Sure. You know our focus in terms of feet-on-the-street and whether it's independent ODs or ODs that are at the retail level is the OD wherever they are, and a lot of our super is very open as part of its strategy being -- could be branded, Biofinity or it could be private-label. So we're indifferent to what it's called but what we have learned in the past just because you send a bunch of your product whether it's private label or branded to a large retailer, if you don't work it, it's not going to work itself. You have to go to VOD whether they are under all of the retailer or not. So that has contrasted to maybe an online or some other mechanisms, we don't waste our time with that, if you don't write the prescription, you don't have our attention, and that will continue. Relative to the competitive landscape, yes, our competitors continue to be in various stages of disarray, Alcon, we know what that CEO and Chairman of Novartis basically said, they are restructuring that organization, there is disruption there, they have a tired product-line, BNL likewise is in a very disruptive environment, not to say the least, and, you know, J&J has done a pretty good job of marketing one product, Oasis, by any other name is Oasis. So it's all over, 1-day, 1-week, 2-week, 1-month called VITA [ph]. So of the three competitors, I would say J&J kind of has in fact together better than the other two but having said that they are obviously presenting some opportunities in their approach. Are they in UPP one day and then there are out of UPP the next day. UPP wholesale across all of their products and then they cased the entire thing come up with a different plan. So we we've been a pretty steady state in the way we're approaching the market. We have the product portfolio and we kind of feel good about our competitors.