Multifocal lens replacement surgery is to remove the natural lens through a small incision and implant the multifocal intraocular lens. Because it has multiple foci, it also solves the problems of myopia, astigmatism, presbyopia and possible cataract in the future. It is suitable for people with high myopia, older age, and already showing presbyopia or cloudy crystals.

1、 Principle of multifocal lens replacement surgery

The core logic of multifocal lens replacement surgery to solve the problem of senile flower is to remove the lens that has lost its elasticity and has undergone accommodation degradation by surgery and replace it with pre implanted artificial multifocal lens.

The special feature of this kind of intraocular lens is that it has multiple focal points of different degrees, which can simultaneously meet the visual requirements of different scenes at long distance, medium distance and short distance, simulate the natural adjustment ability of human eyes when they are young, and solve the problem of aging caused by insufficient lens adjustment ability from the root. If the patient is complicated with cataract at the same time, the operation can also solve the cataract problem at the same time, and realize a single operation to solve a variety of eye problems.

2、 Advantages of multifocal lens replacement surgery

1. clear vision throughout the whole process, suitable for the needs of the whole scene

Different from the traditional single focus intraocular lens, which can only meet the clear vision of a single distance, the postoperative patients can only see far and wear reading glasses to see near, or can only see near and wear myopia glasses to see far; The multifocal crystal can simultaneously cover the full distance vision of far (more than 5 meters, such as sightseeing and blackboard), medium (50cm-3 meters, such as looking at the computer, cooking and dashboard while driving), and near (30-40cm, such as reading, looking at the mobile phone and threading needles). Most patients do not need to wear reading glasses after surgery, which can meet the vast majority of eye use scenes in daily life.

2. solve the problem at the root, and the effect is stable for a long time

This operation replaces the aging natural lens, and the intraocular lens will not age and harden again after operation. The effect of correcting old flowers can be maintained for a long time, and the problem of deepening old flowers will not occur again. If early cataract is complicated before surgery, surgery can also remove cataract in advance to avoid reoperation after cataract development in the future.

3. minimally invasive surgery and rapid postoperative recovery

At present, the femtosecond laser assisted phacoemulsification technology is mostly used in the multifocal crystal replacement surgery. The surgical incision is only 2-3mm without suturing. The operation process only takes 10-15 minutes. Most patients can resume normal eye use 1-2 days after surgery, with small trauma and low incidence of adverse reactions.

4. personalized selection scheme

At present, there are different design types of multifocal crystals, including regional refraction type, diffraction type, continuous focus type, etc. the matching crystals can be selected according to the patients' daily eye habits (such as preferring to watch mobile phones to read, frequently using computers, often driving out, etc.) and eye conditions (corneal curvature, anterior chamber depth, pupil size, etc.), which can better meet the personalized needs of different patients.

3、 Suitable for people

1. older people older than 40

People who meet the diagnosis of presbyopia, have blurred vision, need to wear reading glasses to read and write, have a clear need to remove reading glasses, have different degrees of aging changes in their own lenses, and can accept surgical correction.

2. people with senile flowers and cataract

There are senile flowers and cataract in the middle-aged and elderly people at the same time. With the development of cataract, visual acuity gradually declines. Two problems can be solved at the same time through one operation, which can not only correct senile flowers, get rid of glasses, but also treat cataract and restore clear vision.

3. people with high myopia and presbyopia

People who have high myopia and have presbyopia when they grow older, need to replace myopia and reading glasses at the same time, and it is very inconvenient to take off and wear glasses frequently. Multifocal lens replacement can correct myopia and presbyopia at the same time, and there is no need to wear glasses after surgery.

4. people with high requirements for quality of life

It is necessary to frequently switch between near and far eye use scenes in daily life. For example, the elderly people who often drive and need to see navigation, need to see computers and also need to read and write files, and don't like wearing glasses in daily travel can meet high-quality eye use needs.