Meet Our Founder Dr. Weidong Yu and Our Co-Founder Kathy

Sightsage was founded by Dr. Weidong Yu, a world-renowned doctor of Chinese medicine for his successful treatment of retinal eye disorders. The company was co-founded by Kathy Zhang, a certified acupuncturist famous for sharing free health tips based on the ancient wisdom of Traditional Chinese Medicine on social media.

Learn more about our founder Dr. Yu and co-founder Kathy and how they started Sightsage, below.

Dr. Yu

Founder and CEO @Sightsage, Dr. Yu is one of Canada’s leading Doctors of Traditional Chinese Medicine (TCM), world-renowned for his successful treatment of retinal eye disorders.
He also co-founded the Wellspring Clinic, where he has improved the vision of over 1,000 patients with Retinitis Pigmentosa, a rare eye disease previously deemed untreatable, and hundreds of patients with other eye disorders such as Macular Degeneration, Myopia, Presbyopia, and Dry Eye Disease.
His 20+ years of research and clinical practice allowed him to discover key factors in both vision health and healing, which he used to treat age-related macular degeneration, glaucoma, diabetic retinopathy, dry eye disease, myopia, astigmatism, amblyopia, and viral optic neuritis.
Dr. Yu has practiced Traditional Chinese Medicine and Western Medicine in Belgium, Canada, US and China and he is a Licensed Acupuncturist in the State of California, US. He’s also the author of 30+ publications in both Chinese and English medical literature.
His purpose: Sight for Humanity.


Kathy Zhang

Co-Founder @Sightsage, Kathy Zhang is a certified acupuncturist famous for sharing free health tips based on the ancient wisdom of Traditional Chinese Medicine (TCM).
Kathy and her husband, Dr. Yu also run the Wellspring Clinic in Vancouver, BC, which specializes in treating Retinitis Pigmentosa (RP) and other eye diseases with acupuncture and herbal medicine.

Since the opening of the clinic, Kathy and Dr. Yu have treated thousands of patients with vision problems, as well as patients with non-vision-related problems such as hearing loss, infertility, insomnia, weight issues, skin problems, joint pain and even cancer.
With more than 30 years of experience in TCM, Kathy spends her free time sharing simple and effective tips and exercises for general health and beauty on her social media accounts.

Her thousands of followers are a testament to the impact that she has had on the lives of many people, with a lot of them reporting that her tips have improved their lives.


It all started in...

Husband and wife, Dr. Yu and Kathy opened the Wellspring Clinic in Vancouver, Canada.

The idea was simple

help people live happier lives and reach their full potential through a healthy lifestyle.


Dr. Yu and Kathy encountered a patient with Retinitis Pigmentosa (RP), a rare eye disease that eventually results in functional blindness.

Because Western medicine deemed this condition untreatable, this patient had given up hope for treatment.

She had initially come into the clinic for weight loss treatment, but Dr. Yu convinced her to let him try to treat her eye condition instead.

To the patient’s surprise, after a few sessions of acupuncture paired with herbal medicine, she started to feel improvements in her visual field and night vision. She could now walk downstairs without holding her husband’s hand and, as her vision improved progressively, she became more and more independent.

What’s more impressive, the cure proved to be lasting.

Dr. Yu went on to develop a treatment protocol for RP rooted in TCM called the “Wellspring Vision Improvement Protocol (WVIP)”, which became a revolutionary step toward the treatment of RP.

  • Word of a cure for RP spread and, one by one, RP patients from all over the world showed up at the Wellspring Clinic.
  • Realizing that people travelled great lenghts to see him for RP and other eye disorders such as Macular Degeneration, Myopia, and Dry Eye, Dr. Yu decided to find a way to make his vision wisdom accessible to everyone, everywhere.
  • Dr. Yu and Kathy founded Sightsage, a company specializing in vision wellness products designed to enhance the healing power of our bodies and bring nourishment to our eyes.
  • Today, a company with customers in more than 10 countries, Sightsage continues to make a positive impact in communities near and far. And we’re just getting started.