Electric hose reels are not cheap either but they stopped my shoulder hurting or playing up within a few days,like I say you can’t put a price on it m8.
Have a pair of polarised Oakleys and a cheap pair next to em and try both,if you can’t see the difference you need prescription lenses lol
The Oakleys May ‘work’ better, but they don’t protect your eyes any better than a £10 pair from Tesco. They all have to meet the safety standards.
But yeah, your correct that the oakley glasses will probabaly have a better polarising effect. Although I’ve had Oakleys in the past and never noticed any difference to a working day in the sun compared to matalan cheapo ones.
Both work, and both are safe.
Bottom line is all of them will protect your eyes as good as the other. As long as you don’t by them firm the looky looky man in Benidorm or eBay
There are different filter category’s, but Tesco ones in the same filter cat as Oakleys will offer the same protection.