Änderungen

:''We judged 65% of studies to have a high risk of bias due to outcome assessors not being masked (detection bias) and 59% to be at high risk of bias of performance bias as participants and personnel were not masked. Thirty-five per cent of studies were pre-registered on a trial registry.''

:''We judged 65% of studies to have a high risk of bias due to outcome assessors not being masked (detection bias) and 59% to be at high risk of bias of performance bias as participants and personnel were not masked. Thirty-five per cent of studies were pre-registered on a trial registry.''

Die Autoren kamen zum Ergebnis dass kein Vorteil für Blaufilter Brillen belegbar ist:  

Die Autoren kamen zum Ergebnis dass kein Vorteil für Blaufilter Brillen belegbar ist. Es liess sich nicht belegen, dass Blaufilterbrillen die visuellen Ermüdung bei Computernutzung mindern. Nebenwirkungen des Tragens der Brillen sind Kopfschmerzen, verstärkte depressive Symptome, gedrückte Stimmung und Unbehagen:  

:''Authors' conclusions: This systematic review found that blue-light filtering spectacle lenses may not attenuate symptoms of eye strain with computer use, over a short-term follow-up period, compared to non-blue-light filtering lenses. Further, this review found no clinically meaningful difference in changes to CFF with blue-light filtering lenses compared to non-blue-light filtering lenses. Based on the current best available evidence, there is probably little or no effect of blue-light filtering lenses on BCVA compared with non-blue-light filtering lenses. Potential effects on sleep quality were also indeterminate, with included trials reporting mixed outcomes among heterogeneous study populations. There was no evidence from RCT publications relating to the outcomes of contrast sensitivity, colour discrimination, discomfort glare, macular health, serum melatonin levels, or overall patient visual satisfaction. Future high-quality randomised trials are required to define more clearly the effects of blue-light filtering lenses on visual performance, macular health and sleep, in adult populations.''

:''Authors' conclusions: This systematic review found that blue-light filtering spectacle lenses may not attenuate symptoms of eye strain with computer use, over a short-term follow-up period, compared to non-blue-light filtering lenses. Further, this review found no clinically meaningful difference in changes to CFF with blue-light filtering lenses compared to non-blue-light filtering lenses. Based on the current best available evidence, there is probably little or no effect of blue-light filtering lenses on BCVA compared with non-blue-light filtering lenses. Potential effects on sleep quality were also indeterminate, with included trials reporting mixed outcomes among heterogeneous study populations. There was no evidence from RCT publications relating to the outcomes of contrast sensitivity, colour discrimination, discomfort glare, macular health, serum melatonin levels, or overall patient visual satisfaction. Future high-quality randomised trials are required to define more clearly the effects of blue-light filtering lenses on visual performance, macular health and sleep, in adult populations.''

==Literatur==

==Literatur==

*John G Lawrenson, Christopher C Hull, Laura E Downie: The effect of blue-light blocking spectacle lenses on visual performance, macular health and the sleep-wake cycle: a systematic review of the literature, November 2017, Review Ophthalmic Physiol Opt, 37(6):644-654, PMID: 29044670 DOI: 10.1111/opo.12406

*John G Lawrenson, Christopher C Hull, Laura E Downie: The effect of blue-light blocking spectacle lenses on visual performance, macular health and the sleep-wake cycle: a systematic review of the literature, November 2017, Review Ophthalmic Physiol Opt, 37(6):644-654, PMID: 29044670 DOI: 10.1111/opo.12406

*H R Taylor, S West, B Muñoz, F S Rosenthal, S B Bressler, N M Bressler: The long-term effects of visible light on the eye, Arch Ophthalmol, Januar 1992, 110(1):99-104. doi: 10.1001/archopht.1992.01080130101035

*H R Taylor, S West, B Muñoz, F S Rosenthal, S B Bressler, N M Bressler: The long-term effects of visible light on the eye, Arch Ophthalmol, Januar 1992, 110(1):99-104. doi: 10.1001/archopht.1992.01080130101035