Snippn, He had double crossed eyes and has had two surgeries to correct same. Another surgery is necessary. His sister started wearing glasses at 3 months. She has no peripheral vision. Her lenses are like coke bottles although the doctor says that eventually, her eyes will reverse and correct themselves. I hope your DGSs will eventually find a solution to their vision problems. I know how difficult it is to see their challenges. -- Of hope, my DH had a stroke and was left with double vision. We found an opthomologist who operated on both eyes and corrected the double vision. John was an avid reader and with new lenses, he was able to read w/again with both eyes. (Coincidentally, he is the same surgeron who had operated on the GGS. We love this guy.)
The DGGS saw he dogbifocal fabric on the apron I made for him at Christmas.