Pretty much.
Give it a bit of gentle encouragement, and it'll usually rise to the occasion.
However, closed eye wanks, are often rather unsatisfying.
( monster munch person, man, woman... camera... TV?, Wed 6 Jul 2005, 11:15, archived)

Like
smoking with your eyes shut?
( Dekazer, Wed 6 Jul 2005, 11:16, archived)