Kaifeng Eye Hospital is really good. A relative of mine had myopia surgery in an eye hospital in 2005, and now his binocular vision is maintained at around 1.2. Several other friends have done it there. Kaifeng Eye Hospital is a public hospital affiliated to the First People's Hospital of Kaifeng City, with high credibility. It is said that a director from Zhang Wanting has been doing this operation for more than ten years, and the technique is good.