Symtoms tend to start from around September each year
lasting until April,
but are at their worst in the darkest months.
As the cause is lack of bright light, the treatment is to be in bright light
every day by using a lightbox or a similar bright light therapy device
for between 15 and 45 minutes.
Most people find that light therapy in the morning works best so,
if you are just starting out, try this first.
After a week or so, if you're not feeling much better, try introducing
another session in the afternoon.
If you don't have time in the morning, then using a light in the afternoon
will still be better than not using one at all.
Lightboxes are an extremely safe treatment and the few side effects are very mild.
They produce only a tiny amount of UV light - much less than normal daylight -
so if you are worried about your skin or have been told to avoid UV,
therapy won't be a problem.
A few people experience eye strain but this can usually be solved by gradually
building up the time you spend in front of the lightbox
to find a treatment time to suit you.
There are no indications that lightboxes cause any damage to the eyes,
but it is advisable for anyone with major eye problems to consult their specialist
before starting any form of light therapy.
Although it's not that common, some children get SAD and it is perfectly
safe for them to use a lightbox.
All the evidence suggests that light therapy is safe for
pregnant women and nursing mothers.
You can wear contact lenses or glasses and still use a lightbox.
However, photo-sensitive or tinted lenses will reduce the
effectiveness of the therapy.
PLEASE CONSULT YOUR DOCTOR BEFORE STARTING
ANY LIGHTBOX THERAPY TREATMENT