A member asked:

What to do if i see a bright purple light with eyes closed?

A doctor has provided 1 answer

After-image: It is not uncommon if you have been staring at a computer screen for periods of time to see a purple after-image when you close your eyes. Similarly, if you have been outside and looking in the direction of the sun that you will see an after-image. Almost any light source can generate such an after-image and the after image will be brighter with brighter lights and longer viewing times.

Answered 5/30/2016

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