Medications such as anti-epilepsy drugs. Central nervous system diseases. Symptoms Involuntary eye movement. Movement can be in one eye or both. Objects may appear blurry and shaky. Nighttime vision problems or sensitivity to light. Balance and dizziness. Diagnosis Nystagmus can be diagnosed through a comprehensive eye exam. Testing for nystagmus, with special emphasis on how the eyes move, may include: Patient history to determine any symptoms the patient is experiencing and the presence of any general health problems, medications taken, or environmental factors that may be contributing to the symptoms.
Visual acuity measurements to assess the extent to which vision may be affected. A refraction to determine the appropriate lens power needed to compensate for any refractive error nearsightedness , farsightedness , or astigmatism. Testing how the eyes focus, move and work together. In order to obtain a clear, single image of what is being viewed, the eyes must effectively change focus, move and work in unison.
This testing will look for problems that affect the control of eye movements or make it difficult to use both eyes together. Treatment While eyeglasses and contact lenses do not correct the nystagmus itself, they can sometimes improve vision. Prevention Nystagmus can be hereditary, and a person can be born with it, but it can also be a sign of another medical condition. Find a Doctor of Optometry. If you have any more questions, please read the latest mask guidance , as well as visiting the Spokane Regional Health District website.
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Oscillopsia is the sensation that the surrounding environment is constantly in motion when it is, in fact, stationary. Keep reading to learn more about oscillopsia, including the common causes and symptoms and how to treat it. Oscillopsia usually occurs as a result of conditions that affect eye movement or alter how parts of the eye, inner ear, and brain stabilize images and maintain balance. It often links to types of nystagmus, which is a condition that causes abnormal or involuntary eye movement.
Conditions that affect areas of the brain — especially the cerebellum or parts of the ocular motor system — are another common cause of oscillopsia. The ocular motor system is a series of biological processes that keep images stable when the head or eyes are moving. Ocular motor system damage tends to impair vision and make it seem as though the world is always in motion, particular when a person is changing the position of their head or moving. Some people are born with conditions that cause oscillopsia, but most people develop it later in life.
According to this definition, most people with oscillopsia experience distorted vision — usually the feeling that the world is continuously moving even when it is stationary. This sensation can cause images to:. As most cases of oscillopsia arise at least in part from problems stabilizing images, many people experience it most when they are moving. Symptoms often start during movement and end when movement stops. However, on rare occasions, symptoms can occur while a person is lying or sitting down or standing still.
It may also only manifest itself in certain body positions, depending on the individual. Oscillopsia is often disabling regardless of its frequency or severity because it causes a loss of balance, vision problems, and nausea. People with oscillopsia may be unable to live alone. Furthermore, they might feel frustrated because it is hard to describe the symptoms or explain how significantly it affects their lives.
Oscillopsia typically develops as a symptom of an underlying condition. Currently, there is no specific or approved way to treat oscillopsia as a condition in itself. Droopy eyelids can affect more than your appearance. Over time, they can start to limit your field of vision and impact your ability to see. Keratoconus is a disorder that leads to thinning of your cornea.
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