The maximal absolute drop in corneal sensitivity as measured by pressure thresholds was greatest for diclofenac -LSB- @ mm ( @ % confidence intervals -LCB- CI -RCB- , @-@ @ ) -RSB- , followed by ketorolac -LSB- @ mm ( @ % CI , @-@ @ ) -RSB- , bromfenac -LSB- @ mm ( @-@ @ ) -RSB- , and nepafenac -LSB- @ mm ( @ % CI , @-@ @ ) -RSB- .