Laser myopia surgery requires that the patient’s cornea needs to be at least 450 microns thick for safety, otherwise the patient is at a higher risk of complications such as conical cornea after the surgery.
Laser myopia surgery includes femtosecond, semi-femtosecond and excimer lasers, etc., which are used to treat myopia by cutting corneal tissue through laser action. In order to ensure the effectiveness and safety of the treatment, the cornea thickness of the patient should be above 450 micrometers. If the cornea is thin, the patient may have complications such as cone cornea after the operation.
If the thickness of the patient’s cornea is less than 450 microns, after the surgery, because of the thin thickness of the patient’s cornea, with the fluctuation of intraocular pressure or other factors, the patient’s cornea may deform and extrude, and there will be puffing, that is, conical cornea.
Currently, laser myopia surgery technology is relatively mature and safe, but there is still the possibility of surgical risk, it is recommended that patients follow the doctor’s instructions for post-operative care, regular review, and timely consultation when discomfort occurs.