Experts told the Daily News that Clinton likely has a Fresnel prism placed on her glasses. The adhesive panel is used to treat double vision. “If she’s wearing a Fresnel prism, then she has ...

They may recommend attaching a press-on prism to one or both of your glasses' lenses to resolve the issue temporarily. If you ...

Unlike traditional cylindrical lenses or diffusers, Powell prisms can provide linear lighting with higher uniformity and stability, so they are widely used in laser processing, machine vision, ...

“Often, we can eliminate the double vision with prism lenses and/or vision therapy. Other times, eye muscle surgery is the best option,” Hopkins said. The patients that Hopkins sees in the double ...