there are many versions.
1--open eyes, in normal room light. looking actively at the performers, or front of the listening room.
2--open eyes, dim light, eyes somewhat neutrally focused.
3--open eyes, dark room with some tiny gear lights, mind trying to connect dots.
4--open eyes in normal light, but with eyes looking inward not forward (de-emphasizing our vision) accessing ears or a memory, looking up or to the left without focus. this is a typical method of concentrating on imaging with eyes open. to me not really the same as when we have our attention forward. more like eyes closed as far as state of mind. common to switch back and forth in and out of this during sessions.
we get past this part quickly. well....er......maybe not all of us.