Glasses can help you see far away or read up close, but computers fall somewhere in between, so your glasses may not be working for you like they should when you spend a lot of time in front of a computer screen.
That was the focus of a city vision expo in New York City this past weekend where optometrists introduced new screening tests specifically for computer vision syndrome where people think they can see the screen clearly but they can't. They say that explains why computer users often end up with headaches at the end of the day.
"It was sort of a more stressful environment because the more I would have to look at the computer and do things on the computer, as the day wore on, the harder it got for me to sort of focus and concentrate," said Hank Bullock, an attorney.
"Most people read at approximately 16 inches from the plane of the eye and people who work at computers work at anywhere from 23 to 30 inches, and the eyes focus and work differently at differently distances," explains Stephen Rozenberg.
You may think you don't need glasses, but if you're getting headaches a lot at the end of the day after using computers, you may have computer vision syndrome and you might find that a visit to the eye doctor could be just what you need to clear your vision and relieve your headaches.