is performed by splitting the palsied muscle and joining the midportion of this muscle to the similarly split midportions of the two adjacent rectus muscles. The dissection and splitting are performed as described for the Hummelsheim procedure, but the muscles are not disinserted. Instead, a 5-0 nonabsorbable polyester fiber suture is used to join the muscle bellies to effect a union of the two muscles just anterior to the equator, as shown in Figure 6.