In iOS 16.4 and iPad 16.4, Apple has added an accessibility option that dims video when flashes of light or strobe effects are detected. Here's how to enable the feature on your device.

When watching video on your iPhone or iPad, there may be times when the content includes rapid flashes of light or stroboscopic effects. In such cases, a key concern is user safety.

Some people with photo-sensitive epilepsy can be affected by strobing light, which may induce seizure. The effect can also produce undesirable sensations amongst the general population, such as disturbed vision.

With this in mind, Apple has added a new option in its accessibility feature set that can automatically reduce the brightness of video if it includes triggering light effects.

The following steps show you how to enable the feature. Note that you must have iOS 16.4 or iPadOS 16.4 installed on your device to see the option. You can check that your device is up-to-date by going to Settings -> General -> Software Update.

  1. Open the Settings app.
  2. Scroll down the menu and tap Accessibility.
  3. Under the "Vision" section, tap Motion.
  4. Toggle the switch next to Dim Flashing Lights to the green ON position.


That's all there is to it. Next time you play video and iOS detects the lighting effects, the screen will be automatically dimmed to reduce the possibility of a negative reaction.

Popular Stories

iOS 18 CarPlay Feature

iOS 18 Adds These 5 New Features to CarPlay

Thursday June 13, 2024 7:44 am PDT by
Apple did not mention CarPlay during its WWDC keynote this week, but iOS 18 includes a handful of new features for the in-car software. Overall, there is not a whole lot new for CarPlay on iOS 18, with changes seemingly limited to the Messages and Settings apps so far. Below, we recap everything new for CarPlay on iOS 18. New for CarPlay on iOS 18 1. Contact Photos in Messages App...
ios 18 button bulge

iOS 18 Adds Pop-Out Bezel Animation When Pressing iPhone Buttons

Tuesday June 11, 2024 10:40 am PDT by
iOS 18 includes a small but interesting change for the buttons on the iPhone, adding more of a visual element when changing volume, activating the Action button, or locking the screen. When you press an iPhone button in iOS 18, the display bezel bulges outward slightly. This feature is available for the volume buttons, Action button and the power button, and it will also likely be used for...

First Look at Messages via Satellite in iOS 18

Thursday June 13, 2024 11:29 am PDT by
Apple has been gradually expanding its suite of satellite connectivity features for iPhone, and iOS 18 brings a significant new one in the form of Messages via satellite. The feature allows users to send and receive iMessages and SMS texts, including emoji and Tapbacks, while out of range of cellular and Wi-Fi networks. CNET met up with Apple's senior director of platform product marketing,...
iOS 18 Wallet Feature

Here's What's New in Apple Wallet on iOS 18 for Event Tickets and More

Friday June 14, 2024 7:32 am PDT by
iOS 18 includes a handful of enhancements to the Wallet app on the iPhone, with new features for Apple Pay, Apple Cash, event tickets, and more. Below, we outline everything new for the Wallet app on iOS 18, based on information from Apple's press release and a WWDC 2024 coding session. Redesigned Event Tickets Event tickets have an all-new design in the Wallet app on iOS 18, complete...