An interesting line of research suggests that we can recall events better when our eyes are closed. For example, here is a study that found the children’s memory for visual material improves when eyes are shut. And here is a recent paper that reports a substantial memory benefit with closed eyes. A popular account of the study can be found here:
“The team found that closing their eyes led participants to answer 23 per cent more of the questions correctly.”
peakmemory 
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