Myopic presbyopia surgery is a corneal laser surgery to help patients correct presbyopia and achieve the purpose of lens removal. The surgery mainly corrects the problems of presbyopia combined with hyperopia, myopia, astigmatism and other problems caused by the decline of accommodation. The correction range is between 500 to 800 degrees of hyperopia and myopia, and the astigmatism is within 400 degrees. Generally speaking, it covers a wide range of people, suitable for people aged 40-60 years old, who are uncomfortable with presbyopia and unwilling to wear glasses.

1、 The technical principle of laser surgery for presbyopia cornea

Megavision presbyopia laser surgery is a pioneer in the field of corneal laser surgery. It uses advanced multifocal cutting technology and double aspheric cutting algorithm in the surgical design, which is similar to a "corneal deformation record".

In the central area, the operation can precisely cut the cornea through carefully set specific parameters, enhance the refractive power and achieve significant optimization of short-range vision; Cutting in the peripheral area and taking into account the far vision, through the ingenious adjustment of the corneal morphology, the patient can also have a clear and stable visual effect when looking far. Through this "cut" and "stay", we can solve the problems of hyperopia, myopia, astigmatism and so on. The correction range is between 500 and 800 degrees of hyperopia, and the astigmatism is within 400 degrees, which can meet the requirements of presbyopia people to see far, medium, and near distance.

2、 The advantages of laser surgery for presbyopia

Compared with the traditional laser correction method of presbyopia, Maxus presbyopia laser surgery has several outstanding advantages:

1. one stop solution to a variety of refractive problems: for patients with presbyopia, myopia, hyperopia, astigmatism at the same time, one operation can correct all problems at the same time, without the need for separate glasses or multiple operations, saving time and cost.

2. minimally invasive and safe: it belongs to the corneal surface or stromal layer surgery, which does not need to remove their own lenses, and retains the integrity of the original structure of the eye. Compared with the crystal replacement surgery for the correction of presbyopia, the surgery risk is lower and the recovery is faster, which is suitable for the early presbyopia population without cataract problems.

3. high degree of personalization: the operation plan can be adjusted according to the patient's eye habits. For patients who are accustomed to looking close with their right hand and often work at their desks, appropriate myopia corneal parameters can be reserved. For patients who often drive and need far vision, the effect of far vision can be optimized to meet different living needs.

4. stable effect:after the completion of corneal morphological remodeling, there is generally no obvious change in the degree. With age, the lens aging may still have mild progression of presbyopia, but most patients can still maintain good naked near vision for more than 10 years after surgery, and there is no need to correct it prematurely.

5. good postoperative experience:most patients can resume normal eye use the next day after surgery, can read mobile phones, newspapers, and drive normally, do not need a long rest, and have little impact on daily life and work.

3、 Advantages of Professor Li Ying's studio

Based on the 1050rs excimer laser platform in Germany, Maxus laser surgery creates multiple "functional areas" on the corneal surface to form a multifocal state through the fine cutting of excimer laser. This kind of multifocal design has very high requirements for the spot diameter of the device and tracking system. Professor Li Ying's studio of mingshiguang ophthalmology is equipped with AMAS 1050rs excimer platform. The laser emission frequency is currently the fastest in the world, up to 1050hz, which can achieve precise cutting.

In addition to the requirements for hardware, the preoperative standard inspection is also the key to achieve good results. Professor Li Ying's team of Ming Optometry Ophthalmology has a senior optometrist team of Xiehe. After long-term running in and cooperation, it can provide patients with accurate preoperative examination and optometry trial evaluation.