Dr. Chang is considered the most impressive ophthalmolgist I've ever met. He is very thoughtful, careful professional surgeon. After I got his glaucoma surgery on my right eye, vision field was improving. Amazing doctor.

Very professional and intelligent. Easy to talk to. Always willing to answer all your questions. Also has a sense of humor. Would highly recommend him as your Glaucoma doctor.

Dr Chang is a great Ophthalmologist! I highly recommend him!!!

Professional and outstanding Doctor! Concerned about your condition and confident with his work!

Dr. Chang and his entire team at the Byer Eye Institute are outstanding. After surgery with him, I have the best vision of my life. His attention to detail and careful listening of my concerns is greatly appreciated. I highly recommend him without reservation!

Dr Chang is great and i hope he stays in practice for a long time

Dr. Chang and his incredible staff are the ultimate in expertise, professionalism, caring, and results. After Dr. Chang's operations on my eyes, I now see better than I have ever in 70 years. Anyone seeking the best in care can do no better than Dr. Chang and Stanford Eye Institute.

Dr Chang is very professional and friendly. Almost 10 years, He treats me with Glaucoma. I trust him. Thank you Dr. Chang!