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InSight Optometry & Occupational Therapy is dedicated to ensuring your child's success at school, in sports, and at play.

Dr. Darren Sass, Optometrist

Dr. Darren Sass is InSight’s owner and clinic director. He studied general science at UBC and received his doctorate degree at Southern College of Optometry in Memphis, TN. Throughout his career in optometry he’s had a special interest in children’s eye care, learning-related vision problems, and neuro-developmental optometry.

He is a member of the College of Optometrists in Vision Development (COVD), the Optometric Extension Program Foundation (OEPF), the Neuro-Optometric Rehabilitation Association (NORA), Canadian Association of Optometrists (CAO) and the BC Association of Optometrists (BCAO). He is licensed to practice in BC and Washington State. When not at the clinic he enjoys digging in the backyard.

Dr. Oliver Chong, Optometrist

Dr. Chong comes originally from Montreal and speaks both French and English, as well as a little Jamaican Patois. He studied at the University of Waterloo in Ontario where he obtained Bachelor of General Science (BSc) and Doctor of Optometry (OD) degrees. Prior to graduating he was invited to do a clinical externship in Hong Kong which included rotations in the Hong Kong Polytechnic Optometry Section, the Hong Kong Society for the Blind General and Low Vision Clinic, and the Prince of Wales Hospital Eye Department.

With two decades of experience in optometry, he is available for comprehensive eye exams, eye health concerns, and emergency eye care.

Mina Lee Thomas , Occupational Therapist

Mina Lee obtained her master’s degree in Occupational Therapy from the University of British Columbia after a bachelor’s degree in Kinesiology at the University of the Fraser Valley. Here at InSight, Mina Lee provides pediatric assessments and occupational therapy for children with delayed fine and gross motor skills, coordination and balance issues, mild sensory deficits, and learning and behaviour challenges. She has a great deal of experience working with children as an optometric vision therapist as well.
She is a member of the Canadian Association of Occupational Therapists (CAOT).

Moira, Office Manager

The friendly smile you see when you arrive belongs to our Office Manager Moira. She oversees our appointment scheduling, reception, pre-testing for examinations, and office administration. She and her husband Tim are the parents of 2 adult children and they volunteer their time with a number of community organizations. In addition to her position at the clinic, Moira teaches ballet from kindergarten to the professional level, drawing on her experience as a professional ballerina in England and Australia. 

Linda, Vision Therapist

Linda enjoys her work as vision therapist, training children and adults to improve vision skills. She draws on her experience in hospital administration, as well as years spent coaching ball and instructing children with developing abilities at a therapeutic horseback riding academy. Away from work, Linda enjoys horseback riding and spending time with her family.


Alicia, Vision Therapist

Alicia brings her interest in child development, special needs and brain injuries to her work as a Vision Therapist. She loves working one on one with people, both young in age and young at heart. Especially significant to her, is helping people make lifelong changes to their vision and quality of life. Outside of work Alicia enjoys spending time with her husband and two young sons, especially during their camping adventures.

Suzette, Optometric Assistant

Our dispensary chief Suzette has worked in the eye care profession for over 15 years. She earned an Optometry and Nursing degree in the Philippines before coming to Canada.  At InSight, she will help you with lens consultation, frame selection and eyewear dispensing. She is in charge of contact lens fitting and evaluation, as well as training in contact lens care. Suzette speaks English, Filipino, and is able to communicate effectively in Chinese Hokkien.  Away from work, she enjoys the beach, watching movies and quality time with her husband and three kids. 

Lisa, Optometric Assistant

With more than 25 years working in a wide range of medical setting, Lisa has been a large asset to our clinic. She is also a former instructor of the Medical Office Assistant Program at UCFV. In 2006 she took some time off to pursue a career in professional landscaping, for which she is still actively involved. Lisa's greatest joys in life are her son and six year old grandson and she believes that all children, like the best gardens, require continuous encouragement and nurturing to flourish and bloom.

Charlette, Optometric Assistant

Charlette is a certified Optometric Assistant with many years of experience working with Dr. Sass and Dr. Chong in Mission. She also has over 12 years experience as a Veterinary Assistant in the Fraser Valley. Charlette's friendly personality creates a welcome experience for our patients. When not busy working, Charlette is active hiking, snowshoeing and camping.


We strive to provide complete care for our patients. Learn more about all the services we provide.
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