The lenses are often colored in a yellow or rose ... For decades, Moran Eye Center has promoted using FL-41 tinted glasses for migraines. Recently, Dr. Bradley Katz of Moran Eye Center, in ...

FL-Pro (below), and FL-Sun (polarized lenses with added FL-41 tint). All FL lenses are also available in multiple “strengths,” so you can fine-tune the tint of your glasses. TheraSpecs also ...