an appropriate therapy is adjusted accordingly.