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Long-term contact lens use can lead to alterations in corneal thickness, stromal thickness, curvature, corneal sensitivity, cell density, and epithelial oxygen uptake, etc. Other changes may include the formation of epithelial vacuoles and microcysts (containing cellular debris) as well as the emergence of polymegethism in the corneal endothelium.
Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.
Abundant visible light to the eyes gives health benefits through its association with the timing of melatonin synthesis, maintenance of normal and robust circadian rhythms, and reduced risk of seasonal affective disorder. [10] On the negative side, UV is a mutagen and carcinogen for skin.
Taking a red-eye flight definitely has its advantages: flying overnight means that you don't lose a day traveling, which means more time to see everything your destination has to offer (or that ...
Dr. Dennis Gross DRx SpectraLite Dpl FaceWare Pro. $455. Though a pricier option, it's a foolproof red light device that sits atop the skin to deliver both red- and blue-light therapy across the ...
Rheum from a cat's eyes. Rheum ( / ruːm /; from Greek: ῥεῦμα rheuma 'a flowing, rheum') is a thin mucus naturally discharged from the eyes, nose, or mouth, often during sleep (contrast with mucopurulent discharge ). [ 1][ 2][ 3] Rheum dries and gathers as a crust in the corners of the eyes or the mouth, on the eyelids, or under the nose ...
Here are her tried-and-true tips after 25 years as a professional traveler: Avoid caffeine: Brown recommends turning down the in-flight coffee service so that the caffeine doesn't keep you up ...
Psychiatry, sleep medicine. Nocturnal sleep-related eating disorder ( NSRED) is a combination of a parasomnia and an eating disorder. It is a non-rapid eye movement sleep (NREM) parasomnia. [1] It is described as being in a specific category within somnambulism or a state of sleepwalking that includes behaviors connected to a person's conscious ...