Isn't the eye an amazing thing? All the things it can do including all the wonderful things we can see. Last night however was very strange. I went to bed and turned off the light. I opened one eye and it was very very dark. For some reason then I shut that eye and moments later opened the other and it was lighter. I thought how strange. Then like a mad man I set about opening and closing my eyes for about five minutes and thought it was amazing (and no I hadn't had a drink or taken drugs and yes I probably do need to get a life).
I found that one eye when looking at the curtains were light and grey in colour and the room had a light glow to it. The other eye showed the room as dark with dark brown curtains. Was this one eye adjusting to "Night Vision" quicker than the other?
Some random pages found that may be interesting and explain the above:
http://health.howstuffworks.com/human-body/systems/eye/eyes-adjust-darkness.htm
https://en.wikipedia.org/wiki/Adaptation_(eye)
http://www.aoa.org/optometrists/tools-and-resources/clinical-care-publications/aviation-vision/the-eye-and-night-vision
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