A Neuroscience Experiment You Can Perform On Yourself With Just A Mirror

There are lots of DIY scientific experiments you can put to the test, without needing so much as a lab protocol. Not all of them are just kitchen chemistry, though. In fact, here’s a strange experiment a neuroscientist gave us to try out right now, on yourself.

Source: A Neuroscience Experiment You Can Perform On Yourself With Just A Mirror

What if you have heterochromia iridum?

Sight is pretty interesting, but we understand very little of it sadly.  There’s an interesting theory about nearsightedness too…

This Scientist Put Cocaine In Her Eyes To Combat Drug Dealers

It was early 20th century Chicago, and people were offering kids “happy dust.” Police knew that happy dust was cocaine, but they didn’t know how to prove it — until one scientist came up with a extremely unusual way to convince a jury.

Source: This Scientist Put Cocaine In Her Eyes To Combat Drug Dealers



How Viruses Hide Inside Your Eyeballs, Even When You’re No Longer Sick

Last week brought the horrifying news that the Ebola virus can live in the eyeballs of survivors, even after it’s been eliminated from the rest of the body. It shouldn’t have been a surprise, though. Viruses have always hidden in parts of our bodies you’d never expect. In fact, we’re all walking virus reservoirs.

Source: How Viruses Hide Inside Your Eyeballs, Even When You’re No Longer Sick

There are also shingles vaccines you can get when you’re older, so please get those, folks. Shingles can be really bad — it can even give you temporary blindness.

I had a co-worker come down with shingles – I’d never heard of it before that, but my boss had.  My boss was certain the co-worker would not come back and they were ultimately correct.

Why Are You Nearsighted? Here’s An Explanation You May Not Have Heard.

The southern city of Guangzhou has long held the largest eye hospital in China. But about five years ago, it became clear that the Zhongshan Ophthalmic Center needed to expand.

More and more children were arriving with the blurry distance vision caused by myopia, and with so many needing eye tests and glasses, the hospital was bursting at the seams. So the centre began adding new testing rooms — and to make space, it relocated some of its doctors and researchers to a local shopping mall. Now during the summer and winter school holidays, when most diagnoses are made, “thousands and thousands of children” pour in every day, says ophthalmologist Nathan Congdon, who was one of those uprooted. “You literally can’t walk through the halls because of all the children.”

East Asia has been gripped by an unprecedented rise in myopia, also known as short-sightedness. Sixty years ago, 10–20% of the Chinese population was short-sighted. Today, up to 90% of teenagers and young adults are. In Seoul, a whopping 96.5% of 19-year-old men are short-sighted.

Source: The myopia boom

This isn’t the first I’d heard about the hypothesis – the first time indicated that being outdoors was a preventative measure.  But only if the horizon was a significant distance away and could be seen; according to them, it was all about spending time focusing on objects a great distance away as well as closer objects. IE: being outdoors in a dense urban environment where you were closely surrounded by buildings that blocked far distance views didn’t help.  To put it another way, how many farmers do you know who are near-sighted?

The article/hypothesis picks on books, but tablets/etc are no better.  Maybe my folks were right about sitting too close to the TV?  Nah… 😛

A Real Tear-Jerker: Device to Alleviate Dry Eye

Michael Ackermann, PhD, knows how to make you cry.

But this is a good thing for the more than 20 million Americans who suffer from a painful condition in which the lacrimal glands don’t create enough tears to lubricate the surface of the eye.

…With every blink, healthy eyes are lubricated with tears — a mixture of oils, water, proteins and mucus. This fluid helps protect and moisturize the eyes, and the thin film that it creates is necessary for clear vision. Dry eyes become vulnerable to painful abrasions of the cornea, which can distort vision.

Source: A real tear-jerker: Team creates device to alleviate dry eye

The implant doesn’t actually provide a permanent fix to the patient’s condition – it’s on-demand, with the user’s actual tears.  It’s controlled remotely, so all that’s needed is a push of a button.  It’s already in clinical trials.

…or you could chop onions… 😉