I just finished 12 weeks of vision therapy for convergence insufficiency with Dr. Chad Patterson. I have been diagnosed with vestibular migraines, and was experiencing dizziness and balance issues. My vision therapy assessment discovered the convergence insufficiency, and I feel that this deficiency in my vision was a trigger for some of my migraines. It is now all corrected, and I feel so much better. I highly recommend Dr. Patterson. He is thorough, professional, and was so willing to listen and help in whatever way he could. We are very lucky to have this vision expert in Regina.