Warning! If you are sensitive to "creepy" animations or have an aversion to realistic eyeballs in general, please do not watch this clip. It's not explicit in any way, but the model and textures could be offputting to certain tastes. Otherwise, I hope you enjoy it. This was created with Blender 2.81 using the Cycles GPU render engine on my Nvidia RTX 2070 graphics card. Each frame was rendered with just 90 samples, then denoising was applied using the Intel Denoise node in the compositor. Each frame took around 30 seconds to render (500 frames total). I could have probably used more samples to get a cleaner result, but this was only a 20-second experimental animation anyway. I used the eyeball model specifically because I was experimenting with SSS and trying to get a more realistic looking texture. Thanks for watching it.

OK sort of creepy but still outstanding work

Yeah, I've actually been putting a small warning on this in certain forums for people who may be a bit sensitive to disembodied eyeballs in CG. In a way, I'm glad it turned out creepy because it means the shaders are doing their job for some real results. The main purpose of this animation really was to test out a particular set of textures and shaders for eyes and see how they hold up under extreme animation and lighting conditions.

Nothing wrong with creepy it actually reminded me of a description from one of the Prequel Dune books done my Frank Herbert's son where they describe a cylindrical container that one of the villainous houses are harvesting eyes from nearly dead soldiers to resell them as replacements and you can still see the eyes moving similar to your video and when I watched it was like that description automatically popped into my head lol