2020年8月11日 · Single-fiber EMG (SFEMG) is a highly sensitive test for ocular myasthenia gravis (OMG) that provides quantitative measurement of neuromuscular transmission. 1,2 It plays a pivotal role in diagnosing patients with OMG because serologic testing is positive in <50% of patients with OMG.

One important test to help diagnose myasthenia gravis is called a nerve conduction study/electromyogram (sometimes called “EMG” for short). In part of this test, a small electrical stimulation is delivered to a nerve, and the responses are measured from a muscle.

Electromyography (EMG) of the extraocular muscles has afforded insight into innervational patterns of common and uncommon diseases affecting ocular

眼动（Eye tracking） 原理：通过追踪眼球运动来记录注视点和眼动轨迹的技术。眼动仪的眼动追踪最常见的一个基本原理是“脑-眼假说”。它认为，我们在看某些信息时，这是我们的大脑在控制的。

2008年12月1日 · The electromyography (EMG) of the extraocular muscles (EOM) represents a special form of electrophysiological investigation techniques which can be offered only in a few centers with special ophthalmologic and neurophysiologic expertise due to …

2023年7月20日 · Ocular myasthenia gravis is characterized by progressive fatigability of skeletal muscle limited to the orbicularis oculi, levator palpebrae superioris, and the extraocular muscles. 1 Up to half of patients diagnosed with MG present with ocular muscle weakness before showing any other signs of generalized weakness (indicating GMG), while ...

Seronegative ocular myasthenia gravis (OMG) is diagnosed by ocular symptoms with supporting SFEMG, typically of frontalis or extensor digitorum muscles. We aimed to determine the sensitivity and specificity of orbicularis oculi SFEMG to diagnose and exclude myasthenia gravis and predict response to therapy.

2023年8月22日 · The electrodes are sensors capable of reading EMG signals or ocular myoelectric activity during eye movements [1]. For this purpose, two vertical electrodes and two horizontal electrodes were used, with a reference electrode on the forehead (See the figure).

2007年7月1日 · Many diseases mimic the ocular manifestations of ocular and generalized myasthenia gravis. The clinical history and examination provide the most important data for making the diagnosis of myasthenia.

The present article aims at the classification of six types of eye movements from electromyogram (EMG) of extraocular muscles (EOM) signals using the Fourier–Bessel series expansion-based empirical wavelet transform (FBSE-EWT) with time and frequency-domain (TAFD) features.