this post was submitted on 22 May 2025
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398
Infrared contact lenses let you see in the dark (arstechnica.com)
submitted 1 day ago by will_a113@lemm.ee to c/technology@lemmy.world
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[–] hsdkfr734r@feddit.nl 17 points 1 day ago (2 children)

jellyfish eyedrops?

Why would they need eye drops? They are submerged in salty water.

[–] unphazed@lemmy.world 7 points 1 day ago (1 children)

It was an eyedrop that used a protein or something from jellyfish, that affected human eyes to temporarily see better in low light. Been years since I've heard anything about it. Another sensationalized "breakthrough" I guess.

[–] DempstersBox@lemmy.world 1 points 1 day ago

So, the articles are old, but chlorin e6 mixed with insulin and DMSO in saline gives a temporary boost to nightvision.

Sounds fucking awesome, and the ingredients all seem fairly easy to acquire. No commercial product, but why would there be?

[–] darklamer@lemmy.dbzer0.com 4 points 1 day ago (1 children)

… and don't have eyes!

[–] hsdkfr734r@feddit.nl 2 points 1 day ago* (last edited 1 day ago) (1 children)

Yes. Light receptors maybe, but eyes...

source

... and light-sensing organs called ocelli, which can sense the presence and absence of light. Additionally, some jellyfish have sensory structures called rhopalia, which contain receptors to detect light, chemicals and movement.

Oh wait! This is unexpected:

... One group of jellyfish, the cubozoan jellyfish, have complex eyes... with lenses, corneas and retinas in their rhopalia.

Huh. Wiki agrees:

box jellyfish are unique in the possession of true eyes, complete with retinas, corneas and lenses.[13] Their eyes are set in clusters at the ends of sensory structures called rhopalia

Whoa.

[–] darklamer@lemmy.dbzer0.com 2 points 1 day ago

WTF!? [subscribe to jellyfish facts]