meet THE EXPERTS
James M Stringham, PhD
CHIEF SCIENTIFIC OFFICER
Dr. Stringham joined the MacuHealth team after a distinguished career in research and academia. He earned his doctorate in experimental psychology and neuroscience from the University of New Hampshire in 2003, and did postdoctoral training at both Harvard Medical School and the Medical College of Georgia. He has since held positions at the University of Georgia, the Air Force Research Laboratory, and most recently the Duke Eye Center. Nearly all of his research has been geared toward understanding visual and cognitive benefits of the macular carotenoids lutein, zeaxanthin, and meso-zeaxanthin.
As the Chief Scientific Officer of MacuHealth, Dr. Stringham will expand the scope of research and application of the macular carotenoids to include investigation of effects that may benefit visual and cognitive performance in athletes, visual and systemic health in those with metabolic disease, and neural health and development in children.
Professor John Nolan
NUTRITION RESEARCH CENTRE IRELAND AT SETU
Professor John Nolan is the Principal Investigator of the Macular Pigment Research Group (MPRG) at the Nutrition Research Centre Ireland. His research group studies the role of eye nutrition for vision and the prevention of blindness. He is currently investigating the link between nutrition and brain health and function.
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He has presented at over 100 international scientific conferences and published over 85 peer-reviewed scientific papers, which have been cited 2956 times with an h-index of 34. He is also the editor of the book Carotenoids and Retinal Disease. Professor Nolan also has editorial roles at the European Journal of Ophthalmology and the Journal of Alzheimer’s Disease and serves as the chairman of the International Brain and Ocular Nutrition Conference, held at Downing College, Cambridge University, UK. He is a Fulbright Scholar and serves as the director of Nutrasight Consultancy Ltd., SightRisk Ltd., and NutrAlgae Ltd.
Jennifer Stewart, OD
NEW CANAAN, CT
Dr. Jennifer Stewart is an optometrist, internationally recognized speaker, writer, consultant, and entrepreneur. She has a passion for helping optometrists and organizations with operations, sales success, practice management and sales team training through her advisory and consulting firm, OD Perspectives. She is an established writer and has been featured in most optometric publications, is an Adjunct Assistant Professor at the New England College of Optometry and a consultant for Coopervision, MacuHealth and Zyloware. She was also awarded the Emerging Leader Award in 2022 from the Optical Women's Association.
With a deep interest in sports vision, Dr. Stewart is the Co-Founder and Chief Vision Officer for Performance 20/20, which provides services for sports and performance vision training. She is a recipient of the Theia Award for Innovation by Women in Optometry and serves on the Executive Board for the International Sports Vision Association. Dr. Stewart is passionate about sports safety, enhancing performance, and helping business owners achieve their goals. An avid Disney fan, she lives her life by the quote “if you can dream it, you can do it.” She is inspired to help others with their dreams.
Tim Earley, OD
MEDINA, OH
Dr. Tim Earley obtained a bachelor’s degree in Visual Science and his Doctorate in Optometry from the Pennsylvania College of Optometry in 1998. He is co-owner of Medina Vision and Laser Centre in Medina, OH. He is also the staff optometrist of the Bright Eyedeas Vision Clinic at the Medina County Career Center. Dr. Earley is a proud member of the American Optometric Association, Ohio Optometric Association, and is a current Candidate for Fellowship with the American Academy of Optometry. In addition to various publications, Dr. Earley is a national speaker and consultant in the area of specialty contact lenses, macular degeneration and practice management.
Ryan Powell, OD
KANSAS CITY, MO
Ryan Powell is an Optometrist practicing in the Kansas City metro region. He is thefounder and principal owner of Insight Eyecare Specialties, dba as Vision SourceEyecare. They are a 12-location practice in Missouri. Dr. Powell was the President ofthe Missouri Optometric Association in 2010 and served on the Southern Collegeof Optometry board of trustees and served as the chairman in 2019–2020. Ryanhas been a speaker for several industry partners. He is a Vision Source Administratorand serves on many charitable organization boards and advisory committees.He and his wife Amy have three kids and enjoy Missouri Tigers sports, Kansas CityChiefs football and time at the lake.
Amanda Legge, OD
WYOMISSING, PA
Dr. Legge has practiced at Wyomissing Optometric Center for 13 years. She practices primary eye care with a special interest in retinal diseases, having earned a certification for advanced retinal studies during her academic and clinical training. Additionally, Dr. Legge is professionally recognized for her expertise in the diagnosis and management of age-related macular degeneration and inherited retina disease. Dr. Legge is an active member of the Lions Club and leads their program on assistive device donations and disbursement to those in need. Sheis also a member of the Berks Vision Resource Center Board of Directors serving as secretary and is a member of their Sight Conservation Committee. She is on the Clinical Advisory Board of an online macular degeneration support group providing her expertise in an evidence-based manner.
