The benefits of physical activity are varied, with exercise enthusiasts and researchers alike extolling its virtues for a number of indices of physical and mental well-being. As your eyes and brain both play a role in determining how well you see,...
Some symptoms, such as blurred vision, can indicate a constellation of potential eye disorders. For instance, blurry vision might indicate astigmatism, farsightedness, nearsightedness, cataracts or other less common and potentially more dangerous...
Agility, or the ability to quickly and safely react to stimuli, is crucial to athleticism and overall functionality. Dr. Barry Seiller of the Visual Fitness Institute believes in a direct correlation between visual acuity and agile performance....
As you age you are likely to lose a large amount of sensory integrity. Your hearing declines, visual acuity decreases and our mental skills slow down as well. We become slower with our motor responses and our fine motor skills decline. While...
A clouding of the natural lens of the eye is called a cataract. There are three types of age-related cataracts---nuclear, cortical and posterior subcapsular---that can develop as people get older, according to The Eye Digest. Each type of cataract...
There are a number of different types of optic nerve atrophy, so presentation can vary from case to case. In general, patients experience abnormal color vision and a decrease in visual acuity. Optic nerve atrophy can occur precipitously or...
Superior jumping requires athletic ability, training and years of practice. Sometimes, like in the case of athletic testing, you need immediate improvement. Like with any other athletic skill, there are techniques to jumping, and if used...
The Snellen eye test, designed by Hermann Snellen in the 1860s, is one of the most familiar sights at any eye doctor's office. Comprising 11 rows of letters or symbols that become progressively smaller, the Snellen eye test measures visual acuity,...
Vision-impaired individuals range from having complete blindness to lowered levels of visual acuity. Table tennis balls for the vision-impaired allow players of all levels access to physical activity previously inaccessible. Balls can be used...
Eye problems in toddlers can sometimes go undetected, particularly since their functional visual acuity is not tested through reading or schoolwork. In addition, your toddler's limited communication skills might prevent her from telling you...
Astaxanthin is classified as a carotenoid. Carotenoids are yellow and red pigments that are commonly found in plants, algae and bacteria. Dietary intake of astaxanthin can provide your body with antioxidant benefits. You may increase your daily...
People who are overweight are more likely to become depressed, according to research reported in Archives of General Psychiatry. Likewise, depressed people are at greater risk to gain weight. Many who are depressed become inactive and immobile....
As a byproduct of the aging process, focus and memory have a natural tendency to decline, which alter a person's ability to perform even the simplest cognitive tasks, such as reading the newspaper and remembering to pay the electric bill. Although...
Ideally, when two teams compete, both will be at their best and they will put on a show for themselves and their fans. However, players can be filled with anxiety before and during their performance. A hitter might be overwhelmed when facing a...
Having the proper swing in baseball is essential to hitting the ball consistently. One of the factors that hitters must address is the stride they take at the plate before hitting the baseball. Hitting coaches often teach hitters to take a short...
The sensory process is a combination of your body's physical or neurological response to stimuli and your mind's reaction to it, according to the University of Kansas Medical Center. Similar to the way your computer works, programs are loaded onto...
The eye is the lens of a complex visual system that requires various nutrients to function properly. Diseases of the eye, such as macular degeneration, glaucoma, cataracts and infections, can result from inadequate nutrition, although genetic and...
Laser golf guides for putters help with one of the most important aspects of golf--putting. With a laser guide, a grid system and laser pointer are used to help in the aim of the golfer's putting stroke. Whether you are putting from 3 feet away or...
Losing an eye is a traumatic event. As challenging as the loss may seem, for the most part your life can proceed normally. Artificial eyes are virtually impossible to detect, so don't concern yourself too deeply about the cosmetic effects of the...
Ingesting caffeine can stimulate your central nervous system, giving you a mood boost and increased mental acuity. It is classified as a stimulant, the only stimulant classified as safe and effective by the U.S. Food and Drug Administration to be...
The old adage that "fish is brain food" may have more truth to it than originally believed. In an article in the New York Times, writer Anahad O'Connor states that while the origin of the "old wives tale" regarding eating fish and brain acuity...
Genes are the portion of DNA that determine traits such as eye color or height. Genetic disorders may run in families. A child may inherit a specific eye disease such as Stargardt's disease or a complex developmental disorder such as Turner's...
Fish oil contains essential fatty acids that provide numerous health benefits. The active ingredients in fish oil are eicosapentaenoic acid, or EPA, and docosahexaenoic acid, or DHA. These omega-3 fatty acids perform important functions in the...
Your ophthalmologist or examining doctor may test your hearing, reflexes, visual acuity and other skills to determine whether or not you may have a brain tumor. Visual acuity tests can help determine the size and depth of the tumor by indirect...
Keratoconus is a rare vision disorder that affects the shape of the eye. As of early 2011, the cause is unknown. At its worst, the condition causes the cornea to bulge, thin and shape-shift images into barely recognizable blobs. Remedies include...
Optic neuropathy, or optic neuritis, is damage of the bundle of nerves in the eye that can be caused by inflammation, increased optical pressure, or insufficient blood supply. Symptoms may vary based upon the cause of the disease. A proper survey...
When a middle-aged or elderly person develops painless loss of vision in one eye, one of the possible diagnoses is anterior ischemic optic neuropathy. This condition is also known as an eye stroke. For these patients, the visual field is also...
Macular degeneration is a disease that can cause severe loss of central vision. The macula, located in the center of the retina, is the light-sensitive part of the eye that sends nerve signals to the brain. According to the National Eye...
If you have a child that cannot see things at a distance but not near to his or her face, she is far-sighted. If your child cannot see signs on the road while sitting in the car, he or she is near-sighted. Always have a licensed opthomalogist...
