Research Article
Causes and Clinical Impact of Loss to Follow-Up in Patients with Proliferative Diabetic Retinopathy
Figure 1
Flowchart of patients with high-risk proliferative diabetic retinopathy (PDR) included in the final analysis. PDR = proliferative diabetic retinopathy, LTFU = loss to follow-up, PPV = pars plana vitrectomy.