Waterdown Optometric's Optometrists

Our Team

Our team of dedicated and experienced optometrists are here to help you achieve the best-quality of care for your vision. With years of experience in optometry, the team of doctors at the Waterdown Optometric Clinic will treat you and your loved ones with care and support. Whether it’s your child’s first eye exam or you require long-term treatment for glaucoma, we are here to help. Learn more about the expertise behind each and every one of our doctors.

Our Doctors

Dr. Marnie Richmond B.Sc.,O.D.

Dr. Marnie Richmond received her Doctorate of Optometry from the University of Waterloo in 1991. Upon graduation, she joined Dr. Thornborrow’s practice. She also holds a Bachelor of Science in Chemistry from the University of Guelph. Dr. Richmond finds working with a variety of people to be a stimulating aspect of her work. She is particularly interested in her young and senior patients. Dr. Richmond has been trained in all aspects of laser co-management and has a growing number of laser patients. Dr. Richmond is a lifelong resident of Flamborough and is active in the community.

Dr. Lyndsey Kay M.Sc.,O.D.

Dr. Kay was born and raised in Kitchener-Waterloo, Ontario. She received her Honors Bachelor of Science at McMaster University in Hamilton and continued her studies at the University of Toronto, where she completed her Master of Science in Laboratory Medicine and Pathobiology, before deciding to pursue a career in optometry. She then received her Doctor of Optometry from the University of Waterloo and throughout her academic studies was recognized on the Dean’s Honours List. Her experience includes a four-month externship at an ophthalmologic center in Birmingham, Alabama, specializing in diseases of the retina, glaucoma, pre- and post-operative cataract, refractive surgery, as well as oculoplastics. In addition, she completed clinical rotations in pediatrics, contact lens and binocular vision. She is a member of the Canadian Association of Optometrists (CAO), Ontario Association of Optometrists (OAO), and has traveled to Guyana to provide eye care to under-privileged children. In her spare time, Dr. Kay enjoys traveling and spending time with friends and family.

Dr. Juliusz Gorecki, B.Sc., O.D.

Dr Gorecki has been at Waterdown Optometric since 2014. He was born in Poland but grew up in Waterloo, Ontario. He graduated from the University of Waterloo in 2009 with both his Bachelor of Honours Science degree and Doctorate of Optometry. Following graduation, Dr. Gorecki lived and worked in Toronto in both private practice and at the TLC Toronto Laser Eye Centre. After leaving the GTA he and his wife set down roots in Dundas. Dr. Gorecki enjoys working with patients of all ages and has a particular interest in contact lenses and laser vision correction, which he underwent himself. He is also fluent in Polish. In his spare time, Dr. Gorecki prioritizes spending time with his wife and daughter. He also enjoys travelling and spending time outdoors on foot or on his mountain bike.

Dr. Gabrielle Gilbert, B.Sc., O.D.

Dr. Gilbert was born and raised in Mississauga, Ontario. She graduated with a Bachelor of Science degree from the University of South Carolina, where she also competed on the soccer team. She went on to receive her Doctor of Optometry from the University of Waterloo and was named to the Dean’s Honours List all four years of her studies there. Dr. Gilbert is passionate about humanitarian efforts. She has travelled to rural Mexico on an optometric mission trip, served as a head coach for special needs group fitness classes, and volunteered with the Special Olympics’ Opening Eyes initiative. For her involvement in the community and academic excellence, she was awarded the Roland des Groseilliers and Margaret Hansen-des Groseilliers Humanitarian Award. Dr. Gilbert loves working with patients of all ages. She has extensive clinical experience in ocular disease, binocular vision, laser eye surgery, myopia control, contact lenses, geriatrics and pediatrics. In her spare time, Dr. Gilbert enjoys hiking, working out, travelling and spending time with her family and friends.

Dr. Derrick Thornborrow O.D.

Dr. Thornborrow is officially retired as of July 2020. Here is a farewell message from the founder of our clinic:
“After more than 40 years of practice I have decided to retire. It is with mixed emotions that I made this decision. Although I look forward to spending more time with family and friends, I will dearly miss all the patients that I had the opportunity to know and care for over the last four decades. I have no doubt that I am leaving your care in the best of hands. Dr Derrick Thornborrow”

Our Staff

Cindy Waterdown Optometric Clinic


Office Manager

Brittany Waterdown Optometric Clinic



Suzanne Waterdown Optometric Clinic


Optometric Assistant

Carolyn Waterdown Optometric Clinic


Optometric Assistant

Janet Waterdown Optometric Clinic


Optometric Assistant

Christine Waterdown Optometric Clinic


Optometric Assistant

Laura Waterdown Optometric Clinic


Optometric Assistant


Optometric Assistant


Optometric Assistant

Gabriella Waterdown Optometric Clinic


Optometric Assistant

Becky Waterdown Optometric Clinic


Optometric Assistant



Optometric Assistant


Optometric Assistant