Welcome

Our Organizational Philosophy

GLIA was founded in 2016 by Drs. David Rosenthal and Charles Shidlofsky as an organization to bring providers and professionals together to help facilitate clinical cross-collaboration, and, in turn, increase the rate of positive patient outcomes. Often times, quality patient care is hindered by a disconnect among providers spanning multiples disciplines and, as a consequence, this frequently yields less than ideal clinical outcomes. In GLIA, we wish to foster an educational, networking, and peer-to-peer relationship-building forum which serves to bring providers together as we learn and grow through interdisciplinary collaboration.

What We Offer

Expand Your Network

Lectures and Learning

Lectures and Learning

At our conference, you'll have the opportunity to meet and interact with dozens of prominent members of their respective disciplines, specialties, and industries.

Lectures and Learning

Lectures and Learning

Lectures and Learning

Capitalize on the opportunity to attend lectures and talks by various practitioners and industry professionals as way to enhance and expand your knowledge base.

Business Exposure

Lectures and Learning

Business Exposure

By participating in our conferences through vendor or sponsorships opportunities, your business can benefit from direct interaction with providers and professionals.

Our Founders

David Rosenthal, DC

David Rosenthal, DC

Charles Shidlofsky, OD, FCOVD

Charles Shidlofsky, OD, FCOVD

Dr. David Rosenthal is a Doctor of Chiropractic and board certified in functional neurology. Dr. Rosenthal has been in practice since 1998 with an office in North Dallas. He is fellowship trained in functional neurology, childhood developmental disorders, pediatrics, and vestibular rehabilitation. He provides full service chiropractic care, nutritional consulting and rehabilitation for children, women and men.


He is the president of GLIA, LLC; a company that he started with a therapeutic optometrist. Together, they generate educational programs and products that address neurological and visual issues.


Dr. Rosenthal privately consults with families and teaches successful parenting strategies. He consults with companies to help improve staff efficiency and product optimization. He is currently collaborating with a company which designs corrective lenses to improve visual disturbances. 


Dr. Rosenthal also develops digital applications used to evaluate visual perceptive space, and VR applications that aid in recovery from strokes.

Charles Shidlofsky, OD, FCOVD

Charles Shidlofsky, OD, FCOVD

Charles Shidlofsky, OD, FCOVD

Charles Shidlofsky, OD, FCOVD

Dr. Shidlofsky was born and raised in Lawrence, NY. His family moved to the Dallas area when he was 16 years old. In 1980, he graduated from J.J. Pearce High School in Richardson, Texas.


Dr. Shidlofsky completed his Pre-Optometry studies at the University of Texas at Austin in 1984. He then attended Southern College of Optometry in Memphis, Tenn. where he received his BS in 1986 and OD in 1988. Upon graduation, he moved back to to the Dallas area to begin his practice.


Dr. S, as he is known around the office, has been very active in Neuro-developmental Optometry for most of his years in practice. He has developed and integrated many unique therapies that have helped thousands of children who have struggled in school due to vision problems often seen in: ADD/ADHD, Autism Spectrum Disorder, Sensory Processing Disorders as well as some of the classic vision problems related to focusing, eye teaming, eye movement skills, visual spatial skills and vision perception issues. He has expanded his work to include those with traumatic and acquired brain injury, stroke and other neurological processing problems. In addition, he works with several professional sports teams in the Dallas area as well as weekend athletes on developing vision skills. Dr. Shidlofsky is a Clinical Director for the Special Olympics Opening Eyes Program.


Dr. Shidlofsky completed his Fellowship for the College of Optometrists in Vision Development in 2011. In addition, he is an Adjunct Professor of Optometry at: Southern College of Optometry, University of Houston College of Optometry, University of Incarnate Word-Rosenberg College of Optometry and Western University College of Optometry. He is also director of a private practice residency program in pediatrics/vision therapy/sports vision and neuro-vision rehabilitation through Southern College of Optometry.


Dr. Shidlofsky lives in Plano with his wife of 30 years, Sherri. Dr. Shidlofsky has three grown children, Alyssa, Kara and Ian who reside throughout the country. He stays active by playing ice hockey, traveling and family activities.