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Dr. Dianna Leong, Dr. Anh Bui,
and Dr. Thomas Jay Yung

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Staff of Foresight Eyecare

Optometrist Calgary | Foresight Eyecare

Eye Doctor near you in Calgary, AB

For Looks, For Health, For Life

Your Calgary eye doctor knows that getting the right prescription for your eyeglasses or contact lenses is an important part of good eye care.

At Foresight Eyecare, in Calgary, AB, we take it a step further by taking time to focus on complete health with a preventative approach.  Our optometrists, Dr. Dianna Leong, Dr. Anh Bui and Dr. Thomas Jay Yung take the time to educate our patients and their families about their eyes.

Our eye doctor near you, Dr Leong has over 20 years experience as a Calgary Optometrist and is ready to diagnose and treat any obstacle standing between you and your best vision and comfort. She is able to patiently explain to you the results of your eye exam and discuss your best options for treatment. Dr Leong specializes in finding the cause for those who suffer from dry eye syndrome. Your Calgary Optometrist near you, Dr Leong can also help with early diagnosis and and managing, with greater precision, diseases like glaucoma, macular degeneration and cataracts. pediatric eye exams, LASIK surgery co-management, eye emergencies and treating optical issues related to diabetes are also specialties to Dr Leong. She is also knowledgeable in many ways that changes to your our diet and lifestyle affect your eyes with advice to improve your life and vision for the better!

Dr. Leong has a passion for diabetes eye care and education and a special interest in contact lenses and specialty fits.

Dr. Bui has a special interest in vision therapy. Our optician assistants can follow through with careful selection of the right eyewear options for you at a family budget.

Dr. Yung is able to perform exams in Cantonese and his special interest areas include contact lenses, low vision and ocular disease management.

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We Believe

Our goal is to provide comprehensive eye care, not only optical solutions for our patients but to give doctor’s recommendations to ensure future well-being of our patients’ eyes. We strive to reach our patients’ eye care needs and goals in a professional and compassionate manner. We network with other healthcare professionals for the total wellness of our patients. Utilize current eye research and technology to provide our patients with foresight into one’s vision or eye health and provide eye care remedies.

Q&A with Dr’s Leong, Bui, & Yung

Dr. Yung Answers Your Questions About Nearsightedness

What is Myopia? What is the progression? At what age does it begin and when does it stop progressing?

Myopia (or nearsightedness) is when there is a mismatch between the focusing power of the cornea and (the front of the eye) and the length of the eyeball itself. Ideally, the cornea focuses incoming light to a point directly onto the retina (back of the eye) which allows for a clear image to be formed inside the brain. In the case of myopia, the cornea focuses the light somewhere in front of the retina which then causes the image formed to be blurry. This mismatch between the length of the eye and the focusing power of the cornea is usually fixed with glasses that have a minus power. The minus power indicates a lens which counteracts the power of the cornea and moves the focal point of the light back onto the retina. The larger the mismatch, the greater the power of minus lens that needs to be prescribed.

Myopia can have progression rates that vary from person to person. The progression is most often due to the eye growing longer at a faster rate than the cornea can reduce its power. Myopia can begin at any age though it is very rare in infants and more common in school aged children. It can also stop progressing at any age but in general it tends to stop progressing in the late teens to early twenties.

Learn more about Nearsightedness here

At Foresight Eyecare, Drs. Leong, Bui and Yung would be happy to discuss any visual concerns you may have at your next eye exams.

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12 Tips for Optimal Eye Health

Good Eye Care Habits & Hygiene By practicing good eye care habits and hygiene, you can prevent many vision problems...

Eye Doctor’s Guide to Care for Your Contact Lenses

Contact lenses are readily available, so Drs. Leong and Yung want to provide you tips on how to use these...

Wearing Colored Contact Lenses This Halloween? Beware and Take Care!

Countless adults, teens and even children will be wearing colored contact lenses this Halloween, but few are aware of the...

Foresight Eyecare Blog

Contact Us

Foresight Eyecare

40 Country Hills Landing NW, # 226
Calgary, AB T3K 5P4

Locate Us

Our optometry clinic is located on the north side of Calgary with easy access from Deerfoot Trail, Airport Trail and Stoney Trail.   Bus access is convenient access along the main bus routes #301 and #300 (10 minutes directly from the Airport via bus).  We are also within walking distance to the communities of Country Hills, Harvest Hills, and Panorama Hills.

Our mission is to promote the long-term well being of our patients' eyes, providing thorough eye health care and quality optical solutions recommended by the doctor.


  • 10:00 AM - 6:00 PM
  • 10:00 AM - 7:30 PM
  • 10:00 AM - 6:00 PM
  • 10:00 AM - 7:30 PM
  • 10:00 AM - 6:00 PM
  • 10:00 AM - 4:30 PM
  • Closed
Special Office Hours:
  • Closed
  • Closed
  • Closed
  • 10:00 AM - 4:00 PM
  • Closed

Closed on long weekends.

Please contact us with any questions you might have. If this is an eye emergency and it is after hours, please go to the nearest emergency hospital to get immediate assistance.

Languages spoken

English, Cantonese, and Vietnamese

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