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Frequently Asked Questions

Why does looking at a bright light induce sneezing?

Self Service Science - Frequently Asked Science Questions
This one has been beaten around a little. Some people claim looking at the Sun induces sneezing, others say it impedes a sneeze: Sneezing, Sun Sneezes, sneezing, and Sneezing and bright light
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What are the side effects of bright light administration?

Re-Time® Jetlag Glasses™: Frequently Asked Questio...
Very few people report side effects from receiving bright light administration. Some people may initially experience slight eye stress or a headache, which tends to dissipate the longer the exposure to the light. Re-Time® Jetlag Glasses™ emit light of about 1200 lux intensity into the eyes of the wearer. As a comparison, on a bright sunny day the brightness looking toward the horizon is about 100,000 lux.
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How does bright Light Therapy work?

Support Questions & Answers | The Litebook Company
Experiments indicate that individuals who suffer from Seasonal Affective Disorder (S.A.D.) are affected by light, which plays a major role in the secretion of melatonin. Melatonin is a natural hormone made by your body's pineal gland. This is a pea-sized gland located just above the middle of the brain. During the day, melatonin levels are barely detectable in individuals who don't suffer from S.A.D.
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What is bright Light Therapy?

Support Questions & Answers | The Litebook Company
Bright light therapy involves the regular (usually daily) exposure to a bright light source. Treatments typically involve an artificial light source of accepted therapeutic intensity and having peaks in specific wavelengths, with exposure duration of a set period and distance from the light source.
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How much sneezing is too much?

Frequently Asked Questions
Respiratory illnesses are the most common causes of illness and death in our pet rats. Since all rats are exposed to certain bacteria that can cause infection, symptoms of respiratory illness should be checked out by a vet promptly. Infections may not always show symptoms right away and often start with sneezing. Respiratory infections can progress from sniffles to bronchial pneumonia quickly and can cause permanent damage to lung tissue and even be fatal.
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Is bright Light Therapy safe?

Support Questions & Answers | The Litebook Company
Bright light therapy has been extensively researched at leading institutions worldwide for over 25 years. Most people experience no side effects; however, some individuals may experience minor side effects (headaches, eye strain, and occasional nausea) that tend to disappear after the first few days of exposure. Bright light therapy has proven safe and highly effective when used under the supervision of a trained clinician or physician.
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Should I use the Bright Light Visor?

New Page 1
Most people with Winter Blues are likely to respond well to bright light. If your symptoms are severe, you may suffer from SAD. Light therapy may work well for you, but you should consult your clinician before choosing any therapy. The Visor can be used along with other treatments - for example, with antidepressants for SAD. Likewise, most people will respond to bright light for circadian rhythm adjustment - i.e., jet lag, shift change work and some insomnias.
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Will the bright light hurt my eyes?

New Page 1
Bright light at 10,000 lux is within the range of light we experience almost every day - from a dimly lit room of 100 lux to a sunny day outside of 40,000 lux. Eye exams of subjects receiving up to 20,000 lux have revealed no risks. Bright lights may cause some people to "see spots" for a short period after use. These "spots" normally disappear within a few minutes. Elderly people may take longer - up to 10 minutes - to return to normal.
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My dog is sneezing, does it have allergies?

faq
It is a common misconception that dogs (and cats) get upper respiratory infections from allergies just like we do. Actually your pet exhibits allergies by getting red, irritated, itchy skin. They can be allergic to inhalant allergens (pollens), fleas, and/or food. Fifty percent of dogs exhibit allergies by getting red, hot ears. If your pet is sneezing a nasal discharge, please give us a call, because it may need to be put on antibiotics for an infection.
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Is the bright light a standard feature on all VIDIVIEWER models?

DDPI Home Page
Yes. There is no extra charge for this. The foot switches, as well, the film file slots on the console are standard features on every model.
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I saw a bright light in the sky last night. Do you know what it was?

Astronomy: Frequently Asked Questions
NOAO does not keep track of unexplained phenomena in the sky, so I cannot tell you for certain what it is that you saw. However, there are several possibilities: First of all, it could not be a supernova because they become very bright for weeks to months, not just for a few seconds. Supernovae that are bright enough for the naked eye to see are also very rare. If the object was moving, there are a few possibilities.
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The light is getting too bright for your eyes?

Modern Institute of Reflexology
Camera man has testimony of a Trucker on his video who got immediate help with his Muscular Dystrophy: "Any doctor that says Reflexology doesn't work is full of Bullshit and needs to go back to medical school and learn something." SHOWTIME Camera Crew pauses after shoot to reflect on Trucker response with M.I.R. VP Rachel Brinkerhoff. Quack Buster took on a hot challenge when he belittled stress as indefinable.
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How bright is the night light?

PowerSURE Residential Power Failure Safety Lighting Frequent...
Night light power is reduced to a level that makes it easy to see where you're going at night. A light bulb for a standard night light will provide about 20 lumens of light in a 360° sphere. Since PowerSURE safety lights are a point source directing a beam of light from a wall in a much narrower field, we've found that approximately 1 lumen is plenty of light for night lighting purposes.
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How bright is the power failure light?

PowerSURE Residential Power Failure Safety Lighting Frequent...
in the description for night lights, we've set the power of the LED for power failure light to approximately 4 lumens. This is very bright for the human eye and we do not recommend looking directly at the light when it is on during a power failure.
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Will I get a tan from a bright light?

Brighterday.ie - beat the winter blues with lightboxes and d...
In order to protect your eyes, the light is diffused through a UV filter to take out the light that causes you to tan. However some UV rays do get through though not enough to give you a tan. To put things in perspective, you will be exposed to far less UV light from a light box than you would be from going outdoors, even on an overcast day.
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Why does daylight or bright light cause my eyelids to "shut down"?

Arizona Chapter Myasthenia Gravis Foundation - FAQs
There should not be any change in symptoms with daylight, although some people notice a change with temperature. There is another disease cause blepharospasm which causes involunary forced eye closure and this is triggered by sunlight. If the eyelids seem to be forced down as opposed to being weak, then you should consider the possibility of blepharospasm. Why does excess Mestinon exacerbate my symptoms and make my muscles weaker than they had been without it.
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How long does it take to experience the benefits of using bright light therapy?

Response to light therapy is usually very quick, and most people will notice a marked improvement within one week. Most people similarly experience a rapid recurrence of symptoms if they stop using their bright light system. Longer trials have also shown increasing response to light therapy after two weeks, with still more incremental improvements after three or four weeks.
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My rat is sneezing, what should I do?

WF FAQ
All pet rats carry mycoplasma. This is the bane of all rat fanciers. Hopefully, your rat's immune system will be strong enough to fight it. However, certain factors in your rats life can significantly lower the immune system and allow the myco to take hold. When this happens you'll notice sneezing, perhaps some red discharge around the nose. This is poryphin, not blood. It's the normal color of rat tears and nasal discharge. If the sneezing is light and dry: (occasional sneezes are normal..
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What are those bright vertical lines on my LCD in very bright light?

Konica Minolta FAx (Forum & Ax FAQ)
Those lines can appear on the Ax LCD monitor when the light is very bright. They are nothing to worry about and will not appear in the picture.
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Is SoLux better than a bright fluorescent "daylight" light in treating SAD?

TLI: SoLux News Page
We maintain a light source that replicates Daylight more accurately is more effective in treating SAD. Independent Studies have confirmed higher scores that equate to a full grade point increase, yes, you read that right, one full grade point in math and reading for students who are exposed to a naturally lit environment. Learn more.
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Should I use bright light?

Physician Engineered Products: FAQ
Most people with Winter Blues are likely to respond well to bright light. If your symptoms are severe, you may suffer from SAD. Light therapy may work well for you, but you should consult your clinician before choosing any therapy. Bright light can be used along with other treatments - for example, with antidepressants for SAD. Likewise, most people will respond to bright light for circadian rhythm adjustment - i.e., jet lag, shift change work and some insomnias.
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Why should I use the Feel Bright Light?

Physician Engineered Products: FAQ
The Feel Bright Light is the lightest, brightest, most user-friendly device available. It allows you to move about, doing most of your normal activities, while receiving your bright light session. Since you do not have to sit in one place for 1/2 hour each day, you are much more likely to stay with your bright light program. In addition, the Feel Bright Light provides you more of the effective blue-green light than any other light device - blue, white or full spectrum.
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What's so different about Forever Bright LED light strings that they've earned patents?

LED FAQ's, Inirgee, Imaginary Colours, RichWave, Full Wave, ...
Consider that LED lights as a general rule use about 80% less energy than incandescents. Now consider that Forever Bright(tm) LED light strings use special circuitry that uses approximately 50% less electricity than other LED light sets! By taking advantage of AC electrical oscillations (Hertz), Forever Bright (tm) light strings save energy, and have extended life. The best thing to do is to read the patents themselves. Patent 6,461,019. Patent 6,830,358.
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When is the use of a bright light system not recommended?

There are no absolute contraindications to light therapy. However, if you have any eye problems (e.g., glaucoma, cataracts, retinal detachment, retinopathy) or have predisposing factors for eye complications (e.g., diabetes, lupus), or if you are taking medications that have photosensitizing effects in humans (e.g., lithium, melatonin), you should not use a bright light system without first consulting your physician.
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Why isn’t the light very bright at first?

Growing Closet : FAQ's
It is a HID light (high intensity discharge), which has to warm up the gases inside the bulb. If you ever lose power to the light, even for a second, turn it off (unplug it) for at least 15 minutes, before you try to restart the light.
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Is bright light therapy harmful to eyesight?

Brighterday.ie - beat the winter blues with lightboxes and d...
No. Thousands worldwide avail of light therapy every year without any negative effect. There is no evidence that standard light therapy (properly administered to people with normal visual function) is harmful to the eyes. However if you have a history of visual difficulties apart from wearing glasses (e.g. cataracts, ulcerated cornea etc) then be sure to consult with a doctor before undertaking light therapy.
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What does it mean if my galvactivator is always bright?

If your galvactivator tends to always glow very brightly, it may just mean your skin is very conductive! Try turning the dial all the way until thelight completely goes off, then dial it back on very slowly, just until you can barely see a hint of light.
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