Figure 3. The nucleus number beyond retinal inner limiting membrane after HE staining. A: The image of the retina in the negative control group under a microscope. The endothelial cells were neatly arranged below the inner limiting membrane. B: The image of the retina in the positive control group under microscope. The endothelial cells broke through the inner limiting membrane and grew in a disorganized manner. C: The image of the retina in the short hairpin RNA group under a microscope. The number of endothelial cells increased, but only a minority of them broke through the inner limiting membrane.