Find an Online Tutor Now

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

By:

Bruce F. answered • 07/10/19

Tutor
4.8 (12)

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

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.