Is Your iPad Keeping You Up At Night | Long Island Eye Doctor
Everyone has a biological clock that controls their sleep patterns. The clock is activated by visual cues that send a message from the eye to the brain to stay awake or go to sleep.There is a chemical in the body, melatonin, which is secreted before sleep and suppressed during waking hours. Sunlight suppress the production of melatonin in the body. The short wavelength part of sunlight is known as blue light.
Recently, there has been an explosion of devices that emit this short wavelength blue light. The new energy efficient light bulbs, computers, HD TVs, iphones and ipads all give off this blue light. The use of these devices in the evening can suppress melatonin production and cause a Sleep Disorder.
There are several ways to prevent a Sleep Disorder from developing. One way is to stop using the devices an hour or two before going to bed. Another option is to get glasses with a blue blocker lens and wear them when using the devices. There are also screens that you can attach to the devices to block the blue light.
Dr. Michelle Zalaznick