Table 3.

Comparison of SE (D) of FSL-PK and FSL-DALK subgroups

	FSL-PK	FSL-DALKa	FSL-DALKb	P value
Preoperative	−6.45 ± 2.53	−6.36 ± 4.23	−7.05 ± 2.79	0.823
3 months	−3.29 ± 3.07	−2.84 ± 3.04	−1.90 ± 2.02	0.385
6 months	−2.62 ± 2.23	−2.95 ± 3.05	−1.98 ± 1.95	0.558
9 months	−2.59 ± 2.48	−2.89 ± 2.87	−2.10 ± 2.06	0.697
12 months	−2.64 ± 2.30	−2.38 ± 2.84	−1.96 ± 1.76	0.734

SE spherical equivalent, D diopter, FSL-PK femtosecond laser-assisted penetrating keratoplasty, FSL-DALKa femtosecond laser-assisted deep anterior lamellar keratoplasty without baring Descemet’s membrane, FSL-DALKb femtosecond laser-assisted deep anterior lamellar keratoplasty baring Descemet’s membrane with big-bubble technique