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Author Zhao, Z., Zhou, Y., Tan, G., & Li, J.
Title Research progress about the effect and prevention of blue light on eyes Type Journal Article
Year 2018 Publication International Journal of Ophthalmology Abbreviated Journal
Volume 11 Issue 12 Pages 1999-2003
Keywords (down) Vision; Human Health; Review
Abstract In recent years, people have become increasingly attentive to light pollution influences on their eyes. In the visible spectrum, short-wave blue light with wavelength between 415 nm and 455 nm is closely related to eye light damage. This high energy blue light passes through the cornea and lens to the retina causing diseases such as dry eye, cataract, age-related macular degeneration, even stimulating the brain, inhibiting melatonin secretion, and enhancing adrenocortical hormone production, which will destroy the hormonal balance and directly affect sleep quality. Therefore, the effect of Blu-rays on ocular is becoming an important concern for the future. We describe blue light's effects on eye tissues, summarize the research on eye injury and its physical prevention and medical treatment.
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Call Number IDA @ intern @ Serial 2313
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Author Benedetto, M.M.; Contin, M.A.
Title Oxidative Stress in Retinal Degeneration Promoted by Constant LED Light Type Journal Article
Year 2019 Publication Frontiers in Cellular Neuroscience Abbreviated Journal Front. Cell. Neurosci.
Volume 13 Issue Pages
Keywords (down) Vision; Human Health
Abstract Light pollution by artificial light, might accelerate retinal diseases and circadian asynchrony. The excess of light exposure is a growing problem in societies, so studies on the consequences of long-term exposure to low levels of light are needed to determine the effects on vision. The possibility to understand the molecular mechanisms of light damage will contribute to the knowledge about visual disorders related to defects in the phototransduction. Several animal models have been used to study retinal degeneration (RD) by light; however, some important aspects remain to be established. Previously, we demonstrated that cool white treatment of 200 lux light-emitting diode (LED) induces retinal transformation with rods and cones cell death and significant changes in opsin expression in the inner nuclear layer (INL) and ganglion cell layer (GCL). Therefore, to further develop describing the molecular pathways of RD, we have examined here the oxidative stress and the fatty acid composition in rat retinas maintained at constant light. We demonstrated the existence of oxidative reactions after 5 days in outer nuclear layer (ONL), corresponding to classical photoreceptors; catalase (CAT) enzyme activity did not show significant differences in all times studied and the fatty acid study showed that docosahexaenoic acid decreased after 4 days. Remarkably, the docosahexaenoic acid diminution showed a correlation with the rise in stearic acid indicating a possible association between them. We assumed that the reduction in docosahexaenoic acid may be affected by the oxidative stress in photoreceptors outer segment which in turn affects the stearic acid composition with consequences in the membrane properties. All these miss-regulation affects the photoreceptor survival through unknown mechanisms involved. We consider that oxidative stress might be one of the pathways implicated in RD promoted by light.
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ISSN 1662-5102 ISBN Medium
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Notes Approved no
Call Number GFZ @ kyba @ Serial 2333
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Author Zele, A.J.; Cao, D.
Title Vision under mesopic and scotopic illumination Type Journal Article
Year 2014 Publication Frontiers in Psychology Abbreviated Journal Front Psychol
Volume 5 Issue Pages 1594
Keywords (down) vision; color; cones; mesopic; photopic; rods; scotopic; temporal
Abstract Evidence has accumulated that rod activation under mesopic and scotopic light levels alters visual perception and performance. Here we review the most recent developments in the measurement of rod and cone contributions to mesopic color perception and temporal processing, with a focus on data measured using a four-primary photostimulator method that independently controls rod and cone excitations. We discuss the findings in the context of rod inputs to the three primary retinogeniculate pathways to understand rod contributions to mesopic vision. Additionally, we present evidence that hue perception is possible under scotopic, pure rod-mediated conditions that involves cortical mechanisms.
Address Visual Perception Laboratory, Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago Chicago, IL, USA
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Language English Summary Language Original Title
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ISSN 1664-1078 ISBN Medium
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Notes PMID:25657632; PMCID:PMC4302711 Approved no
Call Number LoNNe @ christopher.kyba @ Serial 1180
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Author Tosini, G.; Ferguson, I.; Tubota, K.
Title Effects of blue light on the circadian system and eye physiology Type Journal Article
Year 2016 Publication Molecular Vision Abbreviated Journal Mol Vis
Volume 22 Issue Pages 61-72
Keywords (down) Vision; blue light; Circadian Rhythm; eye; physiology
Abstract Light-emitting diodes (LEDs) have been used to provide illumination in industrial and commercial environments. LEDs are also used in TVs, computers, smart phones, and tablets. Although the light emitted by most LEDs appears white, LEDs have peak emission in the blue light range (400–490 nm). The accumulating experimental evidence has indicated that exposure to blue light can affect many physiologic functions, and it can be used to treat circadian and sleep dysfunctions. However, blue light can also induce photoreceptor damage. Thus, it is important to consider the spectral output of LED-based light sources to minimize the danger that may be associated with blue light exposure. In this review, we summarize the current knowledge of the effects of blue light on the regulation of physiologic functions and the possible effects of blue light exposure on ocular health.
Address Department of Pharmacology and Toxicology and Neuroscience Institute, Morehouse School of Medicine, Atlanta, GA
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Publisher NCBI Place of Publication Editor
Language English Summary Language English Original Title
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ISSN 1090-0535 ISBN Medium
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Notes Approved no
Call Number IDA @ john @ Serial 2216
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Author Warrant, E.
Title Superior vision in nocturnal insects inspires new night vision technologies Type Newspaper Article
Year 2016 Publication SPIE Newsroom Abbreviated Journal SPIE Newsroom
Volume Issue Pages
Keywords (down) Vision; Animals; Instrumentation
Abstract Algorithms that dramatically improve the quality of video sequences captured in very dim light have been developed on the basis of the neural mechanisms in nocturnal insects with excellent visual capabilities.
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ISSN 1818-2259 ISBN Medium
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Notes Approved no
Call Number LoNNe @ kyba @; GFZ @ kyba @ Serial 1418
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