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The Accommotrac Vision Trainer

THE ACCOMMOTRAC® VISION TRAINER is a high-technology electronic instrument, used by a doctor to teach the patient -- by sight and sound -- how to voluntarily control the eye's focusing muscle, the ciliary body.

When the patient looks into the instrument, a tone is played that indicates to the patient when the muscle is focusing properly. This is a process of biofeedback.

The Accommotrac® Vision Trainer is a registered trademark of Biofeedtrac Inc. and is patented in the United States, Canada, United Kingdom, and other countries.


NASA on the Accommotrac® Vision Trainer:

The Accommotrac system was invented by Dr. Joseph N. Trachtman, Doctor of Optometry, Ph.D. and Fellow of the American Academy of Optometry. It is based on vision research performed by Ames Research Center and a special optometer developed for the Ames program by Stanford Research Institute.

Dr. Trachtman's Vision Trainer is intended to improve certain vision defects by teaching the patient to control the ciliary body, the focusing muscle of the eye. The key is biofeedback, defined as a technique wherein a patient learns to control a bodily process or function of which he is not normally aware. Blood pressure and heart rate, for example, can be controlled; so can the ciliary body.

It takes a lot of practice and a great deal of motivation to learn to control the focusing muscle of the eye, but many doctors are now using the Accommotrac® Vision Trainer with consistent success. Not all patients can throw away their corrective lenses, says the system's inventor, Dr. Joseph N. Trachtman, but most achieve improvement of some sort, such as halting or reversing their needs for increased lens prescriptions. Trachtman claims a 90 percent success for correcting, improving or stopping focusing problems. The Accommotrac® Vision Trainer has also proved effective in treating eye movement problems, such as nystagmus (eye oscillation), strabismus (cross eyes or wall eyes) and amblyopia (lazy eye).

Excerpt from NASA's Spinoff 1990, Health and Medicine, "Biofeedback for Better Vision".


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