Syntonics with Hans Lessmann OD FCOVD FCSO


We interviewed Hans Lessmann about syntonics, also known as optometric phototherapy, which is a non-invasive form of light therapy.

In conjunction with vision therapy, syntonics can help reverse visual dysfunctions such as:

These symptoms are typically seen in children with neurodevelopmental disorders such as:

Syntonics can also help those with:

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About Hans Lessmann, OD, FCOVD, FCSO 

Dr. Hans F. Lessmann, Executive Director of the Vision Development Institute, is a Board Certified Fellow in both Vision and Light therapy by the College of Optometrists in Vision Development and the College of Syntonic Optometry.

He has won numerous awards, including being named Pennsylvania’s Optometrist of the Year in 2003. He enjoys solving complex vision and developmental problems for all ages from infancy to late adulthood.

Dr. Lessmann is the father of a daughter with Down syndrome and understands the concerns of children with special needs and their parents.


This webinar is not a substitute for medical advice, treatment, diagnosis, or consultation with a medical professional. It is intended for general informational purposes only and should not be relied on to make determinations related to treatment of a medical condition. Epidemic Answers has not verified and does not guaranty the accuracy of the information provided in this webinar.

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Sources & References

Gottleib, Ray and Wallace, Larry. Syntonic Phototherapy. Journal of Behavioral Optometry, Vol. 12, 2001, No. 2, p.31-38.

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