[Retracted] Meta-Analysis of Long-Term Efficacy of Proliferative Diabetic Retinopathy Based on Intelligent Medical Treatment

Table 2

Influence of preoperative diabetic course on the postoperative visual acuity improvement rate.

	Vision improvement	No improvement in vision	In total
<5 years	9(81.8)	2(18.2)	11(100.0)
6∼11 years	11(61.1)	7(38.9)	18(100.0)
>11 years	22(68.8)	10(31.3)	32(100.0)
In total	42(68.9)	19(31.1)	61(100.0)