Phototherapy, or light therapy, is a treatment that involves
the use of an artificial light source. The therapy is mostly used to treat
seasonal major depressive disorder. This is a sort of depression that happens
during a specific time of year, typically during the winter when there is less
daylight. Other illnesses that can be treated with light include sleep
difficulties and certain types of depression.
How it works
Light treatment compensates for the absence of sunlight
exposure that may lead to seasonal variations in major depressive disorder.You
sit near a light box or lamp that generates bright light during a session. The
box or lamp is designed to seem like natural sunshine, however there may be
differences between devices from different manufacturers.
A light therapy box's normal output is between 2,500 and
10,000 lux. A lux is a unit of measurement for the brightness of
light.Treatments are often started in the fall and last until early spring. The
length of the session is determined by how well you take the treatment and the
light box's strength. Starting with 10,000 lux for 30 minutes every morning is
normally recommended in standard bright light therapy guidelines, however
someone new to the procedure may require shorter initial treatments. The
therapy session may be shorter if the light box is more powerful.
The global
light therapy market is estimated to be valued at US$ 874.0 Mn in 2020
and is expected to exhibit a CAGR of 4.9% over the forecast period (2020-2027).
Side effects
Some people should avoid light therapy, particularly if
they:
have medical disorders that cause light sensitivity in their
eyes
take drugs that make you more sensitive to light, such as
antibiotics or antipsychotics
If you're thinking about trying this therapy, talk to your
doctor if you have any of the following problems:
A history of skin cancer, sensitive skin, and eye issues
Some people may feel euphoria or agitation, which is an
indication that they should cease using the device and consult a doctor.
There are still potential adverse effects for people who can
use light treatment. Typically, issues can be addressed by altering the
session's duration, intensity, or timing.
The following are
possible side effects:
headaches
eyestrain\sagitation\sirritability
sleep disturbances tiredness
eyesight problems
You can talk to your doctor about these side effects, but
you might be able to find relief by making a few simple changes. To avoid
sleeplessness, avoid using the lamp before bedtime, and move the light box
further away from you to avoid eyestrain and headaches.
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