Figure 8. The relationships are yielded among the ages of PCV patients, the safety, and the vision improvement after the treatments of IVR and PDT. A: A linear association can be found between LogMar visual acuity and the safety of treatment for PCV. B: There is a linear relationship between age and safety of treatment. C: Linear regression can be established between LogMar visual acuity and age. D: A 3-D mesh model (age, deterioration, and LogMar visual acuity) indicates that IVR has a greater effect on vision improvement, lower deterioration risk, and higher efficiency in all PCV patients.