A reader asks:

 Is it OK to wear contact lenses while sitting in front of a light box?


It is OK, as long as the lenses are not colored or tinted (which would reduce the lux level). We advise not using contacts for the first few days of treatment (regular glasses would be fine), since some people initially experience eye irritation, which might be exacerbated with contacts. Either way, if eye irritation proves a problem, using artificial tears just before and after the treatment session sometimes helps.