<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>astrange</author><text>AR&amp;#x2F;VR doesn&amp;#x27;t work the same way as a 2D screen because of the lenses. Your eyes are essentially focusing at infinity.&lt;p&gt;It can lead to completely different problems, mostly in children. Adults instead get terrible motion sickness if you&amp;#x27;re not very careful.</text><parent_chain><item><author>nntwozz</author><text>What are the health implications of watching a screen this close for many hours every day? Is there scientific consensus on this or are we exploring uncharted waters?</text></item></parent_chain></comment><story><title>visionOS</title><url>https://developer.apple.com/visionos/</url></story>
<instructions>Your goal is to analyze the following comment and estimate how highly it will be upvoted by the Hacker News community.</instructions><comment><author>viraptor</author><text>No idea about the eyesight, but a personal anecdote about the eyetracking for the cursor&amp;#x2F;selection: It&amp;#x27;s an existing assistive technology and a few years ago I tried it for fun for a day. It can get tiring and you really exercise the muscles moving your eyeballs. I suspect it&amp;#x27;s something that you train &amp;#x2F; get used to in the end, but it&amp;#x27;s definitely an unexpected strain on the body. I suspect that&amp;#x27;s going to become a new thing people experience like the texting thumb RSI.</text><parent_chain><item><author>nntwozz</author><text>What are the health implications of watching a screen this close for many hours every day? Is there scientific consensus on this or are we exploring uncharted waters?</text></item></parent_chain></comment><story><title>visionOS</title><url>https://developer.apple.com/visionos/</url></story>