Influences of 27-Gauge Vitrectomy on Corneal Topographic Conditions

Table 2

The corneal topographic parameters in epiretinal membrane (ERM) and macular hole (MH) and proliferative diabetic retinopathy (PDR) group. In all groups, the 4 parameters remained stable up to 3 months after the surgery.

	ERM group ()			MH group ()			PDR group ()
	Preoperative	Postoperative 1M	Postoperative 3M	Preoperative	Postoperative 1M	Postoperative 3M	Preoperative	Postoperative 1M	Postoperative 3M
Average corneal power (D)	44.5 ± 1.09	44.5 ± 1.07^†	44.6 ± 1.04^†	44.8 ± 1.41	44.9 ± 1.28^†	45.0 ± 1.36^†	44.4 ± 1.58	44.6 ± 1.53^†	44.6 ± 1.36^†
Regular astigmatism (D)	−1.18 ± 0.56	−1.13 ± 0.58^†	−1.19 ± 0.53^†	−1.26 ± 0.79	−1.07 ± 0.72^†	−1.07 ± 0.60^†	−1.30 ± 0.50	−1.01 ± 0.54^†	−1.12 ± 0.55^†
Spherical aberration (μm)	0.25 ± 0.07	0.26 ± 0.04^†	0.26 ± 0.05^†	0.27 ± 0.10	0.27 ± 0.09^†	0.27 ± 0.09^†	0.30 ± 0.08	0.30 ± 0.08^†	0.27 ± 0.08^†
Higher-order aberration (μm)	0.20 ± 0.09	0.17 ± 0.06^†	0.17 ± 0.06^†	0.17 ± 0.08	0.17 ± 0.05^†	0.18 ± 0.08^†	0.21 ± 0.07	0.29 ± 0.14^†	0.22 ± 0.06^†

M = month; D = diopter; ^†NS versus preoperative.