Amber Eyeglasses are Helping Thousands of People Sleep Better

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The 10,000th order for products that eliminate the “blue light problem” was filled this week at by Photonic Developments LLC.

One is tempted to say that the 10,000th customer bought our products this week but it would be inaccurate since many of our customers are repeat customers buying additional products. This is part of the reason we are so confident that our products actually work, despite the simplicity of the idea. Few people (at first) can believe that simply wearing glasses for a few hours before bedtime can have such a powerful effect on sleep. It’s not magic, it’s science.

Surprising as it may seem, a major discovery about the functioning of the eye was not discovered until this century. The discovery was that some of the light sensors in the retina have nothing to do with vision. Their function is to control the internal (circadian) clock. The nerve fibers from these sensors, called ganglion cells, don’t go to the visual cortex of the brain but rather go to the suprachiasmatic nucleus (part of the hypothalamus), which controls the pineal gland. The pineal gland produces melatonin, the sleep hormone. These special sensors are different from the rods and cones that produce vision. They respond most strongly to blue light. Exposing the eyes to the blue rays in ordinary white artificial light in the evening prevents the pineal gland from producing melatonin. Wearing the amber glasses that eliminate the blue rays allows the body to produce melatonin just like it did before we had electric lights.

For those who may not like wearing glasses, light bulbs that don’t make blue light and filters for computer and TV screens are also available at These products were developed at John Carroll University in 2005. Dr. Richard Hansler led a team of physicists in developing these products. He is a veteran of 42 years doing research for GE Lighting. “When I learned about the harm being done by ordinary light bulbs, I vowed to find a solution,” said Dr. Hansler. Not only does melatonin help people sleep, it is also a powerful disease fighter. Maximizing melatonin production to the 11 – 12 hours known to be possible is believed to reduce the risk of type 2 diabetes, heart disease, obesity, and breast and prostate cancer.

Dr. Hansler’s two books “Great Sleep! Reduced Cancer!” and “Heroes of Cancer Prevention Research” are available on the website. Filters for iPads and iPhones are also available. The most recent new products are filters for large TV and computer screens, up to 58” diagonal. The glasses are sold with a guarantee of money back if they do not improve sleep in 30 days. Even people who sleep well choose to use these products to improve overall health and reduce the risk of deadly disease that may be caused by ordinary light. For more information, call or email Dr. Hansler at 216 397 1657 or rhansler(at)jcu(dot)edu.

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Richard Hansler
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