Table 3. Comparison of intraoperative parameters between groups.

	Laser group (n=3289)					Manual group (n=2130)
	Subgroup A (n=250)	Subgroup B (n=250)	Subgroup C (n=250)	Subgroup D (n=2539)	Total laser group (n=3289)
Mean ultrasonic power (%) ± SD	15.55±6.84***	12.02±5.71	11.51±5.44	11.74±5.74	12.03±5.89###	16.17±6.13
Mean APT (s)±SD	42.88±26.82***	35.81±23.03	32.99±20.96	34.24±21.88	34.92±22.43###	45.62±26.62
Mean EPT (s)±SD	7.20±5.49***	4.74±3.67	4.33±3.21	4.45±3.41	4.69±3.69###	8.07±6.53

***p<0.001, versus subgroup D.

###p<0.001, versus manual group.

APTabsolute phacoemulsification timeEPTeffective phacoemulsification time