Additional info. for anyone interested. As a hedge against not getting my new lenses/mask back from PDM in San Diego, I sent an identical new Scubapro Clear VU 4 mask to Leonard Maggiore in Long Beach, NY early last week. He's an optician who "invented" scuba mask prescription lenses many years ago and is still in business. I talked with him by phone and read my prescription to him to be sure he could do it and return the mask in time to make a dive trip the first week of April. I received the mask back today and the lenses are great. Less than 2 weeks turnaround from the day I sent it - which he says is normal time. (super!!). Total cost was about 20% less
than PDM (same bifocal prescription) and included return priority shipping. Workmanship on the lenses is about the same - very good - with the bifocal viewing a bit restricted to a narrow angle like the lenses done by PDM. I think the mask shape plays a big role in that now having done two identical masks by difference services.
Bottom line in all this is I now have 2 new masks with identical prescriptions. One will now be a backup. I am 60, so my prescription will change over time. But this is he first correction in three years, and only a slight one. So hopefully, I'll get my money's worth having both masks. Beats not having any at all!
Mr. Maggiore has a web site at www.rxsportoptics.com
. I'd highly recommend his service. And frankly, my experience with PDM may have been just a fluke. I was happy with their service and lenses three years ago and that's why I didn't hesitate to use them again. But it's nice to know alternatives - with great products and service - are also available.
I hope this helps fellow divers with similar prescription lens needs.