ophthalmology   148

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Researchers have discovered how Leonardo Da Vinci was able to create masterpieces
Italian polymath Leonardo da Vinci may have had an eye condition that gave him an unusual ability to recreate three-dimensional shapes in his sculptures and paintings, a study has found. With this condition known as strabismus, a person's eyes appear to be pointing in different directions, with only one eye being used to process the visual scene at any one time.This allowed Da Vinci to switch between using two eyes (stereoscopic vision) to give him depth perception, and using just one eye (monocular vision) when he wanted to interpret a three-dimensional image on a flat, two-dimensional canvas.
medical  artists  paintings  icons  polymaths  ophthalmology 
12 weeks ago by thomas.kochi
Pupillary light reflex - Wikipedia
Play media The W-shaped pupil of the cuttlefish dilating when the lights are turned off. The pupillary light reflex ( PLR ) or photopupillary reflex is a reflex…
medicine  health  education  ophthalmology  osce  revision  examination  reference 
august 2018 by asaltydog
Delights for : Diagram of , their layers, and optical nerves from a 17th century miscel…
Ophthalmology  Safavid  eyes  from twitter_favs
july 2018 by dyma
You want to know something about how bullshit insane our brains are?
thread on Saccadic masking

You want to know something about how bullshit insane our brains are? OK, so there's a physical problem with our eyes: We move them in short fast bursts called "saccades", right? very quick, synchronized movements. The only problem is: they go all blurry and useless during this
optics  ophthalmology  optometry  science  sciencefiction 
july 2018 by campylobacter

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