or pocket formed by the inner portion bend 82 for this embodiment of the corner fig1 illustrates the position after the ring 60 has been fully deployed the innermost bend 82 of each of the corner portions receives a portion of the inner edge of the iris the ring is sized such that it is in a slightly compressed state when deployed so that an expansion force is applied against the iris to increase the opening also it can be seen in fig1 that the bends 82 do not apply the only edge contacting portions of the ring a top obtuse bend 80 at each corner leads to the corresponding return bend 82 such return bend 82 in turn leads to a bottom obtuse bend 84 shown in broken lines the side to which a bottom obtuse bend 84 leads is inclined upward outward slightly due to the positioning of the suture on the winding fixture just as the straight sides of the previously described embodiment transition from the bottom of one corner to the top of the next and each side of the ring emerges from the pupil approximately midway between adjacent bends or corners or at least somewhat centrally between the bends thus there are eight spaced.