So far, there isn’t strong evidence that the blue light from smart devices does damage to your eyes. The cells in your eyes sense those wavelengths of light and pass on the message to the brain, disrupting the scheduled release of melatonin. Optimally, at night less blue light meets our field of vision so our brain begins releasing melatonin, a hormone that regulates our sleep cycle.īut devices with screens emit large amounts of blue light, as do LED lights. Light with wavelengths from the blue portion of the spectrum keeps us alert. Normally, our eyes use the light around us to figure out what time of day it is and cue our brains whether we should prepare for sleep. And if you use your few precious hours before sleep relaxing in front of these devices, your sleep could be the victim. With the rise of smartphones and streaming video services, people spend many more hours a day interacting with electronics. Blue Light Makes Your Eyes Want to Pull an All-Nighter Visit All About Eyes to rule out an infection if you experience these symptoms. Pay attention to rheum with an unusual color or consistency, and take note if your eyes produce more rheum than usual. But if you notice changes in your rheum, you may have an eye infection such as pink eye. You can simply remove it with a warm, damp washcloth. Typically, eye goop, which is properly called rheum, isn’t a sign of any eye condition. However, during those hours, the goop doesn’t get a chance to accumulate, so you don’t notice any gunk. The same cleaning process happens throughout the day when you blink. The closed eyelids guide the goop that ends up in the corners of your eye near your nose and along your lash lines. The tears pick up dust, old eye cells, mucus, bacteria, and any other small foreign substances in your eye. Your tears wash over your eyes as they move around during different sleep phases. When you close your eyes for a long night’s rest, they stay firmly closed. Since the Sandman didn’t sprinkle sleep sand on your eyes, how did that goop get there? It accumulates as a result of your eyelids and tears combining to become a carwash for your eyes. Your Eyes Go Through a Carwash Every Night Discover three facts about your eyes and sleep below. But even without visits from the Sandman, your eyes have quite an interesting nightlife. Or, you may jokingly blame him for the goop you find in the corners of your eye every morning. ![]() This nice version has made recent appearances in films like “Rise of the Guardians” and “The Santa Clause 2.” Other depictions of the Sandman are crueler and give him sinister motives.Īlthough you know the Sandman doesn’t exist, you might wish he would pay you a visit on nights when you struggle to fall asleep. ![]() This magical man first appeared in a story by Hans Christian Andersen, where he was kind and told beautiful stories to kids as they slept. The sand prevents the eyes from reopening until morning so the children will remain in dreamland. Have your heard of the mythical character the Sandman? Legend has is that the Sandman drops fine grains on children’s eyes as they fall asleep.
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