| Summary: | Purpose: To introduce a case of corneal endothelial toxicity caused by Asclepias curassavica (Milkweed) in Korea. Observations: A 37-year-old Asian man presented with decreased vision and redness in the right eye, which developed after contact with Asclepias curassavica. At presentation, best-corrected visual acuity (BCVA) was 20/60 in the right eye. Slit lamp examination demonstrated severe corneal stromal edema with Descemet's folds and conjunctival hyperemia. We prescribed topical prednisolone acetate 1% eye drops (8 times a day), cyclosporine 0.1% (once a day) and oral prednisolone (30 mg a day for 3 days). One day later, the BCVA improved to20/40 and marked improvement in corneal edema was observed. At 5 days, BCVA was 20/22 and anterior segment examination showed minimal corneal edema with resolution of Descemet's folds. At 2 weeks, BCVA was 20/20 in the right eye and corneal edema completely resolved. Conlcusions and importance: This case suggests that high index of suspicion for toxicity from Asclepias species is necessary when encountered with patients who present with corneal edema after exposure to these plants. Aggressive anti-inflammatory treatment might be helpful for early recovery, at least for young patients. Keywords: Asclepias, Corneal edema, Corneal endothelial dysfunction, Inflammation, Millkweed
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