Asked Questions

For New Patients

How many sets of lenses do people typically go through, and how often do they need to be changed?

It is possible to have anywhere from 1 or 2 lens changes to 7 or 8 – it solely depends on the patient. Without being aware of someone’s baseline or doing any testing, we cannot determine how much we can push and stimulate them without overwhelming their sensory systems.

During the first appointment, Dr. Zelinsky does more than just look at eyes – she looks at the patient as a whole. Afterwards, she will draw a road map of the recovery process and explain what that might entail along with a rough estimate of lens changes. It will become even clearer after the first follow-up in which we can see how well the patient has reacted to the lens and calculate the rate of change.

Would I have to wear glasses all the time?

You might have to wear them full time, but we can not say for sure without a thorough assessment. After your first appointment, Dr. Zelinsky will give you a wearing schedule, which might include wearing the glasses for certain activities along with a constant time schedule.

What kind of insurance do you accept?

Because of the nature of the unique tests and cutting-edge procedures at the Mind-Eye Institute, such as the patented Z-Bell Test℠, many elements of our Mind-Eye examination are not covered by insurance. Oftentimes, CPT Codes for the Mind-Eye procedures are not listed with Medicare. That’s why those advanced procedures may not be reimbursed by insurance companies.

After your appointment, you will receive an itemized invoice with the standard optometric procedure, diagnosis, and therapeutic codes . You can then use this information to submit for a reimbursement from your insurance carrier on the basis of what the carrier will cover. We are happy to help you through that process.

For a first appointment, we suggest requesting pre- approval from your insurance company to maximize potential coverage. Sometimes, carriers have forms for the patient and doctor to fill out. If you would like to call your carrier, we can provide you with some potential procedure codes to see if a portion of your evaluation can be covered.

We also offer financing options through CareCredit

Optical Services

How long does it take to get my glasses?

Dr. Zelinsky’s glasses are specially crafted to perfection for each unique individual, and therefore can only be made in the most trustworthy lab with the most trustworthy individuals.

It takes about 2 weeks after the order is placed to create the lenses, cut them to the proper frames, pass a final inspection by Dr. Zelinsky and her team, and ship them to you. If you have any questions about your order, our optician is always available at the office during regular business hours to answer them for you.

Why do I need so many versions of lenses throughout Dr. Zelinsky's sessions?

This is part of the Mind-Eye process. After your first visit, Dr. Zelinsky will inform you of how many sessions you will need to reach your goals. After each session, she reviews how you are doing and re-prescribes accordingly.

Can I order my lenses elsewhere?

We always give you your prescription, but we highly recommend having the lenses made by us.

Studies show that lenses will have positive and negative effects on our brain and that every optometrist participates in this process whether they realize it or not. Inexact lenses likely won’t have an optimal effect, and may even have negative effect. Our lenses are made to affect very specific cells in each retina and are designed for your unique circumstances. We take the time to ensure you receive the exact measurements and hues as prescribed by Dr. Zelinsky. If you go elsewhere, we can’t promise perfect quality, and even the smallest mistakes could potentially be detrimental.


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

If it is a health emergency, please go to the ER immediately. Otherwise, you can direct your call to our Optical Department where we will answer all of your questions.

Please understand that the lenses we prescribe are usually atypical from those of a standard optometry office because we are treating you for comfort rather than acuity (20/20 vision). Each patient experiences different feelings throughout the process, and we are here to help you every step of the way.

'Dr. Zelinsky Is Renowned'

~ Norman Doidge, M.D. & Clark Elliott, Ph.D., 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.

Clinic Business Hours:

Monday - Saturday

8:00 AM - 6:45 PM


Sunday - Closed

Contact Us:


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Clinic Address

1414 Techny Rd,
Northbrook, IL 60062, USA