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Published on: September 20, 2024
Fundal changes in children receiving Vigabatrin
Devendra Mishra1, Veena Kalra, Pradeep Venkatesh
1Child Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, Delhi 110 029, India. drdmishra@gmail.com
Insights
Ocular toxicity from Vigabatrin (VGB) can cause visual field defects. Simple ophthalmoscopy in pediatric patients detected surface wrinkling retinopathy and abnormal macular reflexes, indicating VGB
Area of Science:
- Ophthalmology
- Neurology
- Pharmacology
Background:
- Vigabatrin (VGB) is an antiepileptic drug associated with visual field defects.
- Assessing visual fields in young children and those with cognitive impairments is challenging.
Purpose of the Study:
- To investigate ophthalmoscopic abnormalities in pediatric patients undergoing Vigabatrin therapy.
- To determine if simple ophthalmoscopy can detect ocular toxicity from VGB.
Main Methods:
- Ophthalmoscopy was performed on seven pediatric patients receiving VGB.
- Patients had a median VGB treatment duration of 9 months (range, 3-32 months).
Main Results:
- Two out of seven patients (33.3%) exhibited abnormal ophthalmoscopic findings.
- Abnormalities included surface wrinkling retinopathy and abnormal macular reflexes.
- Findings align with previous reports on VGB ocular toxicity.
Conclusions:
- Simple ophthalmoscopy is effective in identifying ocular toxicity associated with Vigabatrin.
- Ophthalmological examination aids in managing antiepileptic drug (AED) therapy in patients on VGB.
Abstract:
Visual field defects and other abnormalities are reported in patients receiving the newer antiepileptic Vigabatrin (VGB). Field testing in children younger than 6 years and those with mental retardation is difficult. The authors, therefore, studied ophthalmoscopic abnormalities in seven pediatric patients receiving VGB for median duration of 9 month (range, 3-32 months). Abnormal findings were seen in two (33.3%) in the form of surface wrinkling retinopathy and abnormal macular reflexes. The proportion of abnormal findings was in agreement with previous reports. Thus it is concluded that simple ophthalmoscopy by an ophthalmologist picks up the abnormalities due to ocular toxicity of VGB, and helps in rationalizing further AED therapy in the clinic.
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