Wearing glasses all of the time has no permanent effect on one’s eyes. Specifically, wearing glasses does not make one more dependent on glasses, nor does it increase or decrease the chance that one’s prescription may change over time—either for distance vision, reading vision, or intermediate distances, such as viewing a computer monitor on a desk.
Of course, one should wear glasses if required to correct vision for driving, and should wear glasses to correct vision, as needed, for other daily tasks. One should not be concerned that wearing glasses when needed for reading will increase the need for reading glasses or increase the power needed for reading glasses. Typically, as one gets to one’s thirties, forties, or fifties, reading glasses are needed as one’s own eye mechanisms lose the ability to focus from distance to near.
However, the fact that stronger and stronger reading glasses are needed until a point of stability is reached, again typically in one’s fifties, is not because one started using reading glasses, but because the focusing mechanism continues to weaken over a decade or two. Fortunately, this weakening should be correctable with reading glasses alone, and if not, an appointment with an eye care provider who can explain the lack of improvement is warranted.