A reader asks:
If I get a light box, will I have to take my eyeglasses off? They have filters to make them darker in the sun.
Try an experiment first. Place your eyeglasses right up to a regular fluorescent bulb (obviously, not while wearing them!) If they remain clear, there will be no problem. If they darken, you should substitute non-filtering lenses, if needed, to read while taking light therapy.