Is it safe to swim with designer sunglasses will the salt water damage them?

It is probably fine if you rinse them soon afrer getting them wet. If you don't the salt might leave a scum on them.

02/06/2014

answer: salt water will ruin sunglasses/eyeglasses finish overtime & the tint/coating on the lens will wear off faster....

if you have to wear sunglasses in the water (pool/beach), we usually recommend our client purchase DEEP eyewear brand sunglasses, the lens are polycarbonate (like Oakley) & it's distortion free, it's uv protection rated @ catagory 3, it's rx-able if you need prescriptions. and DEEP eywear was made for that sole purpose, an optical quality sunglasses to wear in the water that's cheap to replace ($19.99 a pair)