Do you agree with this opinion (or maybe it's fact, I dunno) on Blue Wave Light?

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StayinAlive
joined 6 Jan 2008
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Posted by StayinAlive, 15:41 9 January 2008

I e-mailed Apollo Health to ask about how their Blue Wave Light Boxes work, and this is what they sent back. What are your opinions on it? Do you agree or disagree with them?
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Any light can be dangerous, but it really depends on intensity. Follow this logic:

1. All light is dangerous; it just depends on the intensity. White, blue, green or yellow light will cause retinal aptosis or death, depending on the amount of energy. This is why national and international governmental agencies have established threshold limits to light intensity. These thresholds have been developed over decades of time, and from literally thousands of studies and case histories. BLUEWAVE light is approximately 15% of the threshold for 470 nm light.

2. BLUEWAVE light is actually LESS than the amount of 470 nm blue light found in 10,000 lux light.

3. 10,000 lux light produces 3-5 times more blue, including spikes at 405 nm (near U-V) as well as 430 nm.
4. Our BLUEWAVE light is far from the U-V rays and has been through multiple tests on ocular safety.

As with any light therapy, if you have a history of eye problems, you should consult your doctor before using the light unit.


The goLITE uses a newer technology than the 10,000-lux (full-spectrum) light. Ten years ago, a research study was started at Jefferson Medical University to find out what it is in the full spectrum light that helps with mood relief, depression, and getting your sleep cycle back on track. They found that the effective light wave is the blue light wave. For this reason, the goLITE only uses the blue light wave.

Because you are getting the right kind of light you need, you actually use the goLITE for about half the amount of time that you use a 10,000 lux light. The goLITE is also not as bright as a full-spectrum light, creating less strain on your eyes. The goLITE is also more portable than other light therapy units, being 6x6x2 and weighing 8.4 oz.
Joel
Joel
joined 24 Jul 2005
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Posted by Joel, 12:55 10 January 2008

Have they factored in iris constriction to those statements?

Theoretically iris constriction could mean that you actually receive less blue light from brighter sources; hence why non UV filtering sunglasses is a bad idea - under the less bright conditions of sunglasses the iris is less constricted allowing more harmful UV into the eye, than without wearing sunglasses.

But who cares Apollo tells you how it is on their website:

‘BRITEWAVE combines 10,000-lux light with BLUEWAVE and is ideal for those who prefer bright sunlight, but also want the benefits of BLUEWAVE. Both technologies are more effective than conventional full-spectrum light therapy, but because BRITEWAVE products produce larger treatment fields, they may also be considered for children or those with more severe symptoms.’

Doesn’t that imply that BRITEWAVE is more effective than BLUEWAVE? Despite Apollo’s marketing spiel BRITEWAVE is no more than standard fluorescent tube technology – I owned and took apart a BRITEWAVE product. When will patent pending become patent issued for Apollo technology - never, because there is nothing patentable about BLUEWAVE (blue LEDs) or BRITEWAVE (compact fluorescent tubes) existing technology. However, Apollo did get a patent issued for the BLUEWAVE goLITE in July last year, of course not for the technology, but for ‘the ORNAMENTAL DESIGN for a light therapy device, as shown and described.’

Apollo, or whoever owns them now, don’t appear to be planning to conduct a trial to compare bluewave to 10,000 lux in the treatment of SAD. One might assume that is because they know that the outcome will be detrimental to their big marketing money spinner.

Following are abstracts from two goLITE studies for the treatment of SAD that I was sent by Apollo. The latter is the one that I assume Apollo refer to for the effectiveness of the goLITE in treating SAD, but I can see why they don’t even put a copy of either up on their website. It is a shame that I couldn’t post the results graph of study 2, because red light looks quite effective in reducing SIGH-SAD scores.

NB: Remember that depression ratings scales are not linear, and there are multitudes of combinations of different items to achieve the same score; thereby invalidating the current use of statistical analysis using them. Each item could at least be analysed separately, or multivariate analysis could be used on all items for more comparable and valid results.
Joel
Joel
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Posted by Joel, 12:56 10 January 2008

Study 1

REPORT Update: Clinical Trial 2005-06
“Comparing Wavelengths Using LED Light for SAD Treatment”
Janice L. Anderson, Ph.D., Brigham and Women Hospital, Boston MA
Carol Glod, Ph.D. McLean Hospital, Boston MA

Abstract

During the winter of 2005-06, 19 adult outpatients (ages 26-60, 13 female) recruited for an SAD clinical trial entered the study with SIGH-ADS25 total >18. Each gave written informed consent with information that “We will test two different light-emitting diode (LED) arrays with different wavelengths to find out which wavelengths work the best.” The treatments were described as a narrow 468nm vs. a broader 400-700nm, each housed in a portable GoLITE device and neither considered a “placebo.”

Subjects were randomly assigned, given devices and instructions for administering daily treatments at home, 45min q a.m. at a distance of 20” and initial intensity setting of 50%. This yielded for the narrow (blue) source approx. 100 lux overall and for the broader (blue-enriched white) source approx. 711 lux overall .

Each week a rater blind to treatment condition met to assess on SIGH-ADS, HIGH-C, and a list of 16 Physical Complaints which the subject rated none, mild, moderate, or severe. Both treatment groups (blue n = 9, white n = 10) improved significantly within 1 week (see Figure 1) Each week a rater blind to treatment condition met to assess on SIGH-ADS, HIGH-C, and a list of 16 Physical Complaints which the subject rated none, mild, moderate, or severe. Both treatment groups (blue n = 9, white n = 10) improved significantly within 1 week (SAS Proc Mixed MANOVA with LOCF, Time statistic <.001) and the improvement persisted across the additional 2 weeks. Differences between the 2 treatment groups were not statistically significant at baseline (SIGH-ADS25s scores Blue 26.7 +- 4.8 and White 30.2 +-6.1) nor subsequently.

*Using Apollo type jargon: bluewave (goLITE) does not outperform white LEDs in the treatment of SAD*

*Using scientific analysis: the sample size is too small to produce statistically meaningful results*
Joel
Joel
joined 24 Jul 2005
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Posted by Joel, 13:00 10 January 2008

Study 2

Light Therapy for Seasonal Affective Disorder with Blue Narrow-Band Light-Emitting Diodes (LEDs)
Gena Glickman, Brenda Byrne, Carissa Pineda, Walter W. Hauck, and George C. Brainard

Background: While light has proven an effective treatment for Seasonal Affective Disorder (SAD)), an optimal wavelength combination has not been determined. Short wavelength light (blue) has demonstrated potency as a stimulus for acute melatonin suppression and circadian phase shifting.

Methods: This study tested the efficacy of short wavelength light therapy for SAD. Blue light emitting diode (LED) units produced 468 nm light at 607 p w/cm^2 (27 nn half-peak bandwidth); dim red LED units provided 654 nm at 34 pw/cm^2 (21 nm half-peak bandwidth). Patients with major depression with a seasonal pattern, a score of >=20 on the Structured Interview Guide for the Hamilton Depression Rating Scale-SAD version (SIGH-SAD) and normal sleeping patterns (routine bedtime between 10:00 pm and midnight) received 45 minutes of morning light treatment daily for 3 weeks. Twenty-four patients completed treatment following random assignment of condition (blue vs. red light). The SIGH-SAD was administered weekly.

Patients were not excluded from the study if they were taking psychotropic medications as long as dosage had been stable for >=6 weeks and there were no dosage changes for the duration of the study. Four subjects in each group had been taking antidepressants.

Eleven subjects completed light treatment with the blue light condition (9 females, 2 males), and 13 completed the dim red light condition (10 females, 3 males). Of the two patients not completing the study, one did not begin light treatment, reporting schedule conflicts for using the light box in the designated time frame. Another patient withdrew from the study after one week without improvement in symptoms. Both of these patients had been assigned the blue LED light condition.

‘The light units designed and produced for this study each consisted of an LED array of 276 LEDs mounted behind a plastic lens diffuser, housed within 20 by 24 cm panels (Apollo Light Systems, Orem, Utah).’

*That sounds nothing like the goLITE s that I have seen or owned*

Results: Mixed-effects analyses of covariance determined that the short wavelength light treatment decreased SIGH-SAD scores significantly more than the dimmer red light condition (F = 6.45, p = .019 for average over the post-treatment times).

Conclusions: Narrow bandwidth blue light at 607 p w/cm2 outperforms dimmer red light in reversing symptoms of major depression with a seasonal pattern.

*That should be potentially outperforms, but requires a much larger sample size to produce statistical meaningful results for the valid assessment of statistical significance, let alone clinical significance*

*All the hype from Apollo’s goLITE is based around an unscientific trial with only 11 people using a bluewave device much larger than a goLITE, which only compared to red light and not antidepressant drugs, placebo, CBT, 10,000 lux or any other existing treatment for SAD.*
PurpleIvy
PurpleIvy
joined 16 Mar 2005
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Posted by PurpleIvy, 13:30 10 January 2008

I got the golite because I found the lamp I was shown at the same time gave a lot more glare.I really find the blue light easier on my eyes. It can have the intensity reduced as well. I'm happy with it and it works for me. When I was without it for a few weeks, I had to increase my medication. This may bave been coincidence of course, but I don't think so. I know this isn't a scientific trial, just saying it's OK for me.
PurpleIvy
PurpleIvy
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Posted by PurpleIvy, 13:31 10 January 2008

The other advantage of the LEDs is that they won't need replacing at vast expense every year or two!
Piglet
Piglet
joined 12 Oct 2006
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Posted by Piglet, 14:06 10 January 2008

I've said this on the other thread about this (not sure why we've got another thread?!)....I find my light visor (LED) more effective that the lightbox on my desk.

Again nothing scientific and it could be that I am not in the right position for my lightbox whereas the visor is obviously closer to my eyes.
Joel
Joel
joined 24 Jul 2005
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Posted by Joel, 16:20 10 January 2008

My comments are a bit old – some stuff I resurrected from my archives.

I am not actually trying to criticise LED units as such, but I am, as ever, criticising Apollo’s marketing technique and dubious claims – only we have conducted clinical trials to prove the effectiveness of our technology…blah, blah, blah…BS

If you perceive that a treatment helps you, for whatever reason that it actually does; and the benefits outweigh the costs, then who are any of us to criticise it.

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