I've always had my eyes tested at our local independent opticians, and this has always severed me well. I'm short sighted, -5 and -6, and started wearing varifocals a few years ago in my late 40s. I have my lenses thinned. Until varifocals came along, my optician bill was manageable! My last pair of varifocals plus simple, single vision sunglasses cost £700! Neither frame was anything special/big name/designer tie in.
3 years on, my glasses need replacing. I've noticed Asda advertise that they do complete varifocals for £150 or so.
Are these just as good as what I'd get from my local independent? Are they cheaper because the bulk buying power, or will they fall apart in 6 months? Or is this potentially a massive cost saving that I'd be daft not to take?