It varies from person to person, but you should notice a difference from a few days up to 2 weeks. 

No, there is no need to look directly into the light, but you should have your eyes open so the light can filter into your eyes. 

The Good Lamp have filters that remove harmful ultraviolet (UV) rays, so there's no risk of skin or eye damage. But if you have a pre-existing eye condition or you are developing age-related macular degeneration. In that case, we recommend that you consult with your healthcare provider before using the lamp.

Glasses or contact lenses will be fine if they're clear. On the other hand, sunglasses, photo-sensitive or tinted lenses will reduce the effectiveness of light therapy because less light will reach the all-important receptors at the back of your eyes.

All the evidence suggests that light therapy is safe during pregnancy. In fact, some researchers are now looking at using lights instead of drugs to treat depression in pregnant women and those with perinatal depression.