I HAVE A SOLUTION:

Put them in the door in the front section. Don't put anything else in there and your glasses will fit perfectly and won't get scratched. You could keep them in the case, or out.

Or

Get your windows tinted dark enough to not need glasses. (Legal limit)

__________________
2011 ///X5 M (On Order)

2009 X5 4.8 M Sport Space Gray/Black Fully Loaded

2007 GMC Yukon XL Denali Loaded and Customised