Patent ID: 7828434

Claim:
Vision training eyewear, comprising: a first lens having electrically variable spectral transmittance that creates an obstruction pattern, wherein the electrically variable spectral transmittance is controlled by a lens driver; a second lens having electrically variable spectral transmittance, wherein the lens drive controls spectral transmittance of the second lens independently of the first lens; a frame configured to retain the first lens and the second lens; the lens driver cycles the variable spectral transmittance of the first lens from a first spectral transmittance for a fixed duration and a second spectral transmittance for an adjustable duration; wherein the first lens is comprised of a first plurality of zones; wherein the first plurality of zones includes a first pattern layer and a second pattern layer, wherein the first and second pattern layers are situated to produce an obscuration pattern based on a superposition of patterns defined in the first and second pattern layers; and wherein the first and second patterns layers are configured to produce a moiré pattern.