A 63-year-old male experienced sudden diplopia after 9 weeks of administration of pegylated interferon
(IFN) α-2b and ribavirin for chronic hepatitis C (CHC). Ophthalmologic examinations showed ptosis on the
right upper lid and restricted right eye movement without any other neurological signs. A brain imaging study
and repetitive nerve stimulation test indicated no abnormality. The acetylcholine receptor antibody titer and
response to acetylcholinesterase inhibitors were negative, and the results of thyroid function tests were normal.
The patient’s ophthalmological symptoms improved rapidly 3 weeks after discontinuation of pegylated IFN α
-2b and ribavirin. The ocular myasthenia associated with combination therapy of pegylated IFN α-2b and
ribavirin for CHC is very rarely reported; therefore, we present this case with a review of the various eye
complications of IFN therapy. (Korean J Hepatol 2009;15:209-215)
Autoimmune Neuromuscular Diseases Induced by Immunomodulating Drugs Songkit Supakornnumporn, Bashar Katirji Journal of Clinical Neuromuscular Disease.2018; 20(1): 28. CrossRef
Myasthenia Crisis Induced by Pegylated-Interferon in Patient With Chronic Hepatitis C Su Jung Baik, Tae Hun Kim, Hye In Kim, Jeong Yeon Rhie Medicine.2016; 95(21): e3782. CrossRef
Pegylated Interferon Induced Myasthenia Crisis—A Case Report Jonathan P. Congeni, Robert B. Kirkpatrick Journal of Clinical Neuromuscular Disease.2013; 14(3): 123. CrossRef
