Why Opticians Aren’t As Bad As You Think

Why Opticians Aren’t As Bad As You Think

Understanding Blue Light Glasses and Their Benefits

Remember those popular blue-blocking glasses that were iconic in the 1980s? You probably didn’t know that they were originally made for the NASA space program. Astronauts need protection for their eyes in outer space, where UV rays from the sun can be incredibly strong.

Aside from providing visual clarity, blue light-blocking glasses do have a biological purpose: to maintain healthy sleep patterns and other physiologic functions by regulating your internal body clock.

In short, you need to avoid blue light at night to keep yourself healthy.

In fact, exposure to artificial light, not just blue light, is one of the most overlooked health risks that exist in modern times. Our forefathers never had to deal with this risk because their body clocks were in perfect sync with the rise and fall of the sun, the only source of light during their time.

Our bodies are still in tune with this internal clock today. In the morning, blue light-rich sunlight alerts your body that you need to wake up. At night, as the sun sets, your body should pick up the signal that you need to sleep.

The problem is when we refuse to sleep our bodies tell us to.

Instead, we turn on our tablets, smartphones and other devices, all of which give us varying amounts of blue light at a time when we should be getting none. Naturally, as a result, the body gets confused.

Nowadays, it’s clearer more than ever that one of the cheapest yet most effective ways of protecting your body’s internal rhythm – and thus improving your sleep patterns and reducing your risk of getting several chronic diseases – is with the use of blue light-blocking glasses not only at night but anytime you’re exposed to artificial light.

You also need to know that artificial blue light shouldn’t only be avoided at night, but all the time. Note that exposure to the sun’s full-spectrum natural light during the day is balanced with red light, and is beneficial and even necessary to resetting your internal rhythm.

If you want to get good sleep, be sure to align your circadian rhythms, the first step to which is getting enough bright light during the day. Melatonin, your sleep and wakefulness pattern, is released by your pineal gland based on the balance of bright light (daytime) and complete darkness (nighttime).

You’re probably asking, how do these special glasses provide protection exactly? These glasses help prevent damage to the DHA essential fat in your retinal pigmented epithelium, or that part of your eye that makes sunlight available to your body by converting it to DC electric current.

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