NEW TESTS FOR SMALL EYES!! Here the first test with 5.7 mm CANABRAVA RING! The traditional one has 6.3 mm! You don’t believe how this 0.6 mm are important in eyes with WTW smaller than 10.5 mm. In my experience, I don’t suggest the use off any Iris Expansion Ring with 6.3 mm for eyes with WTW smaller than 10.5 mm!