I know a few people with strabismus (and in the last 3 or 4 years started to develop mild strabismus myself, due unequal far-sightedness and a strong astigmatism in my left eye, without wearing glasses at all). Even before I was developing strabismus, I occasionally entertained the idea of using a head's up display, or a tablemount contraption to slowly realign the supressed eye over multiple sessions. I am really amazed to hear now that the realigning can happen in a single session and lasts a (longer than I expected) short while until the brain relapses into the Plan B suppression.<p>One of the reasons I did not actually try to build this was that I had a hard time imagining participants would be willing to spend large amounts of time over a long period of time to slowly re-align the lazy eye, especially if it's a boring focusing task etc...<p>I am positively amazed that the re-aligning can happen on such short notice (even if it doesn't last very long) and is relatively robust (I would have guessed blinking the eye after re-alignment would immediately revert to the unaligned state)<p>The relative brightness trick is brilliant!<p>Consider daily life glasses with which to attenuate in a controlled fashion the light for the dominant eye. This could be glasses with a fixed polarizer for the supressed eye, and both a fixed and rotatable polarizer for the dominant eye such that relative intensity can be set in the interval [0,1] this is batteryless but may look less appealing. Alternatively hack one of those LCD shutter glasses, and dim the dominant eye (battery powered circuit).
Then every day or hour first measure the minimum and maximum relative transparency for fusion, and then set the device at say 4/5 the way between this minimum and maximum, until eventually someday approaching 1.<p>With such glasses you wouldn't need a game, and the user can use it in part of her daily life (taking a walk, shopping, ...) if the assymetrically transparent eye-patch glasses still look to disturbing for work or whatever...