This guy does not seem to know the diference between pseudomyopia and simple myopia. It is OK that you don't know what you are talking about. But please don't pretend to be an expert and mislead other people. Next time before you speak, read the following websites first. It will take only 10 minutes.

1. http://en.wikipedia.org/wiki/Myopia.

"Simple myopia is more common than other types of myopia and is characterized by an eye that is too long for its optical power (which is determined by the cornea and crystalline lens) or optically too powerful for its axial length.[7] Both genetic and environmental factors, PARTICULARLY SIGNIFICANT AMOUNT OF NEAR WORK, are thought to contribute to the development of simple myopia.[7]"

2. http://www.myopia.org/

"The excessive amount of reading and other close work that we do in our modern society is the REAL cause of acquired myopia."