Pendular nystagmus
Pendular Nystagmus
Pendular nystagmus (/pɛndjʊlər nɪˈstæɡməs/) is a type of nystagmus, a condition characterized by involuntary, rhythmic oscillation of the eyes. The term "pendular" refers to the characteristic even, back-and-forth movement of the eyes, which distinguishes it from other forms of nystagmus.
Etymology
The term "pendular" is derived from the Latin pendulum, meaning "hanging", and is used to describe the swinging motion of the eyes in this condition. "Nystagmus" is derived from the Greek nystagmos, which was used to describe the sleepy nodding of a drowsy person's head.
Symptoms and Diagnosis
The primary symptom of pendular nystagmus is the involuntary oscillation of the eyes. This can lead to a variety of visual disturbances, including blurred vision, double vision, and difficulty focusing on stationary objects. Diagnosis typically involves a comprehensive eye examination, which may include tests to assess eye movement, visual acuity, and the structure of the eye.
Causes and Treatment
Pendular nystagmus can be caused by a variety of conditions, including Multiple Sclerosis, Congenital Nystagmus, and Ocular Albinism. Treatment typically involves addressing the underlying cause of the nystagmus. In some cases, corrective lenses or surgery may be used to improve vision.
Related Terms
- Nystagmus
- Jerky Nystagmus
- Congenital Nystagmus
- Acquired Nystagmus
- Multiple Sclerosis
- Ocular Albinism
External links
- Medical encyclopedia article on Pendular nystagmus
- Wikipedia's article - Pendular nystagmus
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