This one I DID photoshop a bit on the eyes. I do actually wear white mesh contacts though so editing it is easier and I still have white eyes on photos I don't edit (like selfies and candids and stuff).
I highly suggest not wearing it "just for the lulz". It's rather annoying and it covers your pupil so it's hard to see out of. Also, most places are rather sketchy when it comes to this kind of contact. These are from honeycolour and are prescription. If they don't come in prescription (even if you don't need it) you shouldn't trust it.
You'll constantly have a white veil over your eyes and you shouldn't wear it for more than 6hours and you can't drive cars or anything like that.