Why does myopic operation have to do preoperative examination?

Abstract: in fact, the complex and fine preoperative examination is to better grasp the visual acuity of myopia patients before operation, and formulate a better and more appropriate operation plan for patients. Therefore, myopia patients do not have to be too nervous. Just relax and cooperate with the doctor for examination. Why does

need preoperative examination? The purpose of preoperative examination of

and

is to confirm whether the operation can be performed, eliminate potential keratoconus and serious dry eyes, And thin cornea (relative myopia degree) and other surgical contraindications; then provide accurate surgical data, such as corneal curvature, degree, astigmatism axis, corneal topographic map or wavefront aberration; in addition, professional preoperative examination can also screen other eye diseases, especially fundus diseases, such as fundus hemorrhage, retinal hole and detachment. In short, perfect and strict preoperative examination is to ensure the safety of operation The premise of full and effect. What preparations should be made for preoperative examination of

and

?

and

in fact, the complex and fine preoperative examination is to better grasp the visual acuity of myopia patients before surgery, and formulate better and more appropriate surgical plans for patients. Therefore, myopia patients do not have to be too nervous. Just relax and cooperate with the doctor for examination.

and

it should be noted that because mydriasis is required on the day of examination, it is best not to drive by yourself, and it is best to be accompanied by relatives and friends.

if you have the habit of wearing contact lenses at ordinary times, you need to stop wearing soft spherical lenses for more than 1 week, soft astigmatism lenses and hard contact lenses for more than 3 weeks, and corneal shaping lenses for more than 3 months.

who is suitable for myopia surgery? The applicable age of

and

laser myopia surgery and intraocular lens implantation is generally 18 ~ 50 years old. In addition, to accept the above two types of surgery, the patient also needs to meet the following conditions:

01. The refractive state has been relatively stable in recent two years. After preoperative examination, all eye conditions meet the operation standards;

02, no special eye diseases, such as cataract, glaucoma, keratitis, acute conjunctivitis, keratoconus, severe dry eye, no diabetes, uncontrolled systemic connective tissue disease and severe autoimmune diseases;

03. Severe amblyopia and incomplete eyelid closure are not suitable for surgery;

04. Pregnant or lactating women are not suitable for surgery for the time being.