For the Todd and the group -- why wearing the plus is both justified by science and necessary,
(Scientific chart by Francis Young and Don Rehm.)
I am often asked to PROVE the wisdom and necessity of wearing the plus for prevention.
I am told that while a minus will CAN CAUSE MYOPIA, the plus has ‘NO PREVENTIVE EFFECT -- EVER".
Here is the data itself.
I know you can’t get a child to wear a plus “correctly”, so the kids are forced to wear a plus, by putting a minus and plus together in a bifocal. There is no other way to do this.
This data is over a period of five years. These results are highly significant. They show that the plus group – DID NOT GO DOWN. The minus went down at a rate of 0.7 diopters per year for five years.
This means that after five years, the child with a single-minus was a -0.7 x 5 = -3.5 diopter myope, while the kids with the plus (granted with a minus on top) stayed where they were, at –1/2 diopters, or about 20/30 if checked with your own minus lens.
I know that people will “object” to teaching the child to always wear a plus when they sit down to read – but there is truly no other choice, but neglect and its proven consequences for the child.
This is why personally wearing a minus, and checking your own Snellen in very wise. http://www.myopia.org/bifocaltable4.htm
This data is ignored by the “conventional” OD, who says that “plus studies don’t mean anything”. In science they do – in medicine, seemingly SCIENCE HAS NO MEANING.
Remember, these kids could not be taught how to use a plus BY ITSELF!
In my judgment, if a person is at –1/2 to –3/4 diopters (threshold) and teaches himself to wear the plus for all close work, and would check his own refractive state with his own test lens, he would measure a change in status in the positive direction, and begin to pass the 20/25 line in from six to nine months.
This is what, in your wisdom, you could do.
This shows the consequences for children – if they don’t do it.
When are we ever going to learn that science is “different” than medicine?
For the wise and motivated.