C, D) OCT-A imaging of LIF-treated mouse retina. Adult mice were intravitreally injected with 1 μl of LIF (50 ng, Sigma) or vehicle solution (PBS). Retinal OCT-A images were obtained 7 days after the injection and representative images are shown. Blood vessel density was determined as percentage of vessel-covered area/total area surface using ImageJ software and shown in D), n=7-8. Data information: Bars and error bars represent mean ± SEM. All experiments were carried out in three independent studies. Two-way ANOVA was used as statistical test. 