Table 1

Numbers of cases, visual results, and intraoperative measurements

Trainee	Operation side	No of patients	Preoperative visual acuity*	p Value	Postoperative visual acuity*	p Value	Ultrasound time†	p Value	Mean duration of operative procedure†	p Value
*Visual acuity is calculated as a geometric mean. †Values are represented as the mean (SD) in minutes.
A	R	45	0.35		0.95		1.46 (0.52)		17.0 (6.7)
				0.175		0.081		0.8329		0.1724
	L	55	0.43		1.06		1.48 (0.56)		18.8 (5.8)

B	R	46	0.45		0.91		1.69 (0.59)		20.3 (6.0)
				0.500		0.855		0.7114		0.7005
	L	54	0.41		0.92		1.64 (0.60)		20.8 (5.3)

C	R	29	0.46		0.94		2.44 (0.62)		22.5 (3.7)
				0.100		0.960		0.5917		0.0315
	L	24	0.36		0.94		2.58 (1.06)		26.3 (6.8)

D	R	34	0.40		0.88		1.88 (0.77)		22.6 (4.0)
				0.461		0.642		0.7862		0.6673
	L	27	0.45		0.84		1.83 (0.65)		23.2 (5.5)

E	R	49	0.51		1.05		–		20.5 (4.6)
				0.492		0.764		–		0.9471
	L	47	0.48		1.07		–		20.4 (4.4)