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Wills Eye Hospital is a non-profit eye clinic and hospital in Philadelphia, Pennsylvania. It was established in 1832 and is the oldest continually operating eye-care facility in the United States. It is the ophthalmology residency program for Thomas Jefferson University . Since 1990, Wills Eye Hospital has consistently been ranked one of the ...
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.
Health threats from cosmic rays are the dangers posed by cosmic rays to astronauts on interplanetary missions or any missions that venture through the Van-Allen Belts or outside the Earth's magnetosphere. [ 1][ 2] They are one of the greatest barriers standing in the way of plans for interplanetary travel by crewed spacecraft, [ 3][ 4][ 5] but ...
The University of Pennsylvania Health System ( UPHS) is a major multi-hospital health system headquartered in Philadelphia, Pennsylvania. UPHS and the Perelman School of Medicine at the University of Pennsylvania together comprise Penn Medicine, a clinical and research entity of the University of Pennsylvania.
RELATED: What your eyes say about your health "Since patients oftentimes require multiple treatments and overexposure to this, light can be potentially dangerous to your vision," she continued. "I ...
Retinal scan. A retinal scan is a biometric technique that uses unique patterns on a person's retina blood vessels. It is not to be confused with other ocular-based technologies: iris recognition, commonly called an "iris scan", and eye vein verification that uses scleral veins.
Eccentricity effect. The eccentricity effect is a visual phenomenon that affects visual search. As retinal eccentricity increases (i.e. the light of the image enters the eye at a larger angle and approaches peripheral vision), the observer is slower and less accurate to detect an item they are searching for. [ 1]
The company has been upgrading patients who use its eye treatment, Eylea, to a higher-dose version to beat the impact from cheaper biosimilars available in the market and rival drugs. U.S. sales ...