Man and blue light: The influence of screen light on our health
DOI:
https://doi.org/10.21784/ZC.2025.006Keywords
blue light, health, circadian rhythm, digitisationAbstract
The article considers the impact of blue light emitted by electronic screens on human health. Due to the progressing digitisation and the increasing use of electronic devices such as TVs, smartphones, tablets or computers, this topic has become particularly relevant. The article discusses the results of the latest scientific research on the impact of blue light on our health. Short-term as well as long-term effects of blue light exposure were analysed. The results of these studies indicate potential detrimental consequences for our sleep, eye health and general well-being. After an in-depth study of the topic, it was found that blue light emitted by electronic screens can disrupt our natural sleep rhythm by inhibiting the secretion of melatonin, the hormone responsible for the proper functioning of our “biological clock”, supporting the regulation of the circadian sleep-wake cycle, thanks to which the body knows when it needs to go to sleep and when to get up. Nighttime exposure to blue light can lead to difficulty falling asleep, sleep disturbances and general daytime fatigue. In addition, prolonged exposure to blue light can have a negative impact on eye health, contributing to visual fatigue, irritation and an increased risk of developing eye diseases.
References
Algvere P.V., Marshall J., Seregard S. Age-related maculopathy and the impact of blue light hazard. Acta Ophthalmol.
Allen A.E., Martial F.P., Lucas R.J. Form vision from melanopsin in humans.
Arnault E., Barrau C., Nanteau C., Gondouin P., Bigot K., Viénot F., Gutman E., Fontaine V., Villette T., Cohen-Tannoudji D., Sahel J.A., Picaud S. Phototoxic action spectrum on a retinal pigment epithelium model of age-related macular degeneration exposed to sunlight normalized conditions.
Baker K.E. Some variables influencing vernier acuity.
Behar-Cohen F., Martinsons C., Viénot F., Zissis G., Barlier-Salsi A., Cesarini J.P., Enouf O., Garcia M., Picaud S., Attia D. Light-emitting diodes (LED) for domestic lighting: any risks for the eye? Prog. Retin. Eye Res.
Bigalke J.A., Greenlund I.M., Nicevski J.R., Carter J.R. Effect of evening blue light blocking glasses on subjective and objective sleep in healthy adults: a randomized control trial.
Blume C., Garbazza C., Spitschan M. Effects of light on human circadian rhythms, sleep and mood. Somnologie.
Chakraborty R., Ostrin L.A., Nickla D.L., Iuvone P.M., Machelle T., Stone R.A. Circadian rhythms, refractive development, and myopia.
Chang A.M., Aeschbach D., Duffy J.F., Czeisler C.A. Evening use of light-emitting eReaders negatively affects sleep, circadian timing, and next-morning alertness.
Chellappa S.L., Bromundt V., Frey S., Cajochen C. Age-related neuroendocrine and alerting responses to light.
Do A, Li VW, Huang S, Michalak EE, Tam EM, Chakrabarty T, Yatham LN, Lam RW. Blue-Light Therapy for Seasonal and Non-Seasonal Depression: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Can J Psychiatry. 2022 Oct;67(10):745-754. doi: 10.1177/07067437221097903. Epub 2022 May 6. PMID: 35522196; PMCID: PMC9511000.
Feldkaemper M., Schaeffel F. An updated view on the role of dopamine in myopia.
Foulds W.S., Barathi V.A., Luu C.D. Progressive myopia or hyperopia can be induced in chicks and reversed by manipulation of the chromaticity of ambient light.
Gehring W., Rosbash M. The coevolution of blue-light photoreception and circadian rhythms. J. Mol. Evol.
Ham W.T., Mueller H.A., Sliney D.H. Retinal sensitivity to damage from short wavelength light.
Ham W.T., Mueller H.A., Sliney D.H. Retinal sensitivity to damage from short wavelength light.
Hester L., Dang D., Barker C.J., Heath M., Mesiya S., Tienabeso T., Watson K. Evening wear of blue-blocking glasses for sleep and mood disorders: a systematic review.
Hunter J.J., Morgan J.I., Merigcan W.H., Sliney D.H., Sparrow J.R., Williams D.R. The susceptibility of the retina to photochemical damange from visible light.
Höhn C., Schmid S.R., Plamberger C.P., Bothe K., Angerer M., Gruber G., Pletzer B., Hoedlmoser K. Preliminary results: the impact of smartphone use and short-wavelength light during the evening on circadian rhythm, sleep and alertness.
Jeykishan Kumar K., Bharath Kumar G., Sudhir Kumar R. Photometric assessment of warm and cool white LED bulbs.
Lin C.W., Yang C.M., Yang C.H. Effects of the emitted light spectrum of liquid crystal displays on light-induced retinal photoreceptor cell damage.
O’Hagan J.B., Khazova M., Price L.L.A. Low-energy light bulbs, computers, tablets and the blue light hazard.
Phillips A.J.K., Vidafar P., Burns A.C., McGlashan E.M., Anderson C., Rajaratnam S.M.W., Lockley S.W., Cain S.W.High sensitivity and interindividual variability in the response of the human circadian system to evening light.
Rüger M., St Hilaire M.A., Brainard G.C., Khalsa S.B.S., Kronauer R.E., Czeisler C.A., Lockley S.W. Human phase response curve to a single 6.5 h pulse of short-wavelength light.
Schweizer C., Edwards R.D., Bayer-Oglesby L., Gauderman W.J., Ilacqua V., Juhani Jantunen M., Lai H.K. Nieuwenhuijsen M., Künzli N. Indoor time-microenvironment-activity patterns in seven regions of Europe.
Scientific Committee on Health Environmental and Emerging Risks, Opinion on Potential Risks to Human Health of Light Emitting Diodes (LEDs) 2018.
Stone R.A., Quinn G.E., Francis E.L., Ying G.S., Flitcroft D.I., Parekh P., Brown J., Orlow J., Schmid G. Diurnal axial length fluctuations in human eyes.
Thanaboonyawat I, Wataganara T, Boriboonhiransarn D, Viboonchart S, Tontisirin P. Effect of halogen light in fetal stimulation for fetal well-being assessment. J Med Assoc Thai. 2006 Sep;89(9):1376-80. PMID: 17100372.
Touitou Y., Point S. Effects and mechanisms of action of light-emitting diodes on the human retina and internal clock.
Tähkämö L., Partonen T., Pesonen A.K. Systematic review of light exposure impact on human circadian rhythm.
Wahl S., Engelhardt M., Schaupp P., Lappe C., Ivanov I.V. The inner clock—blue light sets the human rhythm.
Zhang D.-Q., Wong K.Y., Sollars P.J., Berson D.M., Pickard G.E., McMahon D.G. Intraretinal signaling by ganglion cell photoreceptors to dopaminergic amacrine neurons.
Zhao Z.C., Zhou Y., Tan G., Li J. Research progress about the effect and prevention of blue light on eyes.
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https://mobirank.pl/2023/04/11/naukowcy-zbadali-dzialanie-zegara-biologicznego/
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