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CodexArcanum ,

Floaters, caused (I believe) by lensing of your aqueous humor (the liquid in your eyes) which is a viscous fluid. That’s why they show up more on bright solid color backgrounds (like the sky). As you get older, your eyeball fluid gets thicker and chunkier causing more of them.

Eiri ,

Those are so cool. They’re the only way (I know of) that you can see molecules with your naked eye. Actual molecules! That’s practically at the level of atoms, and you can see that microscopic stuff!

Also red blood cells. It’s pretty cool that if you stare at the sky (not the sun; please not the sun) you can sometimes see red blood cells move in the back of your eye. Single cells! Amazing.

filcuk ,

Err, I don’t think that’s right. That’s physically impossible. Only electrons are small enough to visualise molecules and atoms, which is why you need electron microscope to see those.

Eiri ,

Whoa, my optometrist told me that’s what they are and now I’m really disappointed.

Considering their shape and what you said about them being impossible to observe in visible light… I guess those branch-like pieces are cell organelle fragments instead?

Dang, and here I was excited to be seeing molecules.

Flax_vert ,

You can see cells with the naked eye as well. Notably, eggs. Chicken eggs are also one cell. The largest cell is an ostrich egg.

Gemini24601 ,
@Gemini24601@lemmy.world avatar

Don’t forget about Valonia ventricosa as well!

frezik ,

There are amoebas that reach 5mm in length.

IIRC, there are limits on how big they can get based on how far RNA can travel after copying DNA.

Flax_vert ,

I thought they were cells

Ioughttamow ,

Acid rain is when they’re angry?

saltesc ,

I don’t get these. Everyone else does and I don’t lol. Sometimes I see a flash of light in a spot. Pretty sure that’ll be an aneurysm in a couple decades.

Tamkish ,

Right now I couldn’t see them even if I tried, from what I remember I saw them only when looking in bright light against solid color (white wall, blue sky, …) it’s not as solid as the image would suggest, it’s also WAAAAY smaller and more transparent

PrettyFlyForAFatGuy ,

i got them a lot more when i was younger.

perhaps because my eyesight was better then? maybe the’re still there i and i just dont see them anymore.

i do wear glasses these days

Eiri ,

They are a lot more obvious if you look at bright surfaces, such as the sky, so one factor may be that you’re not outside as much.

I don’t think they’re supposed to go away; rather the contrary, but who knows.

One thing I do know though: if the amount increases noticeably, it could be a sign of something bad, so get that checked out.

HottieAutie ,

When Ingot my eyes checked a few months ago, they where looking inside and asked me if I see a bright flash from time to time. I said that I do. They then said that if it increases in frequency, duration, or strength, I need to come in ASAP. They seemed concerned, but didn’t want to elaborate for my sanity.

bran_buckler ,

Is this X-Men’s Cyclops’ origin story? Maybe they’re worried you’ll have laser eyes and will need to wear protective eye wear for the safety of everyone around you.

Really, though, lots of eye flashes can be an issue with your retina. For me, I suddenly had a ton of flashes, like shooting stars, followed by a dimness that lasted for several minutes. It turned out to be an ocular migraine, which was kind of scary not knowing what was going on at the time.

PopOfAfrica ,

These are more common if you frequently rub your eyes.

0ops ,

Me neither. Those other ghostly spermies must be like “eh, your life kinda sucks anyway. Let’s torment someone else”

atro_city ,

That's your eyeball slowly detatching itself from its socket because your don't spend enough time outside.

Deme ,

It’s interesting that the view isn’t horribly pixelated due to too much screen time. Anon must like books or something…

Rakonat ,

Thats not what they are or how they work EXCEPT incases where you suddenly see them all the time regardless of light conditions.

mycodesucks ,
@mycodesucks@lemmy.world avatar

Absolutely not. One of the others can have it.

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