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Abnormal involuntary eye movements
- ... and symptoms may include weak muscle tone (hypotonia), abnormal involuntary eye movements (nystagmus), developmental delays, and, rarely, seizures. Early signs ...
- ... People with Boucher-Neuhäuser syndrome can also have abnormal eye movements, including involuntary side-to-side movements of the eyes (nystagmus). ...
- ... areas of the brain that control eye movement. Abnormal development of these nerve cells likely causes the involuntary side-to-side eye movements that are characteristic of X-linked infantile nystagmus. ...
- ... month of life. The seizures typically involve irregular involuntary muscle contractions (myoclonus), abnormal eye movements, or convulsions. In some cases, the seizures may ...
- ... linked infantile nystagmus is a condition characterized by abnormal eye movements. Nystagmus is a term that refers to involuntary side-to-side, up-and-down, or circular ...
- ... include seizures, intellectual disability, poor muscle tone (hypotonia), involuntary muscle contractions (dystonia), progressive muscle stiffness (spasticity), abnormal eye movements (nystagmus), vision loss caused by degeneration (atrophy) of ...
- ... swallowing (dysphagia), high-arched feet (pes cavus), an abnormal curvature of the spine (scoliosis), and involuntary movements of the eyes (nystagmus). The onset of symptoms varies greatly; however, ...
- ... the arms; speech difficulties (dysarthria); difficulty swallowing (dysphagia); involuntary movements of the eyes (nystagmus); mild hearing loss; abnormal curvature of the spine (scoliosis); high-arched feet ( ...
- ... include involuntary muscle contractions (dystonia) that lead to abnormal repetitive movements in the legs, tremor when holding a position (postural tremor), or involuntary upward-rolling movements of the eyes. Symptoms tend to worsen later in the day ...
- ... seen in some affected individuals include short stature, abnormal head size (either larger or smaller than normal), a small lower jaw (micrognathia), an opening in the roof of the mouth (cleft palate), involuntary eye movements (nystagmus) or eyes that do not look in ...