Can specific eye exercises improve vision for people with nystagmus? Among medical professionals, the answer is debatable. The American Academy of Ophthalmology reports that eye exercises rarely help control nystagmus. Yet others in the field suggest certain eye exercises may provide some relief from the eye movement disorder. Most agree that doctor-supervised Vision Therapy or a combination of exercises along with Auditory Biofeedback Training reduces symptoms of nystagmus.
Nystagmus is a visual impairment that causes the eyes to make repetitive, uncontrolled movements from side-to-side, up and down, or in circles. Most often, nystagmus is involuntary and reduces or limits vision because rhythmic shaking or jerking of the eyes makes it difficult to focus. Of the more than 45 distinct types of nystagmus, the two most common are congenital (early onset nystagmus) and acquired (developed later in childhood or as an adult). Contact lenses, eyeglasses with prisms, eye muscle surgery, Auditory Biofeedback and Vision Therapy are used in treating nystagmus. Eye exercises listed in the following steps may also reduce symptoms of the disorder.
Any small, hand-held object, such as a pen, can be used to practice focusing. Hold the object at arm's length and focus on a tiny area such as the point of a pen. Gradually, move the pen toward the tip of your nose until it starts to appear as a double image. Draw the pen slightly away from your nose until a single image appears. Focus on the targeted area of the single image for 10 seconds and repeat 10 times, two to four times a day. Continue sessions of the exercise daily until ability to hold focus on the tip of your nose is achieved. Taper off exercises and use as-needed when symptoms recur.
Eye Positioning Exercise
Positioning the eyes to look to one side while maintaining a specific head posture improves control of eye movements and vision. When someone with nystagmus looks in an odd direction, a "null point" is found where symptoms are reduced. Practicing certain head postures and eye directions may improve vision and reduce the intensity of nystagmus symptoms.
Distant objects appear unfocused and unclear to those suffering from nystagmus. They can attain clarity and focus by moving closer to objects. Practice moving closer to objects until you can see them clearly. Note the specific range at which you are best able to see objects and practice moving into that range.
Vision Therapy enhances the brain's ability to control eye movements, focus, tracking, alignment and visual processing. Individualised to meet a patient's needs, the doctor-supervised therapy is a progressive program of eye exercises and procedures. Therapy, administered during office visits over several weeks, may include the use of prisms, lenses, filters, computers and other optical devices. You should practice any techniques learnt in therapy at home. Vision Therapy is costly, however, and your insurance may not cover it. Kenneth Ciuffreda, O.D., Ph. D, SUNY/ State College of Optometry and others report successful multimodal treatment of nystagmus. This information is found in the case study of a teenager denied a driver's license due to visual impairment. Four months of conventional Vision Therapy, prisms, and corrective lenses improved visual acuity and reduced the teen's nystagmus from "large and constant" to "small and intermittent..." The teen's improved vision enabled him to obtain a driver's license, and his nystagmus eventually became undetectable.
The Journal of Behavioral Optometry reports positive results with congenital nystagmus patients following Auditory Biofeedback training. In addition to reducing nystagmus and improving vision, biofeedback training can lead to positive cosmetic and psychological changes in patients. According to The National Center for Biotechnology Information, eye movement Auditory Biofeedback reduced nystagmus in five adult patients within the first hour of training. During the training, patients improved their vision and learnt how to reduce nystagmus upon command with conscious effort.
Nystagmus is caused by abnormal brain functioning in areas that control eye movement. According to the American Academy of Ophthalmology, nystagmus occurs in albinos, severely near or farsighted persons, or those with congenital cataracts, inner ear inflammation, astigmatism or scars in the optic nerve or retina. Other causes of nystagmus include medications, metabolic disorders, central nervous system diseases and alcohol or drug toxicity. Infrequently, the condition results from severe neurologic disorders or brain tumours. It is important for persons with nystagmus to have a thorough eye examination by an ophthalmologist to determine the cause and best course of treatment.