It is interesting to note how eyesight has evolved. The vision system used to be more about looking far afield for what could be hunted and eaten – and what could hunt and eat us. These days, people are spending more time with their gazes fixed on their computer or TV screens or cell phones. There are certain physical dynamics to this everyday phenomenon. There is a lens inside the eye that flexes and focuses, so when we look at things up close, that lens has to work extra hard.
Unlike some other skills we use in our everyday lives, driving relies almost exclusively on our sense of sight. We feel our feet on the ground as we move about or know we are sitting in a chair; we are fully aware of our surroundings. This sensory information lets us know where the ground or chair is. When you are driving, there is no movement of your body. It is totally about your vision and how precisely your two eyes work together. If your eyes are not aligned perfectly, you may think an object is closer or farther away....
If you are coming in to your 40s, you may be noticing that your eyesight is changing. You have to strain a little to read, holding the book or newspaper farther away, or you find you need to wear bifocals. You may even notice a bit of clouding of the lens of your eyes. What is going on? Your eyes, like many other parts of the body, are showing signs of aging. The Crystalline lens in your eye is becoming less flexible. This makes it more difficult for the lens to adjust and focus when you look from far to near.
Whether they’re swinging at a fastball, shooting free throws, lining up a putt or setting up a dig, athletes depend a great deal on their vision. They have to keep their eye on the ball in order to connect properly and hit a homer, make the basket, sink the putt or send a spike between two opponents. Many pro teams have a vision therapy program for their players. The program works on improving the athletes’ recognition and response. A sports vision therapist will show a baseball player photographers of a pitcher holding a ball...
Visual efficiency is more than 20/20 vision, and there is much more to reading problems than dyslexia or ADHD. About 85 percent of schooling is visual-
A concussion, also known as a traumatic brain injury (TBI) or an acquired brain injury, can adversely affect vision. Unfortunately, possible visual problems are often overlooked during the initial treatment of a concussion. Perhaps a coach or doctor will move a finger in front of the patient’s eyes to see how they track movement, but this cursory examination does not get to the deeper repercussions of the injury.
Vision involves over 70% of the neural pathways of the brain. Vision is more than eye sight. Vision is the only body system that continues to develop after birth. Vision involves the way the eyes and brain interact. It takes approximately three years for the eyes to learn how to work together. When they do not, it can result in the eyes turning in (esotropia) or out (exotropia), crossed eyes (strabismus) or lazy eye (amblyopia).
What happened the last time you went on the Mad Tea Party ride at DisneyWorld? Did you enjoy yourself initially, but as the ride went on, did you start to feel sick and disoriented? When you closed your eyes, however, you probably felt much better. And you were immensely glad when the ride ended and you could get your bearings again.
It may surprise you to learn eye-
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Unlike some other skills we use in our everyday lives, driving relies almost exclusively on our sense of sight. We feel our feet on the ground as we move about or know we are sitting in a chair; we are fully aware of our surroundings. This sensory information lets us know where the ground or chair is. When you are driving, there is no movement of your body. It is totally about your vision and how precisely your two eyes work together. If your eyes are not aligned perfectly, you may think an object is closer or farther away than it actually is. This is how fender benders happen – through misjudging distances. Spatial awareness is a necessary visual skill for safe driving.
One aspect of being a good driver starts with good acuity, which is the ability to see well and identify things, such as signs on the road. When we are driving, a kind of tunnel vision comes into play. Our focus is ahead, paying attention to what is coming towards us, not to the sides, and unfortunately the majority of collisions come from the side. Enhancing peripheral vision and your useful field of vision can make a difference in these types of accidents. Drivers can learn how to relax, create a more open field of view and keep their gaze constantly moving to avoid accidents.
Many drivers experience problems with glare, which occurs when polarized light reflects off a flat surface such as water or snow.
Some cars have tinted windows, but a pair of polarized sunglasses can work better. A polarized filter is comparable to a Venetian blind because it cuts out the glaring light but still lets the regular light in. This is very important for driving safety. It can mean the difference between seeing a child running out from between parked cars versus hitting your brakes too late.
Dynamic acuity is another important part of driving. Many people can see things when they are stationary, but once the object or the person starts moving, they have trouble locking in on it and maintaining clarity. Processing speed impacts dynamic acuity. You can only process one or two things at a time. Is it possible to improve your reaction time? The recognize and response mechanism can be enhanced by working with a behavioral optometrist. He or she will first help you see things more clearly by adjusting your eyeglasses. You may work with a device that helps you improve reaction time. Only a few states require drivers to take an eye-
The biggest problem on the road today is distracted driving. With so many buttons, gizmos and gadgets in our cars – not to mention phones – it is easy to take your eyes off the road “for a just a second.” The best advice is to put away the distractions and don’t pick up your phone until you arrive safely at your destination.
Dr. Graebe received both his B.S degree in Visual Science and Doctorate of Optometry from Indiana University. He is a Behavioral Optometrist and learning expert. He has been in private practice here in the Bluegrass area for the past 32 years.