Results of Femtosecond Laser-Assisted Descemet Stripping Automated Endothelial Keratoplasty

Table 2

Statistical significance () in central corneal thickness decreases when comparing the CCT in each visit as compared to the preoperative vision, and when comparing each vision at each visit to the previous visit, except when comparing CCT 3 months postoperatively to the CCT 2 months postoperatively, there is improvement but not statistically significant.

	OCT1M—pre OCT	OCT2M—pre OCT	OCT3M—pre OCT	OCT2M—OCT1M	OCT3M—OCT2M
Z	−3.622^b	−3.621^b	−3.621^b	−3.621^b	−1.398^b
Asymp. Sig. (2-tailed)	0.0001	0.0002	0.0001	0.000	0.162

b = 1 billion.