Active Pedicle Epithelial Flap Transposition Combined with Amniotic Membrane Transplantation for Treatment of Nonhealing Corneal Ulcers

Table 2

The difference in uncorrected visual acuity (log MAR) before and after surgery.

Difference of UCVA
Mean	SD			value	95% CI
0.88	0.60	11	4.91	0.001	0.48–1.28

UCVA: uncorrected visual acuity; SD: standard deviation; : number of eyes; CI: confidence interval.
Paired -test.