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Latest Vision News

May is Healthy Vision Month

May is Healthy Vision Month

What does that mean for you? It means that now is the time to schedule a comprehensive eye  exam. 

While these are one of the exams we may often let fall by the wayside, they are extremely important to maintain our eye health. Comprehensive eye exams serve several purposes. During these exams, pupils, the circular black area in the center of the eye where light enters, are widened with eye drops or viewed without dilation through a special camera. This allows your Eye Doctor to check for vision problems and eye diseases, verify what stage of diseases your eyes may be in, and helps determine if you need glasses, contacts or other treatments. 

Comprehensive eye exams are crucial for all ages, here’s why: 

Pediatric exams test for visual acuity, lazy eye, color vision, ocular health, and more. These are extremely important to test for the school years ahead. 

For older children and teenagers, myopia (nearsightedness) is one of the biggest concerns that comprehensive eye exams detect. Myopia affects the eye’s ability to see distant images clearly. It is important to identify and treat early with glasses or contacts as children and teens begin to learn in larger spaces, play sports, and drive. 

Adult exams are recommended at least every two years, or as recommended by your eye care specialist. Exams for adults are necessary to catch eye conditions that can cause vision loss and even lead to blindness. Some of these conditions are cataracts, diabetic retinopathy, glaucoma, and age-related macular degeneration. 

There are several other conditions that comprehensive eye exams can expose that may not be found without a visit to your optometrist. 

Outside of eye exams, here are 5 ways you can help protect your vision: 

  1. Healthy eating. You know this! Healthy eating helps every part of your body. For your eyes, make sure to add dark, leafy greens and seafood that is high in omega-3 fatty acids to your plate. A great excuse to treat yourself to sushi! We’re adding a spicy sake maki roll to our cart… for delivery.
  2. Protective eyewear. Whether you’re chopping wood for the bonfire pit, mowing the lawn, painting your bedroom walls, or riding your motorcycle around town, protective eyewear is key. Blue-light protection glasses should also be considered to protect your eyes from all the time spent in front of computer screens.
  3. Sunglasses. Much like protective eyewear, sunglasses help protect your eyes from ultraviolet radiation delivered by sun. Not all sunglasses provide the same level of protection. Let us help you pick the best pair!
  4. Clean hands. Wash your hands before putting your contacts in and before taking your contacts out, simply to avoid infection.
  5. Stop smoking. Smoking is known to cause several diseases, but it can also lead to vision loss. It can increase the risk of age-related macular degeneration, cataracts, and more. Mark your calendar for your comprehensive eye exam and mark it as the day to stop smoking. 

Happy healthy vision month! Get your appointment in the books with us today. 

 

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We all remember the acronym ROYGBIV to help us remember the colors of the rainbow..........red, orange, yellow, green, blue, indigo, and violet. We are all very clear that there are seven colors in our spectrum on the rainbow, but what we may not be very clear on is the interpretation of those colors on an individual basis.

What gives us the ability to perceive color? Is it the eye or is it the brain? What if the same color looks like two different colors to two different people? Science is now explaining this common phenomena. It is caused from the brain trying to tries to determine the color in certain aspects of daylight sun and light reflecting off certain objects.

There have also been known instances when patients who receive injections in the retina of the eye for the treatment of macular degeneration, experience a spectrum of colors that is not explainable to them by the seven colors of the rainbow. There seems to be a plethora of colors they experience that have been previously undetected.

Furthermore, a color blindness factor can play a role in perceiving colors. A certain percentage of people have an inherited condition of color blindness. Three common types of color blindness include protan (red), duetan (green), and tritan (blue). Color blind individuals have different color perceptions than than a person with normal spectrum color vision.

A very notable event that highlights the difference in our perception of colors showed up when an English dress designer posted a picture online that began a craze. Some people saw it as a gold and white dress, while other people saw it as a blue and black dress. There was quite a dispute until an optometrist gave an explanation:

Color Constancy. This occurs when colors are viewed in a different light or with a shadow causing the brain to interpret it as one color when it is, in reality, another color. The color is determined by the perception of the one viewing it.

An article posted by website “WIRED.COM” explains the color constancy this way:

"The brain tries to interpolate a kind of color context for the image, and then spits out an answer for the color of the dress. When context varies, so will people’s visual perception."

More information comes from an article in USA Today:

“Color is our perception — our interpretation of the light that's in the world," says Arthur Shapiro, a professor at American University who specializes in visual perception.

"Individual wavelengths don't have color, it's how our brains interpret the wavelengths that create color," he says. In the case of the dress, some of us interpret those wavelengths to be blue and black, and others interpret the wavelengths as white and gold.

The physiological explanation can be described through the function of rods and cones.

The cones are color sensitive mainly to red, green and blue. The rods are sensitive to black and white, and in low or dim light, our rods help us see contrast. Furthermore, in bright light, our cones help us see color: the retina sends messages from rods and cones to our brain.

So instead of arguing with another over the color of a dress, argue instead over your perception of the color of the dress...after all, perception is greater than reality in some cases. Through our perceptions, we color our world into our own reality whether we are colorblind or not.

REFERENCES

www.wired.com; Adam Rogers 02/26/2015

www.usatoday.com; Lori Grisham 02/26/2015

 

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