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Systemic Paraquat Intoxication Presenting with Peripheral Ulcerative Keratitis: A Case Report and Literature Review
Jung Lo1,2, Linda Yi-Chieh Poon1
1Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine , Kaohsiung, Taiwan.
Purpose:
To describe a rare case of systemic paraquat poisoning presenting with peripheral ulcerative keratitis.
Methods:
Case report and literature review.
Results:
Two days after a mouthful of paraquat ingestion, a 48-year-old man presented with painful oral ulcers, abnormal liver functions, and acute kidney injury, followed by the development of crescent-shaped corneal erosions along the limbus and progressive visual impairment in both eyes. Paraquat-induced peripheral ulcerative keratitis was suspected and the patient was treated with intensive topical steroid along with systemic steroid. He recovered completely with good visual outcomes after treatment.
Conclusions:
Peripheral ulcerative keratitis is usually an immune-mediated ocular condition, and may be a complication associated with systemic paraquat poisoning. Proper diagnosis and adequate treatment are important for visual recovery.
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