Search

The antiepileptic drug vigabatrin is known to cause permanent loss of vision. Both visual field testing and electroretinogram are used to detect retinal damage. Adult data on optical coherence tomography (OCT) shows that retinal nerve fiber layer (RNFL) thinning may be an early indicator of vigabatrin-induced retinal toxicity. The purpose of this study was to investigate whether OCT can detect early vigabatrin-induced retinal toxicity in children.Pediatric patients (≤18 years of age) requiring vigabatrin for seizure control who were followed at our institution were invited to participate. Patients were examined according to manufacturer guidelines, with most examinations taking place under general anesthesia. RNFL thickness was measured by OCT (Stratus Model 3000, Zeiss) and compared to total cumulative dose of vigabatrin. In most cases, indirect ophthalmoscopy, fundus photography, and electroretinography were also performed.OCT and complete dosing data was available for 19 patients. Patients with tuberous sclerosis (TS, n = 12) received higher cumulative doses (mean, 1463 g) than non-TS patients (mean, 351 g, P = 0.044). RNFL thinning was detected in the nasal (P 0.01), superior (P 0.01), and inferior (P 0.05) quadrants in patients with TS, particularly once cumulative dose exceeded 1500 g.In our study population of patients with TS, higher cumulative doses of vigabatrin were associated with RNFL thinning in the nasal, superior, and inferior quadrants. These findings were pronounced once cumulative dose exceeded 1500 g. This pattern of RNFL thinning is similar to what has been shown in adult patients taking vigabatrin.

OBJECTIVES Criteria that predict the need for ocular injury treatment in children who suffer periocular facial scald burns are not known. The purpose of this study was to evaluate the incidence and management of ocular injuries among children sustaining facial scald burns and to determine predictors of injuries requiring additional treatment. METHODS Children treated at a burn center with periocular facial scald burns were analyzed. Patient and injury profiles were compared between those evaluated and not evaluated by an ophthalmologist. Factors associated with an ocular injury requiring treatment were determined, and treatment differences before and after ophthalmology consultation were evaluated. RESULTS Seventy-three children with facial scald burns were identified, none with a full-thickness injury. Thirteen children had ocular findings on examination including corneal abrasion, conjunctivitis, scleral burn, and chemosis of the conjunctiva. Twenty-three patients received erythromycin ointment, only 8 of whom had a documented ocular injury. Children seen by an ophthalmologist (n = 24) more often had a positive finding on examination (37.5% vs 8.2%, P = 0.007) and received treatment (66.7% vs 14.3%, P < 0.001). Only 4 patients had modification in their treatment plan after consultation, 3 of whom were started on treatment despite not having a positive finding on examination. CONCLUSIONS Ocular injury after periocular facial scald burns is an infrequent finding. Among children with partial-thickness periocular facial scald burns, initial evaluation and treatment without ophthalmology consultation are appropriate. Ophthalmic antibiotic ointment is an appropriate initial treatment in most symptomatic patients, with ophthalmologic consultation being limited to children without symptomatic improvement.