this post was submitted on 29 Jun 2024
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No Stupid Questions
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I'm curious if that would be different for simulated blurriness, like if you watch a blurry video, would that be a different story? I feel like that would be different because its not impairing the objective signal or functioning of your normal vision
Like if you have blurry vision, and you don't wear vision-correcting glasses, does that set off an inevitable downward spiral of degradation of your vision?
Why is worse than closing your eyes, probably super dumb question but might as well iron out my understanding of this while we're here 🙏
It is different for simulated blurriness, because simulated blurriness can't be modulated by your ocular muscles, so they won't reflexively strain to focus.
You couldn't really achieve that effect by actually putting any kind of lens in front of your eyes though. That is not a simulation of blurriness, it is actual blurriness.
The primary way it would be bad for your eyesight is by inducing eye strain, itself a primary cause of blurred vision. It's a reflex of the subconscious brain - either your eyes will be constantly trying to focus, which strains them, or you're consciously unfocusing them, which also strain them.
If you had eye strain causing blurry vision naturally and didn't correct it with glasses, likely there'd be no downward spiral unless you have some other condition causing that. It'd potentially cause other issues like headaches or spasms though
Just a guess, but I think if your eyes try to focus on something and it improves the image clarity (e.g. using glasses that don't fit your eyes), then it'll keep trying and end up causing problems. If attempts at focusing have no effect (e.g. looking at blurry images), then it'll stop trying and your eyes can properly relax.
Whats the timeframe tho. For reasons I dont want to throw out there haha I can sort of prove this is nominally inaccurate in my case on the assumption that the time spent in blur is brief.
Looking directly at the sun for short periods of time doesn’t immediately cause problems, but years down the line you will start to notice a section of your vision start to become like a void, no color, no light, just a lack of sight.
Just because you don’t notice an immediate effect doesn’t mean you’re not causing harm. The human body is a wonder of redundancy, and having ways of compensating in the short term. But eventually those compensations start to fade.