Although the juvenile progressive film can effectively alleviate the growth rate of myopia, it is not suitable for everyone, nor can it absolutely alleviate the degree increase. If used improperly, it will be counterproductive. Generally speaking, if you wear it correctly, it will not exceed 50 degrees a year. However, if the adjustment function of human eyes is added to the lens, people themselves have no adjustment function. Personally, I think the lens of Zeiss is good, and the night of essays is ok. Generally, there are better optical shops, and the lenses are all the same, depending on the discounts of various businesses.