Femtosecond and lens implantation are both modern myopia correction surgeries. The former uses laser to cut the cornea to achieve the effect of correcting refractive error, and the lens implantation uses a customized lens to measure the eye, and implants it into the eye of myopic patients to achieve the effect of correcting vision.
There are two types of femtosecond laser myopia correction: full femtosecond laser myopia correction and half femtosecond laser myopia correction. Both require the cornea to be cut to complete myopia correction surgery, the difference is that when the cornea is cut, Quanfei needs to perform two laser scans of different depths in the corneal stromal layer, and Banfei needs to make a corneal flap first.
ReLEx laser myopia is more suitable for patients with low degrees of myopia, and it is not recommended to exceed 800-900 degrees, and the corrected visual acuity of semi-flight is slightly higher, which can be below 1200 degrees. However, due to the surgical method, the corneal thickness of myopic patients is required. Therefore, even if semi-flying laser correction can help patients with myopia within 1200 degrees, it cannot achieve clearer vision recovery, such as binocular naked eye12, and even both eyes 15。
Lens implantation myopia correction, also known as ICL lens implantation myopia correction, uses a specially customized ICL lens to correct the refractive error of myopia patients. Compared with femtosecond, ICL lens implantation achieves visual acuity correction through the ICL lens itself, so the correction range is wider and the correction effect is better. It is not possible to complete the surgery due to the patient's cornea being too thin, or the prognosis of the surgery is not satisfactory to the patient's expectations.
ICL lens implantation has high preoperative requirements, and every myopia patient needs to do a good job of each preoperative eye examination according to the doctor's requirements, from eye vision to intraocular structure data observation, each of which is related to whether the postoperative effect of ICL lens implantation is qualified, whether the patient is suitable for ICL lens implantation, and how to customize the ICL lens design.
Doing a good job in the preoperative examination of ICL determines what kind of postoperative vision patients can regain after ICL lens implantation.
In addition, the ICL lens itself is designed with UV rays to protect the fundus, especially those with high myopia, from being damaged by ultraviolet radiation.
ICL lens implantation has a myopia correction range of 50-1800 degrees and astigmatism within 600 degrees. The postoperative results vary depending on the age, physical health, and current status of the ocular accommodative function of the myopia patient. Younger patients with myopia can basically get 12. Postoperative vision, superior eye conditions and even binocular 15 of the maybe.
For those who are older, they will also get their own clearer and more comfortable postoperative vision, which can be restored to an average of 10-1.2 or so.
The size and lens data of each ICL crystal need to be customized according to the preoperative examination report made by each myopia patient. For myopia patients with sufficient budget, ICL lens implantation is undoubtedly a more suitable myopia correction method for every myopia patient.
Because ICL lens implantation:
1.Wider range of corrections.
2.At the same time, myopia + astigmatism is corrected.
3.Postoperative vision is more high-definition and stable.
4.The lens comes with UV protection to better protect the patient's fundus.
For myopic patients who are more interested in vision or pay more attention to postoperative vision results, ICL lens implantation can also easily meet the expectations of every myopic patient.
However, with more advantages, the cost of surgery will be slightly more expensive. Therefore, when myopia patients choose myopia correction methods, they can first undergo preoperative examination of myopia correction surgery, and a professional ophthalmologist will evaluate the patient's eyes and choose a more appropriate myopia correction method.
In the case that both types of myopia correction methods are allowed, patients can choose the myopia correction surgery that is more suitable for them according to their own eye needs, postoperative expectations, and even surgical budget.