Diabetic retinopathy diabetic retinopathy 6 Eye protection 5 Ophthalmology 5 Article 4 Retina 4 human 4 Deep learning 3 Diabetic Retinopathy 3 Diagnosis 3 Medical imaging 3 controlled study 3 male 3 retina 3 Computer aided instruction 2 Convolutional neural networks 2 Grading 2 Humans 2 Image enhancement 2 Machine learning 2 Transfer learning 2 Type 2 diabetes mellitus 2 adult 2 convolutional neural network 2 female 2 insulin 2 major clinical study 2 non insulin dependent diabetes mellitus 2 proliferative diabetic retinopathy 2 retinal pigment epithelium 2