Why can’t I read with my progressive lenses?

Why can’t I read with my progressive lenses?

People have reported that they feel unstable, can’t read or even can’t see out of them at all. The vast majority of adaptation issues with progressives lenses aren’t from the lenses at all, rather they are caused by the fitting of the lenses to the patient. Feb 13, 2017

See also  What are the disadvantages of pet insurance?