I will not
positively insist that we “see” anything when we close our eyes
in a not bright room. If you prefer to say that we have a “visual
sensations” or something of the sort, that is fine with me. There
is at least something going on that permits us to make such
descriptions as “there was a greenish blob that drifted down and left
above a small, yellowish comma shaped patch.” Nowadays these
experiences, or perhaps more accurately the content of these
experiences, are called, by philosophers, “qualia.” Russell, G.E. Moore and others
in the early 20th century would have called them “sense
data.”