Toxocara optic neuropathy: clinical features and ocular findings
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Jae Ho Jung. Department of Ophthalmology, Pusan National University Yangsan Hospital, School of Medicine, Pusan National University, 20 Geumo-ro, Mulgum, Yangsan 50612, Korea. jungjaeho@pusan.ac.kr

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    Abstract:

    We evaluated thirteen eyes of twelve patients diagnosed clinically and serologically with Toxocara optic neuropathy. Eleven patients had unilateral involvement and one patient had bilateral optic neuropathy. Eight patients (66.7%) had a possible infection source to Toxocara. Six patients (50%) had painless acute optic neuropathy. Ten eyes had asymmetric, sectorial optic disc edema with peripapillary infiltration and three eyes had diffuse optic disc edema. Eosinophilia was noted in five patients (41.7%) and optic nerve enhancement was observed in eight of eleven eyes (72.7%) with available orbit magnetic resonance imaging (MRI). Mean visual acuity significantly improved following treatment [mean logarithmic of the minimum angle of resolution (logMAR) 0.94±0.56 at baseline and 0.47±0.59 at the final (P=0.02)]. Asymmetric optic disc edema with a peripapillary lesion and a history of raw meat ingestion were important clues for diagnosing Toxocara optic neuropathy. Additionally, Toxocara IgG enzyme-linked immunosorbent assay (ELISA) test and evaluating eosinophil may be helpful for diagnosis.

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Kwang-Dong Choi, Jae-Hwan Choi, Seo-Young Choi, et al. Toxocara optic neuropathy: clinical features and ocular findings. Int J Ophthalmol, 2018,11(3):520-523

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Publication History
  • Received:September 06,2017
  • Revised:November 21,2017
  • Adopted:
  • Online: March 13,2018
  • Published: