Correlation Analysis between Nerve Fiber Layer Thickness and Peripapillary Vessel Density and Influencing Factors of Peripapillary Vessel Density in Preclinical Diabetic Retinopathy

Table 2

Vessel density in the preclinical group and control group.

	Preclinical group	Control group	t
Whole image (%)	54.68 ± 3.10	56.54 ± 2.11	−2.51	0.015
Inside disc (%)	56.34 ± 5.47	59.63 ± 5.580	−2.20	0.03
Peripapillary (%)	56.39 ± 3.80	59.29 ± 2.60	−3.18	＜0.01

, with statistics learn meaning.