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The future Bates/Prentice study for 2013

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The future Bates/Prentice study for 2013
#1
Dear Friends,

Subject: What happened to Dr. Bates work of successful PREVENTION in 1913??

I have reviewed this issue many times. Bates' study was "killed", not because it failed, but because it was not "easy".

He came under "Legal Threat" from a parent who "complained" to the School Board that forcing the child to "Read his Snellen" would "Strain" his eyes, and would therefore "hurt" them. For this reason, the School Board -- in fear of "practicing medicine", terminated Dr. Bates 1913 study. This is an object lesson of how to "kill a study".

Here are some remarks from Dr. Bates. Let us look at the first two sentences:

1. Myopia with elongation of the eyeball is incurable.

2. It is usually acquired during school life.

This is a very strong indication that Dr. Bates believed in prevention AT THE THRESHOLD -- AS I DO.

Further, and FUTURE preventive study, should start with the same refracitve STATES, and visual acuities, i.e., refractive
STATES in the range of -1/2 to -1.5 diopters, and Snellens from 20/40 to 20/70.

However, I believe that the study should not be conducted with "kids", but rather with mature people who have the greatest PERSONAL need to clear their Snellens, and get their refractive STATE to a postive value.

People have the greatest motivation when they had total measurement control (and interest) in the study, and their own visual welfare.

Here is Bate's 1913 study. I would look at the "Method" as described by Dr. Bates.

I would be interested in your commentary as to how to make a "future" preventive effort more successful.


<!-- m --><a class="postlink" href="http://www.central-fixation.com/bates-medical-articles/myopia-prevention-teachers.php">http://www.central-fixation.com/bates-m ... achers.php</a><!-- m -->

Enjoy,

Otis



==================


Acute myopia, spasm of the accommodation, or functional myopia is an early stage of incurable myopia.

The cause of myopia is an effort to see distant objects.

Corroboration:

1. Myopic refraction has always been produced in man and the lower animal when regarding unfamiliar distant objects which required an effort.

2. Myopia was prevented in the public schools of Grand Forks, N. D., for eight years by methods which prevented an effort to see distant objects.

3. Myopia was always benefited by treatment suggested by the cause.

4. The cause suggested a method for the experimental production of myopia in rabbits, dogs, and cats.

5. Physicians, teachers, and others interested have investigated and confirmed these facts.

6. It should be emphasized that there is but one cause of myopia, an effort to see distant objects. There is no other cause.

Near use of the eyes is not a cause of myopia. By the aid of simultaneous retinoscopy, it was always demonstrated that an effort to see near objects lessened myopic refraction or produced hypermetropic refraction.

Prevention of diseases is usually suggested by the cause. When the cause is known, prevention may be successful, but when the cause is not known prevention is uncertain.

For example: Yellow fever, twenty five years ago, was not prevented by quarantine, disinfection, or other methods until the cause was discovered, the infected mosquito. By removing the cause, yellow fever has been eliminated form Havana and Panama.

Likewise, previous efforts to prevent myopia have failed because the cause was not known.

It was erroneously believed that when school children regarded, or made an effort to see, distant objects, that the eyes were at rest or that accommodation or myopic refraction did not occur.

Simultaneous retinoscopy disproved this assumption.

It has been repeatedly demonstrated with the aid of the retinoscope that all school children with normal eyes when regarding unfamiliar writing or figures on the blackboard, distant maps, diagrams, or pictures had myopic refraction.

It was quite otherwise when they regarded a familiar distant object.

The retinoscope used at the same time indicated no myopic refraction.

The Snellen test card, while being of use for testing the acuity of vision, was found also during the past ten years to be the best distant object for exercises in distant vision.

It should be memorized and thus made a familiar distant object.

After its daily use for half a minute or longer myopia was prevented; and, in addition the vision of many pupils with defective sight was improved for an unfamiliar Snellen card, for writing and figures on the blackboard, and for other distant objects.

Furthermore, near vision was benefited by the use of the Snellen card. Many pupils stated that they could study their lessons with less or no discomfort.

Myopia prevention was introduced in Public Schools Nos. 6, 183, and 186 of New York city January, 1912; later, Public Schools Nos. 46 and 43 tested the method.

THE METHOD.

A Snellen test card was placed permanently where all the pupils could see it from their seats. Daily the teachers recommended all the children to silently read the card with each eye separately, covering the other eye with the palm of the hand in such a way as to avoid pressure on the eyeball.

Records were made with the same card or with an unfamiliar card for testing the vision.

This matter is discussed below. Each line of the Snellen card is designated by a number which indicates the feet that the line should be read by the normal eye.

Records of the vision are written in the form of a fraction: The numerator of the fraction represents the distance in feet of the pupil from the card while the denominator denotes the number which designates the lowest line read. Records were usually submitted as follows:
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#2
Hi Otis!
I just wanted to know who is the Prentice that you talk often in your posts.
Have a nice day of improvement!
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