The degree of myopia is not the only basis for deciding whether surgery can be performed and the type of surgery, high myopia of 700 degrees can also be operated if the corneal thickness and other conditions are met.
Myopia surgery is currently more popular types of surgery, such as full/half femtosecond, ICL IOL implantation and excimer laser surgery, etc. The conditions of these surgeries require that the myopia after the age of 18 years is stable, i.e., the increase in myopia is not more than 50 diopters per year, and the number of endothelial cells in the cornea, and no corneal conjunctival inflammation and infection, etc. The number of diopters of myopia mainly influences the type of surgery that involves corneal cutting.
For high myopia with myopia of 700 degrees, if the thickness of the corneal stroma is suitable, and the number of corneal endothelial cells and the corneal conjunctival tear ducts are satisfied, then femtosecond surgery and excimer laser surgery can be chosen; if the thickness of the corneal stroma is insufficient but the depth of the anterior chamber is satisfied, then crystal implantation can be chosen as well.
It is recommended that those who are willing to have myopia surgery should go to the ophthalmology department of a professional and experienced hospital to complete the relevant auxiliary examinations, and then judge whether they can have the surgery and the specific surgical methods according to the specific conditions.