A well-known saying by many people is that cataracts should not be done until they are completely white or mature. This statement did exist before. However, the condition for the existence of this statement was twenty or thirty years ago. At that time, our surgical conditions were not mature enough, and surgical microscopes were not widely used. It is necessary to operate with the naked eye. Under the conditions at that time, if the cataract was not fully mature, the doctor could not see the location and degree of the cataract clearly, so he had to wait until it was mature before performing surgery. Now, with the progress of science and technology and the development of society, we now have a very good and clear surgical microscope and very good surgical equipment. The cataract can be completely solved through a small incision, and there is no need to wait until the cataract is fully mature before surgery.

The timing of cataract surgery mainly depends on the following aspects: first, the requirements or demands for vision are different for everyone; The other is how much his eyesight affects his quality of life and how dangerous it is to his health. To put it simply, for example, if someone is a painter or designer and has high requirements on visual quality, then his cataract can be done earlier. In a situation like this, as long as he personally feels that cataract causes visual interference and feels uncomfortable, even if his vision is 0.8, we will do surgery. For some people who usually use less eyes, work at home or have a small range of activities, and have low vision requirements, they can also wait until the vision decline is more serious, such as below 0.5. But the choice of the best time, from now on, mainly depends on his personal requirements. As far as the condition is concerned, the lighter the cataract itself, the lower the risk of surgery, the higher the safety of surgery and the higher the probability of success. And now we have many kinds of functional crystals, which can not only solve the visual problems, but also significantly improve the visual quality. That is to say, our cataract surgery has developed from simple vision surgery to refractive surgery. We are not only seeing the light again, but also improving our refraction, improving our quality of life and improving our standard of living.