Proof 2 Medium and high myopia is caused by wearing the prescription glasses (minus lens) all the time. The following are the human proof of this theory. Name Age myopia onset Years past Current Prescription Use(d) glasses for Andrew C. 7 4 R -10.00/-0.25 x95 everything L -7.75/-0.50 x135 Ms. Lee 12 22 R -12.00 L -11.00 everything Annie 7 8 R -7.25/-0.75 x20 everything L -7.25/-0.75 x178 Andrew D. 10 5 R -6.50 everything L -5.75/-0.25 x180 Rose 8 4 R -5.75/-0.50 x180 everything L -6.00/-1.25 x175 Victoria 8 1 R -3.75/-0.25 x90 everything L -4.00/-0.50 x180 Brian 7 1 R -3.50/-0.75 x5 everything L -4.00/-0.75 x170 Neal 15 > 25 R -4.25 L -4.50 everything Arnold 12 1 R -3.25/-0.50 x180 everything L -3.50/-0.75 x25 Vincent 10 2 R -3.50 L -4.00 everything Christine 7 2 R -3.75/-0.75 x90 everything L -3.50/-0.75 x180 Bernice 13 28 R -7.50 L -8.00 everything Mr. Hwang 12 > 25 R -7.00 L -7.00 everything Mr. Wu 11 > 25 R -9.00 L -8.50 everything Mrs. Zhuang 12 > 35 R -10.00 L -10.00 everything Sunny 14 30 R -5.50 L -5.75 everything Myopes from all over the world prove this theory. This is just a small portion of the data we have. More proofs will be listed here. If you do your own observation/study/survey on the people around you (your relatives, friends, classmates, teachers, professors, colleagues, co-workers, patients or myopes in your office, parents of your children's classmates or friends, stranger you meet at the grocery store/ bus station/airport), you will find that those who wear their glasses all the time since childhood have medium or high myopia and those who only wear their glasses when it is necessary (for driving, classroom board, etc.) have low myopia. Again, myopes from all over the world prove this theory.