If the detachment of the lens is caused by scratches or improper use, then the eyeglasses online cheap lens needs to be replaced.
The blurring caused by oil stains or cleaning problems on the lens itself can be cleaned with professional lens wiping paper or neutral detergent or hand sanitizer, or with an ultrasonic cleaning machine. It is best to perform ultrasonic cleaning regularly.
Do not wipe the lens directly with an eyeglass cloth, clothing, or tissue. You can rinse it with a cleaning agent or water, then gently wipe off the water stains with an eyeglass cloth or tissue, or simply blow off the water stains with your mouth. A good film layer will fly away with just one blow of water.
Pay attention to the usage time of the lenses. If the lens peels off by itself, the product usually comes with a warranty and can be replaced, but the premise is that the quality of the lens itself is not due to high temperature or acidic corrosion.
Is it feasible to keep the lens and replace it with a new one when the frame is broken? Generally not feasible! But it's not absolute. Many friends have broken glasses, but the lenses are still good. After all, glasses are so expensive. Is it feasible to go to the best place to buy eyeglasses to change the frame?
The essence of an eyeglass frame is to fix the optical center point of the lens to an object in front of your pupils. After changing the frame, any horizontal or vertical deviation or distortion (with astigmatism) is not good!
If your lenses are new and there is no wear and tear, they must be usable. The best way is to find a matching eyeglass frame and install it.