I work for an eyewear company that designs/distributes opthalmic frames and sunglasses. Everyone in my office goes to Dr. Blaze/Coast Optometry in H.B. I'm in Irvine as well and have visited several of our local accounts but Dr. Blaze and his staff are the best. Worth the drive IMO.
Re: Optometrist - NBR
Not in Irvine but they are pretty good.
https://oldnewporteye.com/