Myopia surgery takes only tens of seconds, but preoperative examination takes 2 hours. The reason is

Abstract: not everyone can do myopia surgery. If patients with potential keratoconus, severe dry eyes, and corneal thinness (relative myopia) are contraindications, they cannot perform corresponding myopia surgery;

a myopia operation often ends in a few minutes or even tens of seconds. On the contrary, the preoperative examination before myopia surgery takes a long time, and many patients will have doubts. Why does it take 2 hours to do the preoperative examination before myopia surgery? What is the purpose of preoperative examination of


myopia surgery?

1. Judge whether myopia patients are suitable for surgical treatment.

not everyone can do myopia surgery. If patients with surgical contraindications such as potential keratoconus, severe dry eye, and too thin cornea (relative myopia), they cannot perform corresponding myopia surgery; At the same time, professional preoperative examination can also screen other eye diseases for myopia patients, especially fundus diseases, such as fundus hemorrhage, retinal hole and detachment. Strict preoperative examination is the premise to ensure the safety of operation.

2. Doctors can design personalized surgical schemes suitable for myopia patients according to the preoperative examination data of patients.


myopia surgery have developed into various forms today. Myopia laser surgery alone is divided into excimer laser surgery, femtosecond laser surgery, and other surgical methods such as ICL (implantable Collamer lens) can achieve the purpose of correcting myopia. So which method to choose?

this requires professional refractive surgeons to make a comprehensive judgment according to the detailed data of preoperative examination of myopia, whether it can be operated or not, and formulate personalized surgical methods. What do you need to prepare before the preoperative examination of



I. relax and cooperate with the doctor for examination.

2. Patients need mydriasis during the examination, and it is best to be accompanied by relatives and friends. 3. Patients with contact lenses should generally stop wearing soft contact lenses (contact lenses) for 1-2 weeks, hard contact lenses for 2-3 weeks and OK lenses for 3-6 months before the operation.