The requirements for myopia surgery are as follows:
1. Exclude eye active diseases: there should be no systemic diseases, such as diabetes and immunosuppression. Surgery is not recommended for these patients.
2, the expectation of surgery is too high. : The operation should be cautious, and the age should not be too young. General requirements 18 years old, stable refractive status in the past two years, that is, the degree change is within 50 degrees every year.
3. There are requirements for the degree: different laser surgeries need different myopia degrees. Lamellar corneal surgery should not exceed 1200 degrees, full femtosecond laser surgery should not exceed 1000 degrees, and superficial surgery should not exceed 800 degrees.
4. There are requirements for corneal thickness: after the cornea is cut off, the thickness of the remaining corneal central stromal layer should be at least 250mm, and it is recommended to be above 280 mm.
5. Pupil diameter: for example, the value in dark light and weak light. If the pupil diameter is too large, it may be postoperative astigmatism, resulting in poor vision at night. Let the patient know in advance and judge whether surgery is needed.
Want to know more about myopia surgery, recommend consulting Shenzhen Huayou Pratt & Whitney Ophthalmology. Huayou Pratt & Whitney Ophthalmology takes "high-quality visual quality diagnosis and treatment" as the core, and carries out all kinds of difficult and high-end ophthalmic surgery, laser myopia correction surgery, high myopia intraocular lens implantation, and students' myopia prevention and treatment. Based on Guangdong-Hong Kong-Macao Greater Bay Area, the layout of "community-street-city" three-level chain operation. As a specialized medical institution of Pratt & Whitney Ophthalmology, Huayou Pratt & Whitney Ophthalmology will adhere to the business philosophy of "* * * Enjoy-Pratt & Whitney-Open-Pratt & Whitney" and bring users high-quality ophthalmic medical resources around the world.