There are many opinions on the topic of texting and driving. The goal of this blog post is to explore the effects on vision during texting.

So, from a visual perspective, why does texting make you more likely to crash? The problem lies in distraction from driving. For example, it takes a fast texter approximately 20 seconds to read and reply to a text. At 55 mph on the highway, a driver glances away from the road for approximately one-third of a mile. When the driver is focusing on their screen, this essentially gives the driver tunnel vision, causing the visual system to essentially use peripheral vision for driving. Your central vision is used to detect depth perception, detail, and colors such as red or green. So when texting, your depth perception, or 3-D vision, is altered and if cars are stopped ahead or closing in rapidly, it's not as easily detected. Colors, such as red brake lights or traffic signals, are not as easily noticed.

Next time you encounter situations with...

Despite requests that patients bring their current glasses to their office visit, many show up without them.

Sometimes it’s an oversight: “I was rushing to get here and forgot them”; “I left them in the car”; “I picked up my wife’s glasses instead of mine by mistake.” Doctors have heard them all.

Sometimes it is unavoidable: “I lost them”; “They were stolen”; “I ran them over with the car”; “I left them on the roof of the car and drove away and now they are gone.”

Frequently, however, it’s intentional. There is a perception by some people that if they don’t like their current glasses or feel like they are not working well for them that they are better off having their eye doctor start from scratch. “Why would I want the doctor to utilize a pair of glasses I’m not happy with as a basis or starting point for my next pair of glasses?”

But bringing your glasses to an appointment is important.

There are two main reasons for eye care professionals to know what your last...