Recent eyetest suggested my laptop use has caused me to wear gles?

I had 20/20 vision but on a recent eye test i was given a very mild perscripion to sharpen up my eyes for long distance ie for driving, tv and cinema, the optrician asked if I used a computer alot which Ill admit I do spend hours on the laptop and she said this can cause this. Now I'm kicking myself that I've damaged my perfect vision .. so does a laptop cause it ? is there any way to repair it ? thanks everyone in advance x