[Corneal sensitivity after cataract operation by corneal incision or scleral incision]

We studied postoperative corneal sensitivity after cataract operation by scleral incision (30 eyes) or corneal incision (29 eyes). Corneal sensitivity was evaluated at 5 points of the cornea with a Cochet & Bonnet esthesiometer at 3 and 6 months after operation. Total value of corneal sensitivity decreased by 60 +/- 5.0 mg/S (mean +/- deviation) 3 months after corneal incision and by 46 +/- 4.1 mg/S after scleral incision. At 6 months after operation, the total value of corneal sensitivity was deceased by 14.0 +/- 2. 5 mg/S in corneal incision cases and by 7.9 +/- 2.0 mg/S in scleral incision cases. Corneal sensitivity after operation was decreased more by corneal incision than by scleral incision.