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Video shows large shark head-butt a diver
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Simply being in the water near sharks is enough to make most people feel uncomfortable. But how about having a 10-foot shark ram right into your face? - photo by Grant Olsen
Grant Olsen
KSL.com
Published: Jul 23, 2016, 9:00 AM
THE BAHAMAS Simply being in the water near sharks is enough to make most people feel uncomfortable. But how about having a 10-foot shark ram right into your face?

A stunning video from the Bahamas shows just such an event. According to a report from Aol News, the incident occurred as professional diver Michael Dornellas was diving off Tiger Beach in the Bahamas.

As Dornellas filmed underwater, a large shark swam directly at him. The brutal impact broke his mask and left a contusion on his fact. A friend was accompanying Dornellas on the dive and captured footage of the bizarre impact.

Interestingly enough, Dornellas had frequented that area and had seen the shark previously. And there may have been a simple explanation for the collisionthe shark was allegedly blind in one eye.

"She wasn't trying to bite me or be aggressive, Dornellas said. After the collision, she took off I think I scared her really badly, so I felt bad."

Like any professional, Dornellas refused to let a shark-punch to the face ruin his day. After swimming to the surface and getting a new mask, he returned to the water and continued a day of diving.

This actually wasnt Dornellas first newsworthy shark encounter. Earlier this year, he encountered a shark off the coast of Florida that had a hook lodged in its mouth. Concerned for the health of the shark, he decided to remove the hook.

To accomplish this dangerous feat, he turned the shark upside down, which temporarily put it in a trance-like state called tonic immobility. A diving companion filmed the action and the video attracted attention worldwide.
Its toxic: New study says blue light from tech devices can speed up blindness
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A new study from the University of Toledo found that blue light from digital devices can transform molecules in your eyes retina into cell killers. - photo by Herb Scribner
Herb Scribner
Deseret News
Published: Aug 13, 2018, 1:39 PM
It turns out checking Twitter or Facebook before bed is bad for your health.

A new study from the University of Toledo found that blue light from digital devices can transform molecules in your eyes retina into cell killers.

That process can lead to age-related macular degeneration, which is a leading cause of blindness in the United States, according to the researchs extract.

Blue light is a common issue for many modern Americans. Blue light is emitted from screens, most notably at night, causing sleep loss, eye strain and a number of other issues.

Dr. Ajith Karunarathne, assistant professor in the UT Department of Chemistry and Biochemistry, said our constant exposure to blue light cant be blocked by the lens or cornea.

"It's no secret that blue light harms our vision by damaging the eye's retina. Our experiments explain how this happens, and we hope this leads to therapies that slow macular degeneration, such as a new kind of eye drop, he said.

Macular degeneration is an incurable eye disease that often affects those in their 50s or 60s. It occurs after the death of photoreceptor cells in the retina. Those cells need retinal to sense light and help signal the brain.

The research team found blue light exposure created poisonous chemical molecules that killed photoreceptor cells

"It's toxic. If you shine blue light on retinal, the retinal kills photoreceptor cells as the signaling molecule on the membrane dissolves," said Kasun Ratnayake, a Ph.D. student researcher working in Karunarathne's cellular photo chemistry group. "Photoreceptor cells do not regenerate in the eye. When they're dead, they're dead for good."

However, the researchers found a molecule called alpha-tocopherol, which comes from Vitamin E, can help prevent cell death, according to Futurism.

The researchers plan to review how light from TVs, cellphones and tablet screens affect the eyes as well.

"If you look at the amount of light coming out of your cellphone, it's not great but it seems tolerable," said Dr. John Payton, visiting assistant professor in the UT Department of Chemistry and Biochemistry. "Some cellphone companies are adding blue-light filters to the screens, and I think that is a good idea."

Indeed, Apple released a Night Shift mode two years ago to help quell blue lights strain on the eyes, according to The Verge. The screen will dim into a warmer, orange light that will cause less stress on the eyes.