Is there absolute contraindication and relative contraindication in myopia surgery

Abstract: Although myopia surgery is a good way to treat myopia once and for all, it is not suitable for everyone, and it also has surgical contraindications. So what are the contraindications of myopia surgery? Is there a distinction between absolute contraindications and relative contraindications?

myopia patients have a common worry, that is, they have to wear glasses to see clearly. Therefore, some patients choose myopia surgery in order to get rid of the trouble of wearing glasses. But myopia surgery is not suitable for everyone, it also has surgical contraindications, so what are the contraindications of myopia surgery? Is there a distinction between absolute contraindications and relative contraindications? Let’s learn about it.

corneal refractive surgery has a certain scope of adaptation. Generally speaking, people aged 18-50 with myopia within 1400 degrees can do it. In the case of hyperopia, the degree should be 100-600 degrees, and astigmatism should be below 600 degrees. In addition, the diopter should be relatively stable for more than two years, and the annual change should preferably be less than 50 degrees.

before surgery, doctors will carefully ask patients what diseases they have had before, and also do detailed ophthalmic examination. This is because people with some eye diseases or systemic diseases cannot do corneal refractive surgery. It is called contraindication in medicine, and clinically it is divided into absolute contraindication and relative contraindication. The relative contraindications of


refer to some diseases that can be operated after treatment. Eye diseases include simple dry eye, chronic blepharitis, conjunctivitis, strabismus, high intraocular pressure, myopia fundus diseases, etc. systemic diseases include drug allergy, high blood pressure and high blood glucose. Patients with mild dry eyes can be treated with artificial tears; Antibiotic eye drops were used for chronic ocular inflammation; Fundus diseases can be treated with fundus laser, and myopia surgery can be performed two weeks later; Patients with high intraocular pressure should eliminate glaucoma first, and myopia surgery can be performed after reducing intraocular pressure; Patients with systemic diseases should be treated and operated after their condition is stable.

absolute contraindications refer to diseases that seriously affect the surgical effect, so myopia surgery must not be performed. There are four main categories:

1, keratoconus, glaucoma, rabbit eye, severe dry eye and eye active inflammation;

2. Correct severe amblyopia with very poor vision;


3, systemic diseases that affect wound healing, such as diabetes, autoimmune diseases, etc.

4. Persons with mental and psychological abnormalities.


finally remind you that preoperative examination is essential and the key to eliminate surgical contraindications, so you should pay attention to it.