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Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy

Cilt: 16 Sayı: 3 30 Eylül 2025
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Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy

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Introduction Unilateral fixed mydriasis is frequently associated with neurologic emergencies such as third cranial nerve palsy. However, rare toxicologic mimics—particularly those caused by topical exposure to anticholinergic alkaloids—may present similarly and lead to unnecessary neuroimaging. Datura arborea, an ornamental plant of the Solanaceae family, contains potent tropane alkaloids capable of inducing transient pharmacologic mydriasis via muscarinic receptor blockade. Case Report A 42-year-old previously healthy male developed sudden-onset blurred near vision and photophobia in the left eye shortly after accidental ocular contact with a flowering plant branch. Examination revealed left-sided dilated, nonreactive pupil with preserved extraocular movements, intact lid position, and impaired accommodation. Neurologic and fundoscopic examinations were unremarkable. A retrieved plant specimen was identified as Datura arborea by a consulting botanist. Pharmacologic testing with 1% pilocarpine produced no miosis, confirming muscarinic antagonism. The patient was managed conservatively with ocular irrigation, lubrication, and photoprotection. Symptoms resolved completely within 48 hours without recurrence. Conclusion Topical exposure to Datura arborea can produce unilateral pharmacologic mydriasis that closely mimics third nerve palsy. Early recognition, targeted exposure history, and bedside pupillary testing can guide appropriate management and help avoid unnecessary neurologic evaluation.

Anahtar Kelimeler

Kaynakça

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Ayrıntılar

Birincil Dil

İngilizce

Konular

Acil Tıp

Bölüm

Olgu Sunumu

Yayımlanma Tarihi

30 Eylül 2025

Gönderilme Tarihi

14 Mayıs 2025

Kabul Tarihi

20 Haziran 2025

Yayımlandığı Sayı

Yıl 2025 Cilt: 16 Sayı: 3

Kaynak Göster

APA
Kocairi, G., Golcuk, Y., & Türkmen, T. B. (2025). Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy. Journal of Emergency Medicine Case Reports, 16(3), 102-104. https://doi.org/10.33706/jemcr.1698743
AMA
1.Kocairi G, Golcuk Y, Türkmen TB. Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy. Journal of Emergency Medicine Case Reports. 2025;16(3):102-104. doi:10.33706/jemcr.1698743
Chicago
Kocairi, Gülçim, Yalcin Golcuk, ve Tayyibe Büşra Türkmen. 2025. “Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy”. Journal of Emergency Medicine Case Reports 16 (3): 102-4. https://doi.org/10.33706/jemcr.1698743.
EndNote
Kocairi G, Golcuk Y, Türkmen TB (01 Eylül 2025) Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy. Journal of Emergency Medicine Case Reports 16 3 102–104.
IEEE
[1]G. Kocairi, Y. Golcuk, ve T. B. Türkmen, “Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy”, Journal of Emergency Medicine Case Reports, c. 16, sy 3, ss. 102–104, Eyl. 2025, doi: 10.33706/jemcr.1698743.
ISNAD
Kocairi, Gülçim - Golcuk, Yalcin - Türkmen, Tayyibe Büşra. “Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy”. Journal of Emergency Medicine Case Reports 16/3 (01 Eylül 2025): 102-104. https://doi.org/10.33706/jemcr.1698743.
JAMA
1.Kocairi G, Golcuk Y, Türkmen TB. Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy. Journal of Emergency Medicine Case Reports. 2025;16:102–104.
MLA
Kocairi, Gülçim, vd. “Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy”. Journal of Emergency Medicine Case Reports, c. 16, sy 3, Eylül 2025, ss. 102-4, doi:10.33706/jemcr.1698743.
Vancouver
1.Gülçim Kocairi, Yalcin Golcuk, Tayyibe Büşra Türkmen. Ocular Anticholinergic Toxicity from Datura arborea: A Reversible Mimic of Third Nerve Palsy. Journal of Emergency Medicine Case Reports. 01 Eylül 2025;16(3):102-4. doi:10.33706/jemcr.1698743