The basic prescription specs are just used for reading, for Lutenol Review people with defective vision or defective accommodation of the lenses. But the bifocal safety glasses are particularly created for the people who would like to have some safety of the eyes along with the reading facility. Such folks are in dire need of greater magnification to make their reading experience comfortable.
Taking into account that prescription specs are pricey, bifocal safety glasses are recommended substitutes, but that holds well only if the person needs modified or adapted lenses to read. The most important fact which needs to be considered is that the plain prescription glasses will not offer any protection, and they can only provide the magnification needed by the individual.