Table 1. Ophthalmoscopic features for retina disease symptoms.

Retina disease symptoms	Ophthalmoscopic features
No retinopathy Mild Moderate Severe Proliferative diabetic retinopathy	- Microaneurysms Retinal hemorrhage, Hard exudates Hemorrhage, venous beading, intraretinal microvascular anomalies Neovascularization, vitreous hemorrhage