Fielders watch the spin of the ball and track its trajectory in the sunlight, twilight or stadium lights. Hitters zero in on a three-inch-wide white ball and discern the spin of its red laces in fractions of a second. While few major league teams offer extensive vision training, the Nationals are hoping to further incorporate it. Players such as Bryce Harper, Steve Lombardozzi and Brown swear by it. This season, the players will have an extra training room at Nationals Park where they can have easy access to the equipment and integrate it into their daily workouts. By this time next season, the Nationals hope to have all minor league players in Class A and Class AA under vision-training programs.
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Dry eyes and technology: What you need to know to protect your vision
Christopher Starr, an associate professor of ophthalmology at Weill Cornell Medical College. He explained on “CBS This Morning,” “Normally, we blink about 20 times per minute. It can drop to eight or 10 times a minute. And when you’re not blinking, the tears that are on your ocular surface just evaporate. You’re not distributing new, healthy, clean tears across the ocular surface.” Another thing that can contribute to the dry-eye feeling is the lack of oil being distributed to the eye via your eyelid. “When we blink, we push out a little bit of oil,” Starr said.
For the original version including any supplementary images or video, visit http://www.cbsnews.com/8301-505269_162-57593046/dry-eyes-and-technology-what-you-need-to-know-to-protect-your-vision/
Could Google Glass Hurt Your Eyes? A Harvard Vision Scientist And Project Glass Advisor Responds
Image credit: AFP/Getty Images via @daylife) Computer eyestrain is a common problem affecting between 64 percent to 90 percent of office workers. Its caused by spending too much time staring at a computer monitor and is aggravated by factors like poor lighting, poor posture and incorrect prescriptions. Dubbed computer vision syndrome, or CVS , symptoms include redness, burning, irritation and blurred vision. If merely looking in front of you at a regular-sized computer monitor can cause discomfort, what about repeatedly glancing up at a tiny display? Sina Fateh, an ophthalmologist and entrepreneur who has filed at least thirty patents related to heads-up displays, says there is reason to be concerned. In the same way that we can get fatigue in our hands, we can get fatigue in our eyes, Fateh said. In addition to fatigue, Fateh said products like Google Glass also carry a risk of visual confusion.
For the original version including any supplementary images or video, visit http://www.forbes.com/sites/eliseackerman/2013/03/04/could-google-glass-hurt-your-eyes-a-harvard-vision-scientist-and-project-glass-advisor-responds/