1, full femtosecond does not need to make corneal flap first, and the machine directly scans two corneal stroma layers with different depths to form a complete convex lens corneal tissue. Then the doctor used instruments to separate the lens from the corneal stroma, and after taking out the corneal tissue of the lens, the operation was completed. All-femtosecond surgery requires myopia and astigmatism, and not everyone can do it. Compared with semi-femtosecond, full femtosecond needs to cut more corneal tissue with the same degree and different methods, but at present, full femtosecond can not do personalized surgery. Full femtosecond because there is no corneal flap, the incision is only 2 mm, which is safer.
2. Semi-femtosecond is to make a corneal flap with femtosecond laser. Usually, the thickness of the flap is 1 10 micron. Then lift the corneal flap, perform laser cutting, rinse the debris after cutting, reset the corneal flap, and the operation is over.
3.ICL intraocular lens is a kind of soft intraocular lens, which is another innovative scientific and technological achievement in the field of modern ophthalmic refractive correction. It can be placed in a safe area in front of the lens of the human eye, and its thickness is only about 50 microns, which is thinner than the diameter of hair. The postoperative vision is better than the refractive correction technology implemented on the cornea by wearing frame glasses and contact lenses. It can be used to correct a wide range of myopia, hyperopia and astigmatism without removing or destroying corneal tissue and suture after operation. At the same time, predictable refractive correction and excellent visual quality can be achieved. Click to test whether I am suitable for myopia surgery.
Want to know more about myopia surgery, recommend consulting Guangzhou Huaying Ophthalmology. The current situation and talent echelon of Huaying Ophthalmology: There are ophthalmology clinics, wards and optometry departments, with more than 20 beds. Ophthalmology has a professional and technical team with rich experience, exquisite technology, strong professional quality and sound academic echelon. Medical staff 2 1 person. Medical staff have been to tertiary institutions for further study, with rich clinical experience, superb diagnosis and treatment technology and trustworthy professionalism.