Have gone for years for ortho-k and would recommend.

My husband and I chose to enlist Dr. Zhangs service because the location of his optometry was close to where we lived. We were very disappointed with both his service attitude as well as the quality of his service. Glasses for both of us, made to his prescriptions and through his optometry, cause headache when we wear them. We have been wearing glasses for thirty years. This was the first time we had ever received prescription glasses that did not work.

Been going to him for years. Hes great.

The doctor was unwilling to answer any questions. Despite a request, the doctor wasnt thorough in his investigation. He was in no hurry as no other patient was waiting but tried to rush us. There is no price tag on the frames on display.