There is a common misconception that correcting your vision makes it worse. There is absolutely no evidence to support this. Anytime you use any form of vision correction, whether it be contact lenses, eyeglasses, or even a simple hand held magnifying glass all you are doing is using a device that bends light to focus in a different manner. In the case of eyeglasses or contacts, you are bending light to focus in a specific manner on your retina (the back of your eye). If you are not wearing correction, yet you require one then the light is not focusing in the correct manner and you simply see things blurry.
The phenomenon that makes people think their eyes get worse if they correct their vision is because eyes are ever changing. For example, you may start to need glasses with a minor prescription, say a -1.00, as a young teen. So you go get glasses or contacts. In a year all of a sudden that correction changes to a -1.50 or -2.00. This was not a result of wearing vision correction, this is the normal progression of myopia. The same goes for the need of reading glasses as we reach 40. Around 40 a +1.00 reader works great. In a few years you might need a +1.50 because of the natural progression of presbyopia.
You can induce or progress myopia by spending too much time focusing on close work, so pull those iphones a little further back and enjoy the scenery of the landscape. When you focus up close, your eyes are working to focus. Give them an occasional break look out towards the horizen.
