Hidden perils of herbal medicine: A case of bilateral supraciliary effusion from inadvertent contamination

Herbal medicines are used worldwide due to their natural benefits and cultural acceptance. However, lack of regulatory oversight and improper manufacturing processes can result in contamination with toxic heavy metals, potentially causing systemic and ocular complications. We report a rare case of bilateral supraciliary effusion and induced myopia in a 50-year-old following ingestion of contaminated herbal medicine. Chemical analysis confirmed the presence of cadmium, lead, arsenic, and mercury at toxic levels. Ophthalmic examination demonstrated shallow anterior chambers with anteriorly displaced intraocular lenses, confirmed using an ultrasound biomicroscope. Prompt cessation of the herbal medicine and initiation of topical steroids and cycloplegics resulted in complete visual recovery within days. This case highlights the importance of considering herbal medicine use in the differential diagnosis of unexplained ocular symptoms. It underscores the critical need for robust regulatory frameworks, public education, and. interdisciplinary collaboration to prevent morbidity associated with contaminated alternative therapies.