Benefits; Device Pretest - Verilux vt20 Instructions Manual

Verilux Natural Spectrum
by the eye, efficiently cueing the body to improve mood, energy and function while
reducing light sensitivity, eyestrain and fatigue.
Unlike most artificial light, Verilux Natural Spectrum light illuminates in the broader
scotopic range, stimulating more of the eyes' photoreceptors without extreme
brightness and glare. Like daylight, this scotopically enhanced light allows optimum
visual stimulation without oversaturation.
Intense Narrow
Spectrum Light
Lens
*Verilux Natural Spectrum
at 12" to 14" from lamp; 10,000 (photopic measurement) at 6" to 8".
To help determine if you have sensitivity to light treatment, we recommend that you
perform this pretest upon first use of this device:
Step 1 - Start this test with the comfort lens. Turn on the lamp and position it about
18 inches from your face. (Do not look directly into the lamp.)
Step 2 - Operate the lamp for approximately 10 minutes and turn it off. If the light
has caused any discomfort, stop using the lamp and consult a doctor.
If you have no discomfort, you may consider gradually decreasing the
distance from the lamp and increasing the use time, which results in
more lamp intensity and greater effect. You also may change from the
comfort lens to the high-energy lens and repeat the device pretest. For
your initial sessions, you should monitor the degree of any discomfort and
accordingly adjust the time used, lens used and lamp location.
WARNING:
lighting. Discontinue use if you experience any discomfort.
WARNING:
depressants) which may result in discomfort or a level of hyperactivity. Consult
with your health care provider before using this product.
WARNING:
health care provider prior to use.
light is just the right kind of illumination, easily absorbed
®
Intense Artificial
Light Therapy
Irritated
Eyes
Rods
Cones
Rods
Under-stimulated photoreceptors
®
Light: With high-energy lens: 10,000 LUX (scotopic measurement)

Device Pretest

Some people may experience light sensitivity to fluorescent
Certain drugs may induce light sensitivity (e.g., anti-
If you have a pre-existing eye condition, contact your

Benefits

Natural Spectrum
Light Therapy
Balanced Broad
Spectrum Light
Lens
Well-stimulated photoreceptors
6
®
Comfortable
Eyes
Rods
Cones
Rods