Night driving eyewear device with gradiently disposed optical filtering lenses and methods of use thereof

A method of reducing glare caused by headlights at night experienced while a person is driving a vehicle, the method comprising:

• selecting an eyewear device that is configured for use on a roadway system;
• positioning the eyewear device in front of the person's eyes and simultaneously the person driving a vehicle on the roadway system during nighttime hours and the person engaging in a rotation of the head from time to time to improve quality of vision;
• and,
• whereby the engagement of head rotations are performed depending on viewing conditions such that if the person desires to reduce glare experience from headlights then the person rotates their head toward the passenger side of the vehicle, and if the person desires to improve visibility of dark objects in the roadway then the person rotates their head toward the forward direction of the vehicle;
• and
• wherein the eyewear device comprises:
• a first lens;
• a second lens;
• a spectacle frame;
• and,
• wherein the first lens and the second lens each comprise a lens substrate, an optical filtering material, a gradient axis, an optical center, an upper nasal quadrant, a lower nasal quadrant, a lower temporal quadrant, and an upper temporal quadrant;
• and,
• i) the optical filtering materials are gradiently disposed across each lens along a gradient axis such that the maximum change in visible light transmittance along the gradient axis is between 100 to 400 basis points per millimeter;
• ii) the first lens is mounted in the spectacle frame in such a way that the gradient axis is oriented between 10 degrees to 30 degrees away from the vertical axis of the lens;
• and, an average visible light transmittance in the upper temporal quadrant of the first lens is less than or equal to 30 percent;
• and, an average visible light transmittance in the lower nasal quadrant of the first lens is greater than or equal to 70 percent,
• iii) the second lens is mounted in the spectacle frame in such a way that the gradient axis is oriented substantially parallel to the gradient axis of the second lens;
• and, an average visible light transmittance in the upper nasal quadrant of the lens is less than or equal to 30 percent;
• and, an average visible light transmittance in the lower temporal quadrant of the second lens is greater than or equal to 70 percent.