Key points for eye use at night: Balance between ambient light, brightness and blue light
Guide
Three principles for night viewing: Do not look at the screen in total darkness, reduce the brightness to match the environment, and lower the color temperature one hour before going to bed. Dyeing anti-blue light film is not an ideal choice for night-time solutions. This article presents an executable list of screen usage at night.
01. Ambient Light: Creating "Background Brightness"
Looking at a lit screen in a completely dark room is a combination with a relatively high visual load: the pupils repeatedly adapt between the bright area of the screen and the dark environment. Turn on a background light with a low color temperature and low brightness (to avoid the light shining directly on the screen surface), so that the screen is no longer the only bright spot in the field of vision.
Details of the screen position: The top of the screen is slightly below the line of sight, which not only reduces the exposure of the eye surface but also avoids the mirror reflection of the ceiling light on the screen surface.
02. Brightness and color temperature: System-level solutions are preferred
The brightness is based on the reference of "the brightness of a white image close to that of a piece of paper in the current environment". One hour before going to bed, turn on the night reading mode to lower the color temperature - the evidence chain of melatonin supports the rhythmic intervention of "reducing short-wave light exposure at night".
This is also the reason why we do not recommend using dyed anti-blue light films as the main force for "night eye protection" : the system night view is free, can be turned off at any time, and does not sacrifice the color during the day, while dyed films are color-biased 24 hours a day.
03. Reflection: Overlooked nighttime factors
The reflections of the lamps on the screen at night are more dazzling than those during the day - the darker the environment, the higher the relative contrast of the reflected light. The benefits of low-reflective coating (AR) at night are actually greater than those during the day: after the reflection fades, the eyes do not have to repeatedly focus between the "content" and the "reflection".
Combination suggestion: Background light + system night view + low-reflection devices, each layer works independently. As with any eye care plan, if you experience persistent soreness, swelling and pain, please seek medical attention for an assessment.