According to the random FAQ I tracked down (since official guides tend to leave out the actual amount these items boost you), the Wide Lens raises your accuracy by 10%. It's basically the hold item I always wanted.
In theory I could see how that'd be beneficial for certain attacks, but whether you'd actually notice the difference in battle I'm not sure. It's a bit of extra security, if anything (and attacks with 90%+ accuracy become 100%).
Hmm, that's not altogether true. A 10% boost means that the original accuracy is multiplied by 1.1, or 110%.
An attack with 90% accuracy will become 90 x 1.1 = 99% accurate. Near enough to 100% that you
should hardly ever notice it fail, but in practice, far enough away that you may see it miss several times during a match
.
However, a move of 95% accuracy will become 95 x 1.1 = 104.5% accurate. Quite what the game does about this, I'm not sure - does it round the accuracy to 100%, like many Pokemon moves where 100% means "it will always hit
unless your foe screws with your Accuracy stat or their Evasion stat", or does it become "never miss"? Probably something to ask about on the forums of a site where people do hacking into the code, such as Psypoke.
Also, what happens to a move that's already 100%? Does it improve to never miss? Or stay the same?
Sorry to raise more questions than I've answered
.