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Asked • 07/09/19

How long do your eyes need to adapt to darkness and reach full contrast?

I heard you should wait some time until your eyes adapt to darkness and are able to see smallest luminosity differences, otherwise you might overlook faint objects in the ocular. Are there any rules of thumb here?What about looking for 5 minutes on your bright laptop, do you have to wait again the same time or wear some sunglasses? ;)

1 Expert Answer


Bruce F. answered • 07/10/19

4.8 (12)

Effective, gentle, fun. One of my students won award for most-improved

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