NeuroVisual Medicine Institute

Differentiate your Private Practice from All Others

A Game Changer For Your Practice

Independent optometry faces challenges like never before: patients can purchase their eyewear on-line; optometric chain stores are seemingly everywhere; and the finances dictate that you must see more patients in less time.

It doesn’t have to be like this.

  • Become a healer, making fundamental changes to your patient’s quality of life
  • Get off the treadmill and spend more time with your patients, seeing only eight patients per day
  • Be treated like a medical subspecialist, integrating into the medical community and getting referrals from across the entire spectrum of physicians (including ophthalmologists)
  • Add a new patient stream and revenue stream to your practice
Vision Specialists Institute Trained NeuroVisual Optometrist
Vision Specialists Institute Trained NeuroVisual Optometrist

A New Optometric Specialty – NeuroVisual Medicine

Vision Specialists Institute Trained NeuroVisual Optometrist
Vision Specialists Institute Trained NeuroVisual Optometrist

NeuroVisual Medicine, developed by Dr. Debby Feinberg, involves the identification and treatment of patients with Binocular Vision Dysfunction (BVD) using fractional units of realigning prism. This financially viable practice model enables the optometrist to identify and successfully treat the 10% of the population who have BVD symptoms that are not usually thought of as being visually mediated:

  • Headache
  • Nausea
  • Light sensitivity
  • Dizziness
  • Neck pain
  • Gait imbalance
  • Anxiety
  • Motion sickness
  • Reading/learning/concentration problems/dyslexia/ADHD/etc…
  • Persistent symptoms associated with TBI/concussion

A General Explanation of Binocular Vision Dysfunction

(as found on the Vision Specialists of Michigan website)

  • People suffering from Binocular Vision Dysfunction have a small amount of eye misalignment (shown by the black arrow) that causes the image (dotted red arrow) to not be on the center of the back of the eye:
    Diagram 1 - BVD - Visual description of Binocular Vision disorder

  • They overuse and strain their eye muscles to correct the misalignment:
    Diagram 2 - BVD - Visual description of Binocular Vision disorder

  • Now the image is on the fovea, but the overused and strained eye muscles cause the many symptoms of Binocular Vision Dysfunction.Diagram 3 - BVD - Visual description of Binocular Vision disorder

  • While the body is doing its best to fix the eye misalignment, this approach causes a lot of problems. There has to be a better way to get the image onto the fovia without straining to reposition the eye. And there is!

  • Since 1995, the doctors at Vision Specialists have performed groundbreaking research into the use of micro-prism lenses (in green). Prism bends beams of light and redirects the image (red dotted arrow) onto the center of the back of the eye (the fovea – big red arrowhead) while the eye is in its original, slightly misaligned position (black arrow). As there is no need to realign the eye, there is no overuse of the eye muscles, which markedly reduces or eliminates the symptoms of Binocular Vision Dysfunction. Diagram 4 - BVD - Visual description of Binocular Vision disorder

Market Conditions


Percentage of Global Population with BVD


Percent of symptom reduction experienced by the average patient with with realigning micro-prism lens technology

Number of Americans with BVD (Millions)

Our Directors

Dr Debbie Feinberg, Vision Specialists Institute

Dr. Debby Feinberg
NeuroVisual Medicine Training Program

Dr. Debby Feinberg, Director of Clinical Care, Vision Specialists of Michigan, has been performing pioneering work with Binocular Vision Dysfunction (BVD) with emphasis on Vertical Heterophoria (VH) and Superior Oblique Palsy (SOP), conditions of eye misalignment that cause headaches, dizziness, imbalance, anxiety, light sensitivity, neck pain and reading difficulties. She has treated more than 8,000 patients with BVD, of which more than 3,000 have been TBI / ABI patients. Her research (which has been presented locally, nationally and internationally) demonstrates that BVD is common in those TBI patients experiencing persistent post-concussive symptoms and treatment with prismatic eyeglass lenses reduces these symptoms by 80%. She authored a book on VH patients and their experiences with VH and with prismatic lens treatment. She is a co-author of a peer reviewed article on TBI and VH.

Dr Mark Rosner, Vision Specialists Institute

Dr. Mark Rosner
NeuroVisual Medicine Training Program

Dr. Mark Rosner is a board certified Emergency Physician practicing more than 30 years. He is the Director of Education and Research at Vision Specialists Institute and has been actively involved in Binocular Vision Dysfunction (BVD) research since 2005. He is co-author of peer reviewed articles on TBI and Vertical Heterophoria (VH) and has presented lectures and posters on this topic locally, nationally and internationally. He helped develop and validate the questionnaire that identifies patients that most likely have BVD (the BVDQ). He co-authored a book on VH patients with Dr Feinberg.


Testimonial Videos

View all of our testimonial videos. Get a feeling of the impact we have had on many peoples lives

What our Graduates are Saying

Dr. Monika Spokas
Clarendon Vision Development Center

What our Colleagues are Saying

Dr. Randall Benson, MD
Director, The Center for Neurological Studies

Power Hour “Podcast” interview by Gary Gerber

Learn how a minute bit of prism can change your patient’s life

Guest: Mark Rosner, MD and Debby Feinberg, OD

Dr. Gary Gerber is optometry’s most in demand practice building consultant.

His own optometry practice was among the top 1% of practices in the world and located in one of the most competitive ophthalmic marketplaces in the United States.

His informative and entertaining presentations have been seen by doctors across the United States, the United Kingdom and Canada and he has consulted for practitioners in Australia, Japan, South Africa, the Caribbean and China.

Learn more about Gary

The First Podcast on February 4, 2015.

Drs. Mark Rosner and Debby Feinberg have done some remarkable work in helping patients with headaches and vertigo who were previously told there was no help for their debilitating problems. They didn’t do it with drugs, surgery, or VT. They did it with prism. Yes – eyeglass lenses with prism. And more often than not, they prescribed very, very small amounts of prism. So small in fact, that most doctors would swear, “There’s no way that minute of a correction could solve that big of a problem.”

The Second Podcast on March 15, 2017

Drs. Mark Rosner and Debby Feinberg are back on the show to discuss some of the latest work they’ve been doing with minute amounts of prism. On the previous show they discussed how they have had literally life changing results for their patients by carefully prescribing minute amounts of prism. Get caught up on some of their latest work and find out about their “NeuroVisual Medicine Training Program” on this episode of the Power Hour.

In the News

Debby Feinberg, OD | Women Who Wow

Debby Feinberg, OD | Women Who Wow

Printed in Vision Monday | "Women Who Wow" | 2016 FOUNDER NeuroVisual Medicine OWNER Vision Specialists Bloomfield Hills, Michigan CHOSEN BECAUSE… “Through her cutting edge research and patient care over the last 20 years, Dr. Debby Feinberg has developed the new...

Women in Optometry, November 2015

Women in Optometry, November 2015

The editorial page of Women in Optometry, November 2015 by Marjolijn Bijlefeld, Director of Custom Publications, Practice Advancement Associates In the past month, here at WO, we’ve had several such boosts. These have been wonderful moments because they have allowed...