1, which affects the reading experience: color filters will make the text blurred or illegible, thus affecting the reading quality and efficiency.
2, reduce the visual comfort: using too strong color filter, it will lead to too high screen contrast or too large gap between light and dark, and then cause visual fatigue, eye discomfort or headache and other uncomfortable symptoms.
3, damage to vision: long-term use of strong color filters will cause damage to the eyes, such as accelerating eye aging, leading to myopia and other problems. Therefore, when using color filters on the iPhone, you should choose the color filter settings that suit you according to your personal situation and needs, and try to avoid using too strong filters. At the same time, regular eye exercises, timely rest and other measures can also reduce eye injuries.