Hemianopsia (loss of half of the width of your field of vision) is one of the most common side effects of a stroke or traumatic brain injury. It can leave a person disoriented, and struggling just to make it through their day. People can find themselves afraid to go out, concerned about their safety.

If you’re suffering from side vision loss, or care for someone who has side vision loss, please call Dr. Rummel at 732-279-3268 for a free telephone consultation. He can answer your questions and determine if you're a candidate for improved side vision with Side Vision Awareness Glasses.

Side Vision Awareness Glasses

Read what some patients are saying:

“The Side Vision Awareness Glasses bring the objects toward the left into my vision. Most noteworthy has been spotting hanging traffic lights installed on the left hand side of the street, bringing them into full view. Walking in rural or urban areas I am more aware of my surroundings and can better avoid bumping or tripping. On the lighter side when sitting in the passenger seat of the car, I am able to see the speedometer and monitor my husband’s speed.”

“The use of Side Vision Awareness Glasses has been very helpful when shopping, helping me to avoid items left by clerks on the floor. They also help me maneuver through obstacle courses of items such as carts or floor displays. Also while walking in the neighborhood, I can more easily watch for cars before crossing the street.”

For more information, please contact:


Does your lack of side vision leave you missing out?
Afraid of accidents or walking into people?
Concerned about your safety?
There is help...

Side Vision Awareness Glasses™ (SVAG) were developed by Dr. Errol Rummel, an optometric physician, after years of treating people with stroke-related, or brain injury related hemianopsia (side vision loss). Dr. Rummel is a Fellow Emeritus of the Neuro-Optometric Rehabilitation Association, and has had years of experience in private practice and as consultant in neuro-optometric rehabilitation at leading New Jersey rehabilitation hospitals.

Having designed and prescribed hundreds of optical systems to expand side vision, he realized a more effective optical field expansion device was needed, and that a detailed system was necessary for doctors to learn how to accurately examine, prescribe, and instruct a patient in using such a device. He learned what worked and what didn’t work, and designed an advanced optical technology called SVAG (Side Vision Awareness Glasses) and devised a protocol to be used by doctors in order to effectively examine and prescribe the special glasses for those with hemianopsia.

SVAG have important advantages over previous attempts to develop field expansion:

Hemianopsia can leave people disoriented, insecure, and struggling to make it through the day. In addition there are hemianopsia-related safety issues, such as bumping into furniture, walking into people at the mall, falling off a curb, and difficulty performing other activities of daily living. SVAG can give those with hemianopsia more freedom, independence, and safety. Using SVAG may even allow some of those with hemianopsia to return to driving (which may require special on-the-road testing and Motor Vehicle Department approval, depending on state law).

Click here for a list of eye doctors specially trained, skilled, and equipped to treat side vision loss (hemianopsia) related to stroke and/or other neurological/brain diseases.

Click here to watch a person's happy response to seeing better while being examined for Side Vision Awareness Glasses