I don't know how to do this. You can ask an optician to see whether he or she can do that for you or not. But I think the problem lies in which kind of material the safety glasses are made by. The safety glasses will spider other than break into pieces when they was hit. So they will cause less damage to our eyes. But we know that the glasses made by glass can break into pieces. If you want to coat the glass glasses, they can at most prevent your eyes from harmful UV rays or computer reflections. But they will break into pieces as well when they were hit by foreign objects. So the material plays an important role in this case. If you want to find some glasses that can work like safety glasses, you must ask the optician which material is more durable.