Yearly Eye Exam
Brown
What It’s Like To Go Blind
This is important for scientists and non-scientists alike. You might be surprised at how many people do not know someone who is blind or has gone through a blinding disease. You might be further surprised at how many scientists that are engaged in vision research do not really know what its like to have gone through …
A View To A Hack
Sea Anemones
Glowing Sharks Have Unusual Eyes
There are species of shark that are bioluminescent and have evolved ocular structures designed to detect faint light patterns in the deep ocean produced by other bioluminescent sharks that live at depths from 600 to 3,000 feet in the mesopelagic zone where very little sunlight reaches. These eyes as expected, have visual adaptations optimized for …
Louisville, Kentucky 2014
Crazy Circle Illusion
This video by brusspup on Youtube shows a series of moving white circles that travel in straight lines… the trick is the illusion of circular motion through relative timing of the linear motion. Well done. See Brusspup’s Youtube channel for additional, really spectacular illusions and scientific visualizations.
ARVO 2014
Blind Kenyan Runner Has Far-Reaching Vision
NPR has a wonderful story of childhood friends, Henry Wanyoike and Joseph Kibunja who started running together as children 30 years ago and are still running in competition today. That is a remarkable story enough, but even more compelling is that Wanyoike is blind from a stroke that cost him his sight and Kibunja is …
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Moving Jumping Spider Retinas
I’ve talked about jumping spiders before here as they are an amazing animal with very well developed vision. However, their retinas and visual pathways are very different from the vertebrate retinas in that they use image defocusing for depth perception rather than parallax like humans and other vertebrates do. Figuring out spider vision has been a …
July 12, 2014 Supermoon
Now Available in Trichromatic Color! on Knowing Neurons
There is a short but fun post over on Knowing Neurons that looks to be part of a series on color and how color is perceived. Its got some great visuals by the guest author Raz and I can’t wait to see what she has to say about oppositional antagonism.