It turns out I may need varifocals.
Specsavers quoted 195 for the best varifocals lenses plus the frames prices, then plus 80 for making the lense thinner/lighter.
So maybe 195 + 149 + 80 = 424
But a second set would be just 80 for the thinning.
The deduct the 84 PRSI.
So 420 for two pairs.
I didn't buy yet.
I have been wearing varifocals for years and would always go to Specsavers. I usually include the coating also to prevent scratching and glare on the lenses. Its another €45 per pair but I feel it is worth it. I get an allowance from my health insurers so this helps with the cost along with my PRSI allowance.
Because varifocals are extremely hard to get just right I would not opt for the online option. Recently I had a problem with the reading section of the lense and Specsavers checked them out and agreed to replace both sets of lenses free of charge. I find their service to be very good.
I also have started in the last couple of years getting their additional which I think is either €15 or €20 extra because it can spot problems early. Some relatives have had eye problems and it restricts their enjoyment of life so much that I don't want to take any risks if I can help it at all. Like any aspect of health its only when its damaged that you realise how important it is.
I know this is all adding to the cost but they give you a gold voucher when you make your initial purchase and I think you can use it for up to 6 months to get 50% off possibly sunglasses. The varifocal sunglasses are great especially when driving.
You could also just have a tint added to your second pair of glasses to save on costs.
When you mention getting the lenses made lighter it most likely means that you rely on your glasses a lot so it is worthwhile IMHO to see it as an investment rather than expenditure. Something that you wear all the time and if carefully looked after you should get 2 years service from them.