The predictive value of leucocyte migration inhibition test in human keratoplasty

We compared the results of penetrating keratoplasty in 18 patients whose preoperative or immediate postoperative leucocyte migration inhibition (LMI) tests were positive (greater than 20% inhibition) with those in 15 patients whose LMI tests were negative. A negative LMI test indicated a greater chance of avoiding graft rejection (P less than 0.005), and of ending up with a clear graft (P less than 0.05).