Cool Tech in Glaucoma Management

I saw at medGadget a commentary about MIT’s Technology Review coverage of a computer chip surgically implanted in the eye which continuously measures IOP.

MedGadget says:

a pressure sensor to measure glaucoma continuously, instead of once every 6 months in the ophthalmologist’s office.

I would just change that to read, “instead of once every 3-6 months at the optometrist or ophthalmologist’s office.”

But I was wondering at what point we implant these devices? Is the risk of the implant operation justified for a glaucoma suspect? If we already know the patient has glaucoma and we are managing with maximum therapy, do we need the implant? Can we even get insurance companies to come on board to pay for the chip and implant operation?