Having repaired these once before, I wasn’t too surprised when this happened:
Evidently the “titanium” has fatigued, because the repair lasted barely nine months.
Rather than try to fix them again, I sent my new prescriptions halfway around the planet and, a bit under two weeks later, had three glasses: normal, computer, and sun. This time, I went with 38 mm tall lenses, a heavier nose bridge, and traditional aviator sunglasses.
For the record, the regular prescription was:
Tweaking that by +0.75 diopter on the sphere puts my far point focus on the monitors across the desk and backing -0.75 diopter from the adder keeps the same near-point reading correction:
They’re all no-line progressive bifocals made from 1.57 high-index plastic with anti-reflection coating, for a grand total of $135 delivered.
That being only slightly more than the estimated cost of fixing one broken Silhouette frame temple, Mary will try living in the future, too.
The Smell of Molten Projects in the Morning 
I too had “unbreakable” titanium eyeglasses which “broke”, just like yours. My last glasses also came from China.
That single-wire bridge looked like trouble, right from the start, and I wasn’t disappointed. [sigh]
The other pairs had thicker bars, rather than a wire, and are still going strong. Now I know better!