(Here are tips for increasing natural light safely while working at home)
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3 Many users also prefer dark mode under lower-light conditions, which suggests that surrounding light plays an important role in overall performance. Poor ambient lighting: Researchers have shown that inadequate lighting worsens overall performance associated with “light mode” displays. Plus, auxiliary factors can have a dramatic influence on the physiological outcomes with dark mode, several of which we describe below. Each person responds differently to various therapies, even if they are widely considered to be helpful by the medical community. Other Factors that Impact Dark Mode's EffectivenessĪs we like to say, "every brain is different," and that principle certainly seems to hold true in the case of dark mode and its supposed benefits for people with sensory issues. While that does not immediately signal that it will ease sensitivity to light or headache episodes across the board, it does show that under the right circumstances, it can be a positive feature for some patients.
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Our team analyzed hundreds of Twitter’s “Top Tweets” dating back to 2017 ( n=232), in which dark mode or dark theme is specifically referenced, and we found that approximately 63% of users either: 2Īmong patients, it does appear there may be a more favorable sentiment toward dark mode. And researchers also found no difference in headaches or eye strain based on the display settings-at least indicating that physical symptoms may not improve with darkened displays. Under certain conditions, such as reduced ambient lighting and smaller text size, dark theme may be particularly uncomfortable. This contradicts earlier studies that show light mode as significantly more advantageous for younger and older adults, specifically leading to better visual performance. 1 The analysis also suggested that visual focus and device usability were improved with a dark theme in use. However, these benefits remain largely unproven, with clinical research specifically wrestling with inconsistent findings over the years.Ī 2019 study discovered that dark mode (which some researchers label “negative display polarity”) reduces visual fatigue, thus potentially lowering the risk of other complications like irritated eyes and blurred vision, among other symptoms. " improves visibility for users with low vision and those who are sensitive to bright light makes it easier for anyone to use a device in a low-light environment." In documentation for web developers, Google offered a very straightforward description of the value of its dark theme for personal health: Dark Mode for Sensory Sensitivities Has Mixed Results
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Let's look closer at what the experts are saying. Here are the most prominent brands that have made the feature available:īut saying that dark mode has therapeutic value for people with light sensitivity does not necessarily mean it is been successful in achieving that goal. This spurred the tech company’s product team to include it in a September 2019 platform update.Īs users have been quick to adopt or request it, there has been a noticeable rise in the number of applications introducing dark mode for their platforms. For example, more than one-third of all Slack users who requested a dark theme cited underlying health concerns (such as photophobia or migraine attacks) as the reason for wanting it, according to Slack accessibility consultant George Zamfir on Twitter. While it has other purported benefits, dark mode in particular has caught fire over the past few years as an accessibility feature for those with visual impairments or sensitivities. It inverts the primary color scheme, swapping traditional dark-on-light colors for its counterpart: light text on a dark background. What is Dark Mode?ĭark mode-which can go by other names such as night mode or dark theme-changes the visual display of device screens, websites, or mobile applications for which it is enabled. But does it actually lower the risk for headaches, eye strain and other symptoms? We'll explain what dark mode is, where you can find it, and what research and users say about its effectiveness. It can be especially attractive as an option for people with light sensitivity or photophobia because of its potential to ease their discomfort while using digital devices. One of the more popular developments in accessible online design has been dark mode.