I'm not as short-sighted (-3 in each, plus astigmatism of around 2.5 in my left eye) but to me there is a clear difference between the lack of
focus that I have without my glasses and low
resolution videos viewed with corrected vision. There's even a clear difference between both of those and e.g. reduced visibility from fog or haze.
And this isn't just down to videos being shown on a screen - just looking at digital photos with a critical eye also shows the difference between an out-of-focus shot (which approximates myopia) and a shot that's simply taken with a low-res sensor. One of the standout points is the way that lights look - low-res but in-focus shots don't have the "bokeh" effect.
