That's what I meant, you are just describing it differently. The sensory processing faculties of the brain are surely involved in all of this (seeing when sober, OEVs, CEVs, all of it), but I stop calling visuals OEVs when the visuals are no more based on what my eyes perceive. I don't see any distinction between having visuals with eyes closed in a light surrounding or eyes open in pitch black. Okay maybe a slight difference because of what you call 'static' seen through the eyelids.
The overlap between OEVs and CEVs are IMO rather from the fact that in both instances material of the psyche is projected onto what is perceived. This is the continuous factor and this is what would enable a continuous experience from OEV to CEV and back. Why should there be a significant difference between dream-like visuals and patterns, they are all psychedelic projections.
What may be a little different is MMDA / MDA brain movies where regardless of open or closed eyes reality goes into a spin-off tangent where weird shit happens, that goes more in the direction of a delirium or confabulation because false material is presented as reality filling in gaps. I think that is different from a cognitive point of view. With more typical psychedelic CEVs or OEVs I feel involved and immersed like my 'self', mind or being is participating in the experience but I don't mistake it for reality.
I said that I feel like CEVs for me are more meaningful because the patterning, mandala's and the feeling like there is starlight shining from my center are pure and projected in a void instead of onto my surroundings. I called OEVs more chaotic and insane as a gut feeling but I probably did because trying to make sense out of warping surroundings and trying to mix and master psychedelic effects and information from the sensory organs is IMO bound to be more confusing and a source of cognitive dissonance if you think about it. Then again, that chaos can be sport for some people so I'm definitely not judging.