| G I | G II | G III | G IV | p-value |
Duration of akinesia for eyelid and eye | 2.28 ± 0.49 | 2.43 ± 0.50 | 4.62 ± 0.62 | 3.73 ± 0.64 | 0.001* |
Duration of anesthesia | 2.92 ± 0.66 | 2.63 ± 0.60 | 5.03 ± 0.89 | 3.93 ± 0.69 | 0.001* |