The specifics of Neurolens: As the only prescription lens designed with a special contoured prism to help realign the eyes at various distances, neurolens corrects issues related to pressure on the trigeminal nerve. There is a direct correlation between the trigeminal nerve (the most complex and biggest nerve connected to the brain, which is responsible for neck and head sensations) and the eyes. If your eyes are misaligned, this can put pressure on this nerve and cause headaches, tension, and eye strain. Neurolens uses a specialized measurement diagnostic to detect this possible misalignment and the degree of the problem. The neurolens measurement device can measure where the gap between your eyes should be and where it actually is and help determine how synchronized and aligned your eyes are. This exam takes under three minutes and determines the specifics of your contoured prism prescription. Prisms have been added to prescription lenses for years, but the neurolens technology is the first to use a contoured prism that accounts for misalignment at different distances, both near and far.