Boxes like this all around the world collect millions of used glasses per year. Lions refurbish them and then donate them to those in need.
Local Drop locations:
 
Paul Smith Library of SYC - 80 N Constitution Ave, Shrewsbury, PA 17361
 
Saubel's Markets - 65 East Forrest Ave, Shrewsbury, PA 17361
 
Shrewsbury Post Office - 50 Constitution Ave, Shrewsbury, PA 17361
 
My Eye Doctor - 14625 Mount Airy Rd Suite 100, Shrewsbury, PA 17361
 
Walmart Vision Center - 698 Shrewsbury Commons Ave, Shrewsbury, PA 17361