Published date: Apr 29 2022

Journal Title: Journal of Ophthalmic and Vision Research

Issue title: April–June 2022, Volume 17, Issue 2

Pages: 296 – 302

DOI: 10.18502/jovr.v17i2.10806

Mohammad Reza KhaliliPoostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

Shahla HosseiniPoostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

Mohammad Shirvanidrshirvani69@gmail.comPoostchi Ophthalmology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran

Maryam Sadat SadatiDepartment of Dermatology, Shiraz University of Medical Sciences, Shiraz, Iran

Purpose: To report a case of optic neuropathy (ON) following botulinum toxin A (BTA) injection into the medial rectus muscle.

Case Report: We describe a 37-year-old man with unilateral ON after a BTA injection into the left medial rectus for treatment of traumatic sixth nerve palsy. Oral prednisolone was prescribed for 14 days. After two weeks, his visual acuity returned to 20/20.

Conclusion: Botulinum toxin-induced neuropathy is a rare and vision-threatening complication of BTA. In patients with recent injection of BTA who present with visual complaints, botulinum toxin-induced neuropathy should be considered.

Keywords: Botulinum Toxin, Diplopia, Optic Neuropathy

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