EyeTap devices tap into the mind's eye, e.g. they tap into the rays of light that would otherwise enter the eye, as well as what is seen by the eye.

Also, like a faucet ("tap") they provide lifelong video capture, storage, retrieval, and recall --- Video-on-tap.

Frequent mis-spellings of "EyeTap" include eyetop, eye-tap, itap, etc.

For more on EyeTap, see the website, http://eyetap.org.