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๐Ÿ‘๏ธ๐Ÿฝ๐Ÿ‘๏ธ (mander.xyz)
submitted 1 year ago by to c/science_memes@mander.xyz
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[โ€“] 80 points 1 year ago (8 children)

That's also why certain contact lenses can't be worn overnight or for long periods of time because they aren't as breathable. At least that's what my eye doctor said when I got them.

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  • [โ€“] 72 points 1 year ago (6 children)

    Yep and if you wear them for too long your body will grow new blood vessels to supply your oxygen-starved eyes with what they need. These new blood vessels can cover your retina and can lead to blindness.

    Learned that one by sleeping in daily disposable contacts for a while and losing a significant portion of my peripheral vision.

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  • [โ€“] 31 points 1 year ago (4 children)

    Forever?

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  • [โ€“] 1 point 1 year ago

    Kind of. This happened to me. My vision was noticeably bad when I was diagnosed with it, but once I started taking care of my eyes, they blood vessels shriveled and shrank, and my vision mostly improved to the point where I didn't notice it anymore.

    100% recovered, no. But better.

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  • [โ€“] 23 points 1 year ago

    That's correct. It's generally recommended for lenses to have at least over 100 Dk/t for sleep and they need to be approved for that. Dk/t is the measured oxygen transmission through the lens material, the higher, the better. I would not recommend lenses with Dk/t of 30 and under even for daily wear as they starve eyes of oxygen. Especially since there are very affordable ones with very high Dk/t like Miru and Biofinity (around 160 iirc).

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