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Snellen Eye Chart
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The highest-quality eye chart on the market!
BRAND NEW RETAIL
Features:
- Official standard-sized letters and line notations, the same used in an optometrist's office.
- The numbers are designed for testing at a 20-foot distance, but it can be used at any distance.
- Line sizes range from 20/200 to 20/10.
- Chart measures approximately 22" x 11".
- Constructed of flexible, durable plastic that will quickly uncurl on its own once hung - Unlike other charts, it will NOT be permanently curled from shipment!
- Non-reflective matte finish - Eliminates glare of light sources.
- Washable surface - Will last for years and remain as clean and readable as the day you bought it, which is important for acuity.
- Brass-lined upper hole for hanging purposes - Hang anywhere, on a pushpin, nail, or door hanger.
With your purchase you'll receive detailed instructions for several exercises that utilize the chart, based on the Bates method of natural vision improvement. They include:
- Flashing
- Using Visual Memory
- The Swing
- Shifting
- The Black Dot
- White Halos
- Daily Practices
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What the Numbers Mean
On the eye charts, you'll see lines labeled 20/100, 20/40, 20/20, etc. These numbers are also used as a measurement of visual acuity. 20/20 is considered "normal" vision. It means at 20 feet, you can read the "20" line. If you can read down to the 20/40 line only, it means at 20 feet you can only read as well as what someone with normal sight should be able to read at 40 feet, so your vision could be considered one-half of normal.
20/15 would mean that at 20 feet, you can read what someone with "normal" sight would only be expected to read at up to 15 feet. Some people have been reported as seeing 20/10 and even 20/5. 20/20, therefore, is obviously not perfect vision, but merely an estimate dating back to Dutch ophthalmologist Hermann von Snellen creating a standard for visual acuity based on his assistant's vision, which he considered pretty good.
For purposes of the Bates method, there is no need to stand at a 20 foot distance. The optimal distance may be that which at you can read the top few lines but no further, but it depends very much on individual reactions to distances and reactions to the size of letters.
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The Prevention of Myopia
Dr. William H. Bates, M.D., the founder of the Bates method of vision improvement, repeatedly recommended, particularly for children, reading an eye chart once per day, with both eyes together and then each eye separately, covering the other open eye with the cupped palm of your hand. This was a core part of his treatment in elementary schools that took place in North Dakota and New York state.
He found that when children become able to relax when looking at familiar objects, they sometimes in a short period of time become able to relax when looking at unfamiliar objects. The test chart served as a familiar object after some time and was also useful for exercises in central fixation. A test chart was placed in the front of classrooms in several schools throughout New York state, and pupils were instructed, as above, to read the smallest letters they could from their seats, at least once per day, with both eyes open and each eye separately, for prevention purposes. Those with existing myopia were encouraged to read it more frequently. Considerable results were obtained by the presence of the Snellen chart and these instructions alone.
Unforunately, due to physicians ignorant in the Bates method ordering the school boards to rid the classrooms of eye charts, they were removed. The results obtained were ignored by the pressuring physicians, who reasoned that if the conventional knowledge was that myopia prevention was impossible, then it was. Not even a highly acclaimed ophthalmologist such as Dr. Bates could make a difference in that opinion.
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| Questions? Click the Ask A Question link at the top right of the page or call (510)868-0597 |
| POLICIES
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Adamant Barbell has been in operation since 2007, and I am an established eBay Power Seller who has been selling on ebay professionally since 2005. Items are shipped from several locations across the US. I am an authorized dealer for dozens of manufacturers.
PAYMENT - Your choice of payment methods:
- Paypal
- By Phone: Visa, MC, Discover, Amex
If one of the above methods won't work for you, please contact me.
SALES TAX - 8.25% for California residents only.
SHIPPING - Shipped from the location noted at the top of the page. See the Shipping & Payments tab above for shipping methods. Other items are shipped from different warehouses across the US. Local pickup is available for many items at no charge; please inquire or see the item description above.
SHIPPING GUARANTEE - It is my responsibility to insure the shipment when appropriate and get the item to the customer undamaged. It is the customer's responsibility to provide valid contact information and ensure that the carrier is able to make the delivery.
COMBINED SHIPPING QUOTES - Please inquire! I can often give cheaper shipping rates for multiple items.
INTERNATIONAL SHIPPING - International customers welcome! Customers are responsible for any duties, tariffs, brokerage fees or taxes associated with importing into their country. This is assessed by the government of the destination country and collected on delivery and is independent of the final sale price and shipping charge. Due to U.S. regulations and insurance purposes, I can't mark items as gifts, and customs documents include an accurate description of the contents and the total value paid.
WARRANTY - Warranty is as noted in the item description. If no
manufacturer's warranty applies, a 30 Day Standard Warranty applies
for repair or replacement of merchandise that is defective or damaged during transit, at no cost to the
customer.
RETURNS - I accept returns within 30 days of purchase
for a refund of the item price (see above for warranty issues). Returned
items must be in resalable condition. Refunds given for returns due to buyer's remorse
are subject to a 15% restocking fee. Exchanges may be made for items
of equal or greater value with no restocking fee.
Original shipping charges will not be refunded. If an item is significantly
not as described, a full refund will be granted.
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