Ask HN: Instead of autofocus glasses, why not have auto "focus mode" glasses?

A Hacker News user proposes that smart glasses could automatically switch between focus modes for phone and computer use by leveraging existing device detection technology, such as iPhones recognizing when a user is looking at them. The system would adjust the glasses' prescription based on the specific device being used, potentially offering a simpler alternative to autofocus glasses that rely on eye alignment tracking.

| |||||||||||| 1 point by | iPhones can already tell when you are looking at them. So they could automatically communicate with your glasses to tell them to go into iPhone focus mode. This would use your prescription but adjusted for phone usage. And maybe in the future, Macs would be able to do something similar so your glasses would use your prescription adjusted for computer usage. So instead of trying to determine distance by looking at eye alignment, which is problematic in some people with eye alignment issues, you just automatically switch between focus modes based on device feedback. | ||||||||||| |