Stereo Acuity and Summation: The Advantage of Two Eyes

minions

 

Frequently during eye exams, patients will notice they see better on the eye chart with two eyes open, and will try to sneak around the cover paddle to get to two eyes ASAP. We are well familiar with the mathematical rule, the whole is not greater than the sum of its parts, but eyes are an exception to this rule. Summation describes the brain’s ability to add the vision from each eye in order to produce better visual acuity than one eye provides alone. As a result, the exam chart may read something like this:

20/20 Right(OD), 20/20 Left(OS), 20/15 Both(OU)

Stereo acuity, or 3-D vision, is another binocular (when two eyes work together) visionprocess. Because the eyes are physically separated by space, they view object from a different angle, and the brain can then interpret depth. For example, those of you without stereo cannot appreciate 3-D puzzles and movies.

Eye conditions that can limit summation and stereo acuity include refractive error, amblyopia, monovision, esotropia, exotropia and a host of possible medical eye concerns.

We advise all minions, one and two-eyed, to have regular eye exams.

From the eye doctors, opticians and staff at Rinkov Eyecare Centers. We’ve provided comprehensive eye exams, contact lenses, eyeglasses, sunglasses and medical treatment of eye disease such as cataract treatment in Columbus, Ohio, for over 35 years. Come see an optometrist at one of our Columbus locations – Downtown, West, East, Westerville, Dublin, Bexley, Worthington and Nationwide Plaza.

Juvenile Xanthogranuloma and Eye Health

Regular eye exams can monitor ocular involvement of juvenile xanthogranuloma

Regular eye exams can monitor ocular involvement of juvenile xanthogranuloma.

Juvenile xanthogranuloma is a relatively uncommon dermatological condition that appears in early childhood. Typically, these skin legions are firm and dome-shaped. While the legions may appear red at first, they usually progress to an orange-ish brown shade later on.

While juvenile xanthogranuloma is benign, it is possible to develop the legions on or near the eye, affecting the iris, retina and eyelid. It is important that patients with this condition be monitored once every three months, up to the age of three, in order to detect any ocular involvement. In fact, most eye-related symptoms occur before patients are two-years-old.

If your child has been diagnosed with juvenile xanthogranuloma, it is important to speak with your child’s eye care professional to understand the complications this condition may cause. Ocular legions will need to be addressed if they lead to visual problems. Typically, only one eye is affected, but if left untreated, ocular juvenile xanthogranuloma can cause glaucoma, corneal blood staining, hyphema, cataract development, vascular occlusion and retinal detachment. It is possible that complications can lead to amblyopia and eventual blindness.

From the eye doctors, opticians and staff at Rinkov Eyecare Centers. We’ve provided comprehensive eye exams, contact lenses, eyeglasses, sunglasses and medical treatment of eye disease such as cataract treatment in Columbus, Ohio, for over 35 years. Come see an optometrist at one of our Columbus locations – Downtown, West, East, Westerville, Dublin, Bexley, Worthington and Nationwide Plaza. 

How to Have Healthier Eyes in 2015

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We promise this resolution is easy!

We promise this resolution is easy!

Now that the New Year is under way, many people are working on their New Year’s resolutions. You may be working on getting fit, getting organized or getting your finances in order, but there is one easy resolution you probably forgot about: taking better care of your eyes. By making a few minor changes, you will be crossing this resolution off your list in no time.

 

  1. Schedule a yearly eye exam

A yearly eye exam is the first step to better eye health and it is essential to catching any early signs of eye disease. Many feel if they are seeing well, an eye exam is not necessary. This is not true, because many eye diseases do not show symptoms until it is too late. In addition, annual eye exams can alert your doctor to changes in your overall health.

  1. Wear your sunglasses

Sunglasses are not just a fashion statement, nor are they just for people who need prescription sunglasses. Your shades help to shield your eyes from UV radiation, which can contribute to cataracts, macular degeneration, and cancers of the eye. They can also protect your eyes from particles in the air.

  1. Follow your contact lenses’ directions

For those who wear contact lenses, you can drastically improve your eye health by simply following the directions for your contact lenses. Most people wear their contact lenses longer than what is recommended by their eye doctor every day. By following your optometrist’s recommendations, you can drastically reduce discomfort and risk of infections from over-wearing your contact lenses. Many contact lens wearers fail to replace their contacts on the schedule prescribed. Wearing your contact lenses past the replacement date makes you much more vulnerable to eye infections and permanent scarring of the cornea. If you’re running low on your contacts, make sure you have a current prescription and order new ones ASAP. 

By following these three simple steps, you will be able to cross this resolution off your list. These minor changes will not only lead to healthier eyes, but a healthier you.

From the eye doctors, opticians and staff at Rinkov Eyecare Centers. We’ve provided comprehensive eye exams, contact lenses, eyeglasses, sunglasses and medical treatment of eye disease such as cataract treatment in Columbus, Ohio, for over 35 years. Come see an optometrist at one of our Columbus locations – Downtown, West, East, Westerville, Dublin, Bexley, Worthington and Nationwide Plaza. 

What is a Pinguecula?

A pinguecula is an area of degeneration of the deep conjunctival layers.  In other words, it is an area of disrupted tissue on the white part of one’s eye.  Usually located at the 3- or 9-oclock position near the cornea the tissue may appear slightly yellowed or red due to an increase of blood vessels in the area.  The tissue may be raised or flat.  Pingueculas arise from over exposure to UV light or chronic irritation of the tissue caused by dust or wind.  It is important to protect one’s eyes from such elements with sun or safety glasses depending on the environment.  If the tissue is continually subjected to irritation it can expand into the cornea and cause dryness, discomfort and eventually decreased vision.  Once this occurs surgery is often needed to remove the tissue.  It is important for people of all ages to protect their eyes from sun light and other irritants to prevent pingueculas from forming.

From the Eye Doctor, Opticians and Staff of Rinkov Eyecare Centers. Providing quality comprehensive eye exams, contact lenses, glasses, sunglasses and medical treatment of eye disease. Eye exams and eyeglasses in Columbus, Ohio for over 35 years. Come see an Optometrist at one of our Columbus Ohio locations – Downtown, West Columbus, Dublin, Westerville and Reynoldsburg. Click here for more information about eye exams in Columbus, Ohio.

CARE : 20|20 : LIFE

*this advice is general in nature and does not constitute an exam. For specific advice, see your eye doctor or healthcare professional.*

Will eating carrots really improve my vision?

Carrots contain a high level of beta carotene which the body converts to Vitamin A.  Our eyes depend on certain amounts of Vitamin A to maintain the health of the eyes surface as well as the proper function of the eyes retina.  Excessive amounts of Vitamin A will not increase the eyes function but too little Vitamin A can be detrimental to our vision.  Vitamin A deficiency is the leading cause of blindness in third world countries where malnutrition often leads to dehydrated corneas and retinal eye disease.  Proper diet can have a significant impact on our vision.  Eating a health balance of fruits, vegetables, fish, and nuts will provide the nutrients needed for our eyes to work to their best ability.

From the Optometrists, Opticians and Staff of Rinkov Eyecare Center. Providing quality comprehensive eye exams, contact lenses, glasses, sunglasses and medical treatment of eye disease. Serving Columbus, Ohio for over 30 years. Downtown Columbus, West Columbus, Dublin, Westerville and Reynoldsburg.

www.rinkoveyecare.com

Downtown – 614-224-2414 West – 614-878-7771

East – 614-861-7771 Westerville – 614-890-3577

Dublin – 614-978-9940

Diabetes and Eye Exams

It is very important for everyone to have a yearly dilated eye exam, especially if you are diabetic. Diabetes affects blood vessels throughout the body. Two of the most common parts of the body affected are the eyes and feet. Diabetes can cause bleeding and decreased oxygen supply to the retinal tissues. This can cause new blood vessels to grow into the retina, which damage the surrounding healthy tissue. If not found and treated, blindness can result. Yearly dilated eye exams can detect changes early when treatment is easier and often more successful.

From the Optometrists, Opticians and Staff of Rinkov Eyecare Center. Providing quality comprehensive eye exams, contact lenses, glasses, sunglasses and medical treatment of eye disease. Serving Columbus, Ohio for over 30 years. Downtown Columbus, West Columbus, Dublin, Westerville and Reynoldsburg.

www.rinkoveyecare.com

Downtown – 614-224-2414 West – 614-878-7771

East – 614-861-7771 Westerville – 614-890-3577

Dublin – 614-978-9940

Pterygium

A pterygium is often confused with a pinguecula. However, it is quite different as if actually invades the cornea by crossing over the limbus area. Causing scarring. It is raised and wedge shaped. Usually, a pterygium contains blood vessels. If inflamed, it is usually treated with steroid eye drops and artificial tears. If the pterygium grows too much towards the pupil, it can affect sight. At this point, a surgeon will try to redirect the path of growth to save the individual’s vision. As with a pinguecula, sunlight exposure is the cause of this.

From the Optometrists, Opticians and Staff of Rinkov Eyecare Center. Providing quality comprehensive eye exams, contact lenses, glasses, sunglasses and medical treatment of eye disease. Serving Columbus, Ohio for over 30 years. Downtown Columbus, West Columbus, Dublin, Westerville and Reynoldsburg.

www.rinkoveyecare.com

*this advice is general in nature and does not constitute an exam. For specific advice, see your eye doctor.