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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

Our Eye Doctors Answer Your Eyecare Questions

Q: Are Online Coloured Contact Lenses Safe for My Eyes?

A: Recently the optometrists at Foresight Eyecare have noticed a surge in inappropriate contact lens fits from online purchases. New contact lens websites that have recently come up present “new” contact lenses seem like new technology. When the doctors assessed these “new” lenses, they are in fact lenses that were popular from 1980’s and 1990’s technology e.g. methafilcon A, polymacon. This contact lens generation has insufficient oxygen permeability for more than 10 hours of wear time, and even lower wear time for higher prescriptions.

The contact lens edge design is also crucial for eye health, as a lens that fits tightly or decentres and makes contact with inappropriate parts of the eye can cause damage to the cornea or other parts of the eye. The lens fit is crucial for clear vision, and to avoid discomfort and micro-abrasions to the eye that can lead to eye infection or inflammation, and in extreme cases, certain infections can lead to ulcers and blindness. In July 2016, the Government of Canada started to regulate decorative contact lenses (also known as cosmetic or coloured contact lenses). They are considered Class 2 medical devices, and in order to sell these contact lenses, distributors need to provide assurance that the contact lens imported into Canada have procedures in place to protect the public should a problem with a medical device be identified.

When you receive a contact lens fitting through an optometrist or licensed contact lens fitter, the contact lens is selected based on measurements of your eyes, and discussing how you would wear the lenses before making recommendations on best lens design, material, and modality for you. Then when you receive your contact lenses, follow-up is done to ensure that they have been properly manufactured and fit properly.

Learn more about Contact Lenses here

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

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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...

Glasses from Foggy to Clear

Approaching Calgary winter, you have probably experienced foggy windshields and foggy glasses!  Foresight Eyecare opticians and optometrists have solution for...

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

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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