These lenses will make your head swim

If you need bifocals but can't bear the idea of wearing lenses with etched in lines , you have another option. Progressive lenses offer varied lens strengths like bifocals, but the wearer. Other than cost $200 or more for the lenses alone , some progressiives have a major drawback, they can be difficult to get used to, causing dizziness, headaches, even teeth grinding as the eyes adjust. When san diego human resources director debi Ives first tried them, she got dizzy, had trouble focusing and lost her balance on the stairs, I couldn't see where my feet were going, she says. Adjusting to progressives can take from a few minutes to two weeks or longer, if yu experience problems, have your glasses cecked to ensure they were ground and fitted properly - a god reason to ask about return and repair policies bèfore you buy, A misplacement of the near zone, for example, can make a big difference. When lves tried progressives again a year later, this time using larger lenses with less variation between zones, she was recoached on pointing with her nose, rather than shifting her eyes to see different objects. I ve had much more success," she says