In a move to help address the rising global incidence of myopia, which is the leading cause of vision impairment globally, many Apple devices are now equipped with a “Screen Distance” function. Apple’s new vision health features were first announced in June 2023 are are now available for Apple iPhone users.

To address the concerns of viewing a device too closely for an extended period of time, which can increase the risk of myopia for younger users and eye strain for users of all ages, Apple’s Screen Distance feature in Screen Time uses the TrueDepth camera (on supported models)—the same TrueDepth camera that powers Face ID—to detect when an iPhone is held closer than 12 inches for an extended period, and encourages the user to move it farther away.

According to the Apple support guide, Screen Distance can remind younger users to engage in healthy viewing habits that can lower their risk of myopia. It gives adult users the opportunity to reduce digital eyestrain. Screen Distance is turned on by default for children under 13 in a Family Sharing group, note the company guidance.

More information information about the function available can be found on the Apple iPhone support website here.