In a sense, Julie has been lucky with getting her glasses made up, as technology has managed to stay barely a step of her needs. Almost each time she gets her eyes tested, Julie is told that she may have to have corrective surgery 'next time'. Fortunately, 'next time' appears to be taking a cue from Tomorrow in this instance, since 'next time' never really manages to reappear.
You see, to get the right level of sight correction, Julie's glasses have been getting thicker and thicker.
|No, she does NOT look like that.|
Obviously, there is only so far you can thicken lenses, and the threat has always been to have the surgery, but technological advances mean that the opticians can get a decent lens from a thinner piece of material.
Without the glasses, one eye does have a tendency to pull to one side, but it's nothing major - certainly not Marty Feldman territory. Or, as Julie puts it,
...it's true, I suppose...