I also go to a retinal specialist and it is covered by my BCBS plan. The plan also covers one routine eye doctor appointment per year--I use it to update my glasses prescription. While my work place offers a separate vision insurance plan, as far as I can see it only gives discounts on glasses/contacts and is thus not worth it.
As to dental, my BCBS plan also covers dental surgery, root canals, and the like. Each year I also opt for my work place's dental coverage, but it only really pays for two exam/cleanings per year as well as minor work (ie fillings) up to $1500. year. However, combining it with the BCBS plan covers a whole lot. The exception, sadly, are things like implants which are considered "cosmetic" and not likely to be covered.
As to dental, my BCBS plan also covers dental surgery, root canals, and the like. Each year I also opt for my work place's dental coverage, but it only really pays for two exam/cleanings per year as well as minor work (ie fillings) up to $1500. year. However, combining it with the BCBS plan covers a whole lot. The exception, sadly, are things like implants which are considered "cosmetic" and not likely to be covered.