Should I use light?
Reasons to consider bright light:
Most people with winter blues are likely to respond well to light. If your symptoms are severe, you may suffer from SAD. Light therapy may work well for you, but you should consult with your clinician before choosing any therapy. Bright light can be used along with other treatments- e.g., antidepressants for SAD. Likewise, most people will respond to light for circadian rhythm adjustment- i.e., jet lag, shift change work, and some insomnias.
Reasons to not use light:
Generally, bright light is very safe. If you:
a) have any eye disorder (e.g., cataracts, glaucoma, retinal disease),
b) have any disease with high risk for eye problems (e.g., diabetes, lupus),
c) have any problem triggered by bright light (e.g., migraine),
d) take photosensitizing medication (e.g., certain psychiatric drugs, melatonin), you should consult your clinician prior to starting bright light sessions.