miRNAs play an essential role in diagnosing and treating diabetic retinopathy, such as miR-20a-5p, miR-20a-3p, miR-20b, miR-106a-5p, miR-27a-5p, miR-27b-3p, miR-206-3p, and miR-381-3p [15] and miR-20a-5p, miR-20b-5p, miR-27a-3p, miR-27b-3p, miR-206-3p, and miR-381-3p which are related to VEGF and TGFB and expressed in hypoxia [16]. Here, VEGFA is linked to diabetic retinopathy.