Oh boy. Go on scholar.google.com and search for "lens-induced myopia", "axial elongation eyeball", "near induced transient myopia", "pseudo myopia". How myopia happens has already been figured out, hundreds of times over, over the past 4 decades. It's in the major ophthalmology journals at least a few times a year. Researching what caused myopia, low light, just plain silly in 2015. ;-)
