“…[ 6 , 9 , 25 , 57 , 59 , 61 ] In contrast with trabeculectomy, Ex-PRESS implantation is less invasive and causes less complications, subsequent inflammation, less IOP variance and faster recovery during the early postoperative period. [ 34 – 39 , 41 , 42 , 44 , 45 , 47 , 48 , 50 – 54 ] The biomolecular findings of 1 animal study also proved the similar results, which showed lower levels of transforming growth factor β2 after Ex-PRESS implantation under a scleral flap, compared with filtering sclerostomy in rabbits. [ 63 ] In our study, only 1 patient (Patient 4) had postoperative hyphema, and the extent of hyphema was mild enough that it spontaneously resolved in 2 weeks without surgical intervention.…”