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Our Services

Pre-exam questionnaires

Meet our optometrist

Meet our vision therapists

What is Vision Therapy?

Visually related learning difficulties

"Lazy" eyes

Binocular coordination therapy

Sports vision therapy

Success Stories

Vision therapy references

How to refer to Calgary Vision Therapy

Location and hours

Additional information

How visual perceptual skills may affect learning


Visual information processing evaluation


Quality of Life - Lifestyle Checklist (see how you score)

Visually Related Learning Difficulty Evaluations

The Visual Evaluation:
What do I do during the examination?
Determining the clarity of your sight is only one part of the evaluation.  There is more to your vision than the well known 20/20 measure of sight.  20/20 is not everything; in fact, there are some individuals with 20/20 sight that could benefit from wearing appropriately prescribed performance lenses.  There are many additional areas that may be further investigated such as: evaluations of eye movement skills, ability to focus easily from near to far and back again, color vision, visual fields, depth perception, focus endurance for near-centered tasks and coordination of the binocular system.  Although we will perform a basic eye health evaluation, it is highly recommended that you have a thorough dilated eye exam performed prior to your appointment as we are concentrating on the functional and developmental visual skills of the individual.  (For recommendations on optometrists to perform this extended health evaluation, contact our office for a list of optometrists in your area).
The initial visual evaluation is an exciting time for me. It is a real thrill to meet so many different people who have the need for my services. Many have seen others who have told you that your eyesight is 20/20 and your eyesight is fine yet you still have visual problems.  I greatly appreciate all those optometrists and educational professionals who realize that 20/20 does not mean your VISION is efficient.  I appreciate their referrals.  If you were referred to our office from another professional, remember to thank them for allowing us to further their excellent care.
Most of you will see me for a full 60 minutes the first time we are together. Generally that time is broken up in the following way. I will spend about 15 minutes getting to know you and to find out what unmet needs you have that I might be able to help you with. These may vary from not being able to sustain attention on near-centered tasks, to getting headaches when reading or working on computers, to seeing double or seeing the words move on a page of print, to simply wanting to be better at sports or to skipping lines when reading or continuing reversing letters.  A comprehensive visual evaluation should be fun, in spite of being put through many challenges that will help me see how various aspects of your visual process is working.
After the case history we shift to the examination chair. We rapidly will move through a series of tests with lights and a moving steel ball, flippers, lenses, charts, polaroids, color charts and many other things.  It may feel like we move quickly through many of these tests, but each test allows me to probe into the efficiency of a different area of your visual system.   During this part I get a good sense of how you track moving objects and how you move from one place to another while shifting visual attention. I also get a sense of how accurate you are at pointing each of your eyes at precise locations in space. Many people have never learned how to be very accurate with the placement of both eyes at the same time and this can cause all kinds of loss of efficiency as the brain attempts to decide which channel to trust, rather than having the benefit of a well-merged dual view of the world.

I then move in a testing device called a phoropter, which has many different lenses and allows me to analyze the optics of your eyes precisely while also giving me the chance to put your visual process through a series of visually stressful probes to find the range and ease that you can extend the use of your two eyes through.

Visually Information Processing Evaluation
A second appointment is booked to determine how the visual system processes information, how vision integrates with the other sense modalities, and to determine whether vision is supporting or interfering with performance to full potential. Several performance tests are done on desk. It is one thing to look at the optics of the system and to see the ranges through which you can keep both eyes aligned for example, but it is another thing entirely to see how quickly you can call off numbers from a paper or follow intertwined lines in a maze. I may have you read or copy text or write some spelling words, to see how you use your visual system in the real world. There may be some tests to see how well  your visual system integrates with your auditory system.  All of the testing usually can be completed in 60-80 minutes.

Parent Conference -- appointment #3
When the patient is a child, BOTH parents are required to attend this conference. This is an important time that we spend one on one where I explain the results of the previous testing, in terms you can understand, what my understanding is of your/your child’s visual process. We will discuss the various potential etiologies that brought you to this point of your life and then I will give you the three alternatives of vision care and help you understand the potential outcomes of each of these alternatives. Many times problems can be addressed by using lenses alone. If so, this is great as it means we may not need to engage in vision therapy. However, some problems can only be overcome by vision therapy and if you have one of them I'll come right out and let you know that this is your best option.  A written report will be provided at this consultation report.
My goal is to find a path that helps you improve your visual abilities so that you can meet the demands that life throws your way. I look forward to meeting you and those whom you bring with you to the office.