Tear inflammation related indexes after cataract surgery in elderly patients with type 2 diabetes mellitus

Table 2 Comparison of matrix metalloproteinase-2 and matrix metalloproteinase-9 levels in the tears of two groups at different time points

Time	MMP-2 (ng/mL)				MMP-9 (ng/mL)
	Group A	Group B	t value	P value	Group A	Group B	t value	P value
Preoperative	11.13 ± 0.56	8.83 ± 0.88	11.65	0.000	36.07 ± 1.82	25.55 ± 1.74	13.22	0.000
1 d	10.71 ± 0.68	8.07 ± 0.68	10.54	0.000	42.90 ± 1.82	32.69 ± 2.33	10.96	0.000
3 d	13.53 ± 0.79	10.42 ± 0.96	11.06	0.000	43.37 ± 1.33	32.80 ± 1.02	18.09	0.000
1 wk	14.45 ± 0.9	10.54 ± 0.94	8.22	0.000	56.25 ± 1.96	43.02 ± 1.45	20.45	0.000
2 wk	13.17 ± 0.93	9.43 ± 0.49	12.29	0.000	72.78 ± 1.66	51.99 ± 1.71	41.48	0.000
3 wk	11.37 ± 0.40	9.15 ± 0.60	9.99	0.000	43.81 ± 2.68	32.55 ± 1.3	14.70	0.000
4 wk	8.77 ± 0.83	7.62 ± 0.84	2.63	0.017	44.41 ± 3.15	31.97 ± 1.58	13.79	0.000

MMP: Matrix metalloproteinase.