Adjustable spectral transmittance eyewear

A vision training system for enhancing athletic visual dexterity, comprising:

• eyewear having a first lens comprising a first plurality of switchable zones and a second lens comprising a second plurality of switchable zones, wherein the first lens and the second lens have electrically variable spectral transmittance to obscure at least a portion of a field of view of a trainee's field of view, wherein variations of the electrically variable spectral transmittance of the first lens and of the second lens are performed in phase;
• and
• a lens control system comprising at least a lens driver, a memory, a zone-switchable optical modulator, and a pattern generator, the lens driver being configured to control a duty cycle and a frequency of the electrically variable spectral transmittance of the first lens and the second lens,
• (1) the duty cycle is adjustable to vary a percentage of a cycle for an obscured state having a first duration or a percentage of the cycle for an un-obscured state having a second duration, and
• (2) the frequency is adjustable to vary a number the cycles in a period of time, such that the frequency is adjustable at 15 Hz and less.

Vision training eyewear for enhancing athletic visual dexterity, comprising:

• a first lens having electrically variable spectral transmittance that attenuates light at a first spectral transmittance state having a first duration, wherein the electrically variable spectral transmittance is controlled by a lens control system comprising at least a lens driver;
• a second lens having electrically variable spectral transmittance that attenuates light at the first spectral transmittance state having the first duration in phase with the first lens, wherein the electrically variable spectral transmittance is controlled by the lens driver;
• a display portion on one of the first lens or the second lens comprising a plurality of display pixels for displaying information concerning current training settings and conditions for the training eyewear, the information being presented in a user's field of view;
• a frame configured to retain the first lens and the second lens;
• and
• the lens control system, wherein the lens driver is configured to receive a frequency and a duty cycle, such that the lens driver controls the first duration of the first lens and the first duration of the second lens based on at least one of the frequency and the duty cycle.