The exposure of humans to artificial light at night (ALAN) with predominant blue part of the
visible spectrum is strongly influencing circadian rhythm and sleep through melanopsin …

Background: It has been shown that short-wavelength blue component of the visible light
spectrum can alter the circadian rhythm and suppress the level of melatonin hormone. The …

About a third of adults have sleep problems, while in the student population this number is
much higher due to a specific lifestyle. It has been shown that the use of devices with light …

Introduction. The use of blue light‐emitting devices (smartphones, tablets, and laptops) at
bedtime has negative effects on sleep due to light stimulation and/or problematic excessive …

Since the use of light and electronic devices is inevitable, the use of blue light filters (in
various light sources, electronic devices or optical devices including intraocular lenses) has …

Background: Exposure to light from viewing devices at night disturbs the circadian rhythm,
especially sleep. The study aimed to assess (a) extent to which smart phones are used by …

Smartphone usage strongly increased in the last decade, especially before bedtime. There
is growing evidence that short-wavelength light affects hormonal secretion …

Smartphones deliver light to users through Light Emitting Diode (LED) displays. Blue light is
the most potent wavelength for sleep and mood. This study investigated the immediate …

Nowadays communication device usage has already reached an unprecedented level.
Based on data provided by Central Statistics Agency (BPS), by 2018, at least 62% of …

Introduction: The aim is to identify whether using mobile phones before going to sleep has
any effect on sleep quality. The light from our mobile phones is" short-wavelength-enriched," …