Snellen Eye Charts

Snellen Eye Charts

Snellen, Test, Chart, Diagnostic, Doctor

If you’ve ever had an eye exam done in an eye doctor’s office it’s probable that you have heard about the Snellen Eye Chart. What does the Snellen chart consist of? The Snellen chart includes 11 rows of capital letters. The very first letter on peak of the eye chart is a capital E. Additionally, there are a series of subsequent rows of capital letters that become progressively smaller from line to line. The smaller the rows of capital letters that the sharper the visual acuity. For instance, the line that states 20/20 is forth from the main point and is subsequently followed by the 20/15,20/10 and the 20/5 line. If you can read the bottom row of the smallest letters then you’ve got excellent vision.

Visual acuity is measured from a distance of 20 feet. The patient is required to stand out from a distance of about 20 feet to read the letters without the assistance of contacts or eyeglasses. If you have 20/20 vision this is considered normal eyesight. 20/20 vision means you could see clearly at a distance of 20 feet what the average person can see at that particular distance.

The Snellen eye chart has its limits due to the fact that it only measures visual acuity. Thus, it cannot detect whether you have some underlying medical problems associated with your vision condition. According to developmental optometrist Dr. Kellye Kneuppel, the Snellen chart only finds nearsightedness and misses other vision conditions like Astigmatism and farsightedness.

Furthermore, Dr. Knueppel explains that vision problems that kids experience associated with the lack of teamwork between both eyes and difficulty monitoring lines are vision problems that go unnoticed even with a Snellen eye chart test. These undetected problems can lead to academic problems and learning difficulties. Because of this, the American Academy of Ophthalmology recommends a baseline eye exam which provides a comprehensive evaluation of a patient’s eye health. Such a detailed eye exam can detect underlying issues such as Glaucoma, vision issues related to the retina, eye problems associated with Diabetes or high blood pressure to name a few. Furthermore, it can detect problems focusing when studying and vision issues associated with lack of teamwork involving both eyes.

When it comes to getting a comprehensive examination that determines the state of your general eye health a baseline eye examination is recommended. On the other hand when it comes to correcting vision conditions a reliance on glasses or contacts won’t tackle the underlying causes of your vision problems. If you’re searching for a natural solution to fix your vision problems while addressing the root causes of bad vision, then, an eye exercise program to improve your eyesight naturally is highly recommended.

This kind of program corrects or reduces vision conditions related to nearsightedness, farsightedness and astigmatism. You’ll also realize that the diligent and regular practice of these easy eye exercise techniques can offer certain fringe benefits. Ultimately, these are all skills that are essential for academic achievement and lead to an increase in your overall eye health.


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