Table 1.

Baseline characteristics in the enrolled patients

	Non-pretreatment group (n = 52 eyes)	Pretreatment group (n = 53 eyes)	P value
Age	67.7 ± 12.8	67.5 ± 10.8	0.924
Sex	M/F: 20/32	M/F: 18/35	0.687
Nuclear sclerosis grading	2.3 ± 0.9	2.5 ± 0.8	0.197
AL (mm)	23.74 ± 1.40	23.70 ± 1.14	0.874
Kavg (D)	44.49 ± 1.56	44.23 ± 1.50	0.377
ACD (mm)	3.06 ± 0.45	3.11 ± 0.35	0.257
TBUT (sec)	4.9 ± 1.8	4.6 ± 0.9	0.457
OSS (point)	0.1 ± 0.4	0.2 ± 0.55	0.381
Tear secretion (mm)	9.3 ± 2.8	8.2 ± 2.7	0.130

Values are presented as mean ± standard deviation

ACD Anterior chamber depth, AL Axial length, Kavg Mean keratometry value, OSS Ocular surface staining score according to the Oxford scale, TBUT Tear film breakup time