My husband has worn thick heavy glasss all of his life until he found Dr. Han. Others had tried to fit him with contacts to get rid of the heavy glasses but were not very successful, had to keep redoing lenses and were never right. Dr. Han was able to do what others could not, fit him with contacts that worked. When it came time for catarac surgery. His vision was corrected and he no longer needs glasses other than to read. We highly recommend Dr. Han.