Table 1.

Changes in corneal thickness in all cases (mean ± SD, μm)

	Before	1 week*	1 month	3 months
Center	571.6 ± 36.1	596.2 ± 66.0*	572.5 ± 37.3	567.0 ± 38.7
		P = 0.008	P = 0.819	P = 0.228
Superior	675.1 ± 46.6	706.8 ± 69.5*	678.8 ± 48.1	668.3 ± 54.2
		P = 0.001	P = 0.444	P = 0.288
Inferior	658.6 ± 45.6	679.0 ± 66.0*	663.3 ± 45.4	662.9 ± 48.6
		P = 0.036	P = 0.432	P = 0.569
Nasal	658.7 ± 36.0	680.0 ± 61.7*	661.6 ± 42.5	654.9 ± 39.4
		P = 0.024	P = 0.595	P = 0.473
Temporal	632.5 ± 39.6	663.6 ± 64.7*	635.8 ± 36.2	628.2 ± 36.2
		P = 0.005	P = 0.621	P = 0.488

Note:

^*A significant increase compared with preoperative measurement (P < 0.05, paired-t-test test).

Abbreviations: Before, before vitrectomy; 1 week, 1 week after vitrectomy; 1 month, 1 month after vitrectomy; 3 months, 3 months after vitrectomy.