With the arrival of the winter vacation and the Spring Festival holiday, many senior high school students and college students will include "taking off the mirror" in their holiday plans. Lei Ming, Dean of Kunming Runcheng Preh Ophthalmology, reminded that myopia surgery is not available to everyone, nor can it be done at any time.
At present, myopia surgery is mainly divided into two categories: corneal refractive surgery and lens implantation surgery. Corneal refractive surgery mainly includes full femtosecond, half femtosecond, etc., which corrects myopia and astigmatism by changing the thickness and curvature of the cornea. Lens implantation involves making a small incision in the surface of the eye and then placing a custom-made lens inside the eye through a bolus, which can be understood as implanting a special, tiny lens into the eye. ”
There are many contraindications to myopia surgery, and not all myopic people are suitable for myopia surgery. Myopia surgery is only suitable for those who need to remove lenses, who are between 18 and 45 years old, and whose myopia degree has been stable in the past two years, that is, the annual increase is not more than 50 degrees; Corneal refractive surgery can correct myopia from 50 to 1200 degrees, and astigmatism does not exceed 600 degrees; People without severe corneal disease.
Lei Ming reminded that there are 8 categories of people who are not suitable for myopia surgery: people with keratoconus or other corneal ectasia diseases, severe dry eye and active inflammation of the eye; People suffering from glaucoma and cataracts; People with thin corneas; People with severe lesions of ocular appendages such as eyelid defects, eyelid deformities and eyelid insufficiency closure; People with severe corneal disease; People with a history of surgery or trauma in the corneal resection area, severe ocular surface disease and fundus disease; People with systemic diseases that affect wound healing; People with mental and psychological abnormalities.
Different myopia surgeries have their own suitable targets, so it is necessary to choose the appropriate surgical method under the doctor's advice after the examination. Those who are nearsighted within 1000 degrees and astigmatism within 500 degrees, like sports or engaged in confrontational occupations, can give preference to full femtosecond. Through examination, the cornea is slightly thin, scar-free, and the postoperative medication compliance is good, and those who can adhere to regular postoperative follow-up can choose individualized microfemtosecond surgery. Patients with high myopia and ultra-high myopia with relatively thin corneas, as well as patients with moderate and low myopia with ultra-thin corneas, can choose lens implantation surgery through examination.
The safety of myopia surgery is mainly based on the risk control of preoperative examination, and patients need to reserve a certain amount of time to complete the relevant preoperative examination before choosing myopia surgery, and at the same time, they should stop wearing glasses 7 days in advance. During the preparation period for surgery, you should pay more attention to protecting your eyes than usual, not staying up late, looking at electronic screens for a long time, and eating less spicy fried food, so as to avoid dry eyes, fatigue, and damage to the health of the ocular surface. The medication and follow-up after myopia surgery are directly related to the recovery effect of surgery. Postoperative medication must be strictly followed by the doctor's instructions, and the dosage must not be increased or decreased blindly. In addition, if you don't pay attention to scientific eye use after myopia surgery, it is still possible to become myopic again.
Pocket Spring City reporter: Zhou Xiaowen.
Editor-in-charge: Yang Rui.
Editor: Wu Chenping.
Final review: Zhou Jianjun.