Comparison of cognitive workload and surgical outcomes between a three-dimensional and conventional microscope macular hole surgery

Table 2 Comparison of heart rate (HR), oxygen saturation (SPO2) levels, and best-corrected visual acuity (BCVA) between the three-dimensional and conventional microscope surgical groups

			3D Surgery (N = 20)	P value Intragroup compared with baseline	CM Surgery (N = 30)	P value Intragroup compared with baseline	P value between 2 groups
Heart Rate	Baseline	Mean ± SD	67.4 ± 5.96	NA	69.4 ± 6.07	NA	0.255
	Intraoperative (ILM Peel)		79.15 ± 4.49	< 0.00001*	82.27 ± 4.81	< 0.00001*	0.024*
	Postoperative		75.45 ± 7.39	0.0005*	72.37 ± 5.06	0.281*	0.086
SPO2 (%) levels	Baseline	Mean ± SD	93.6 ± 6.1	NA	91.87 ± 5.1	NA	0.301
	Intraoperative (ILM Peel)		97.8 ± 1.1	0.0067*	97.57 ± 1.22	< 0.00001*	0.487
	Postoperative		94.1 ± 5.12	0.79	93.83 ± 5.53	0.185	0.862
BCVA	Pre-operative	Mean ± SD	1.01 ± 0.54	< 0.001*	1.35 ± 0.5	< 0.001*	0.027*
BCVA	Post-operative		0.5 ± 0.25	< 0.001*	0.54 ± 0.24	< 0.001*	0.515

3D: Three-dimensional; CM: conventional microscope; SD: Standard deviation; ILM: Internal limiting membrane; *: Significant p-value (repeated measures ANOVA test)

ISSN: 1471-2415