It is no coincidence that using the cell phone or the PC late at night complicates sleep, or that in any other low-light environment, the eyes suffer with the enormous glow of these screens. The problem is that the only solution present, lowering the brightness, does not solve the problem because it sacrifices the visualization and increases the effort for the eyes.
In short, a solution is needed, and a very simple one is to deploy a filter or a protective screen that reduces the ocular exhaustion and that our dream is affected. This solution is already offered in the form of applications and there are for Android and desktop:
Twilight a wonder for Android
Twilight works at all times as it is responsible for detecting the time and location and thereby automatically adjust the brightness of the screen of our mobile or tablet as well as the color filter that will present. Controlling the levels of melatonin – regulating sleep -, limiting the spectrum of blue light and, generally, protecting the hours of sleep after long exposure, are the key and the goal of the application.
Bluelight filter for Android
With 5 filter colors, this alternative to Twilight also attacks eye exhaustion and tries to make sleep not be hampered by long exposure to blue light devices. It does not have many options but it is on purpose as its task is done in the simplest way: automatically, with buttons on and off – with space in the notifications – and with a simple dimmer.
F.lux , for Windows, Linux and Mac
This benchmark in desktop computers, Windows, Mac and Linux, detects our location and the time zone to gradually modify its protection filter: barely starts the night, is dim; In the early hours or very early, it becomes more intense; At dawn, begins to deactivate until approaching its next cycle of work. You can configure other locations, customize the speed of your transitions, temporarily stop it, activate a movie mode, and adjust the intensity of your filter.
G.lux, a Chrome extension
Finally, a tool based on F.lux but to use directly in the browser as an extension for Chrome, something very useful when you want to protect your eyes but it is not possible to have administrator access to install applications on the PC – for example, At school or at work – or simply do not want to resort to desktop utilities. It is composed of a color temperature selector – the tone to be applied -, a switch to control the intensity of the filter and a timer to program an automatic activation time.