Asked Questions

For New Patients

How many sets of lenses do people typically go through, and how often do they need to be changed?
Patients may only require one or two lens changes or need as many as seven or eight, depending on symptoms, recovery progress and/or comfort level. Without comprehensive testing, the Mind-Eye Institute team cannot determine a patient’s baseline or know how much retinal stimulation to provide. The goal is to address symptoms and improve comfort without overwhelming a patient’s sensory systems.

During a patient’s first appointment, an optometrist does a comprehensive evaluation that goes well beyond simple eyesight clarity. Afterwards, the patient is provided a plan that maps the recovery process, including an estimate of how many lens changes might be needed. The Institute team will make a more accurate determination of lens changes and calculate rate of change following a second appointment and evaluation of how well a patient has reacted to the first set of therapeutic eyeglasses.

Would I have to wear glasses all the time?

That’s impossible to say without a thorough assessment. You may have to wear them full-time or only during a limited portion of the day. After the first appointment, your optometrist will give you a wear schedule and timeframe.

What kind of insurance do you accept?

Because of the nature of the Mind Eye Institute’s unique tests and cutting-edge procedures, including the patented Z-Bell Test℠, many elements of the examination are not covered by insurance. Oftentimes, CPT codes for Mind-Eye procedures are not included in Medicare. That’s why those advanced procedures may not be reimbursed by health insurance providers.

Following your appointment, you will receive an itemized invoice, which lists optometric procedure, diagnosis and therapeutic codes. You can then use this information to submit to your insurance carrier for full or partial reimbursement depending on your coverage plan. We can assist you through that process.

For a first appointment, we suggest requesting pre-approval from your insurance company to maximize potential coverage. Sometimes, carriers provide forms for both the patient and doctor to complete. We can give you some potential procedure codes in advance so that you can contact your insurance provider and determine whether a portion of your evaluation might be reimbursable.

We also offer financing options through CareCredit

Optical Services

How long does it take to get my glasses?

Mind-Eye Institute eyeglasses – referred to as Brainwear™– are precisely and uniquely crafted to meet the prescription needs of each individual patient. Because the lenses must be made exceedingly exact, the laboratory entrusted with the manufacture of your eyeglasses surpasses national ANSI standards.

About two weeks are required after the order has been placed to create your lenses, cut them to the proper frames, have them pass final inspection by the Mind-Eye team, and then ship them to you. Our optician is always available at the office during regular business hours to answer questions you might have about your order.

Why may I need so many versions of lenses?

Prescribed lenses must meet your changing needs. After your first visit, your Mind-Eye optometrist will indicate how many sessions you might require. After each follow-up appointment, the progress you have made toward achieving your goals is assessed. As a result of the evaluation, your current lenses may be retained, a new wear schedule recommended, or different therapeutic lenses prescribed.

Can I order my lenses elsewhere?

We always give you your prescription, but we highly recommend having the lenses made by the laboratory that we entrust with their manufacture

Studies show that lenses can have either positive or negative impact on brain function. Lenses that fail to meet exacting standards will not likely have optimal effect and may even prove deleterious. Our lenses are made to stimulate very specific cells in each retina and are designed to your unique circumstances. Our Institute team ensures you receive exact lens measurements and filter hues as prescribed. If you have your eyeglasses manufactured elsewhere, we cannot promise perfect quality; even the smallest errors in preparing the lenses can be potentially detrimental.


I think something is wrong with my lenses. What should I do?

If it is a health emergency, go to your local hospital emergency department immediately. Otherwise, please contact to our optical department for assistance.

Understand that the lenses we prescribe are usually atypical of those obtained from a standard optometry practice. That’s because our Mind-Eye team is more concerned about your comfort than the clarity (20/20) of your eyesight. Each patient experiences different feelings and comfort levels throughout the process; our Mind-Eye team is here to help you every step of the way.

'Dr. Zelinsky Is Renowned'

~ Norman Doidge, M.D. & Clark Elliott, Ph.D., Dr. Patrick Quaid and Patricia S. Lemer praise her accomplishments:

"Zelinsky fit Elliott with a series of eyeglasses designed to improve the perceptual damage that made his life so difficult... Getting fitted for Zelinsky's eyeglasses is like no eye appointment you've ever had... Now, Elliott says, he is almost entirely symptom-free, able to problem-solve, multi-task and find his way easily — all abilities he lost in the auto accident in 1999. When he put on his Phase VI glasses he felt something that he hadn't felt for years: "I felt normal."

Review: 'The Ghost in My Brain'
- The Chicago Tribune

"One brilliant Chicago-area optometrist I know, Deborah Zelinsky OD, FNORA, FCOVD, has developed a unique, patented, easy-to-administer evaluation called the Z-Bell Test. This test measures the efficiency of integration between visual processing and listening....A 2014 study at Vanderbilt University found that children with autism do not synchronize their seeing and hearing...I have watched Dr. Zelinsky administer this test to disbelieving colleagues, who were astounded by its accuracy and results...Over the past two decades, the Z-Bell Test has become internationally recognized by the scientific community.”

- Patricia S. Lemer, Licensed Profesional Counselor (LPC)

"I visited Dr. Zelinsky, and she showed me how she can use optical lenses to alter sensory filtering, by directing light to different retinal cells and brain circuits. This can influence activity in the brain and the hypothalamus to better regulate body chemistry, sensory integration, and even some auditory processing. [Dr. Zelinsky] works frequently with patients working with learning and cognitive disorders as well as TBIs."

- Norman Doidge, M.D.

"I was delighted to have Dr. Zelinsky personally contribute to the book. Her wealth of knowledge in the area of visual development and visual processing is widely known, not just through her contribution of eye-care to the author of “The Ghost in My Brain”, but also via her Mind-Eye Institute and the lectures and training their provide. Dr. Zelinsky is not just college and a friend, but also a valued member of the neuro-optometric community and an invaluable bridge to other allied professions treating brain injuries. Her contribution to the book is deeply appreciated."

- Dr. Patrick Quaid, MCOptom, FCOVD, PhD

Clinic Business Hours:

Monday - Saturday

8:00 AM - 6:45 PM


Sunday - Closed

Contact Us:


During Business Hours:




Northbrook Clinic Address

1414 Techny Rd,
Northbrook, IL 60062, USA

St Charles Clinic Address

2435 Dean Suite C
St Charles, IL 60175, USA