What are the characteristics of mild nonproliferative diabetic retinopathy?

1. Microaneurysms
2. Dot-blot hemorrhaes
3. Flame shaped hemorrhages
4. Hard exudates

What are the characteristics of moderate NPDR?

All the characteristics of mild NPDR 

1.  Cotton wool spots

2.  Venous beading and Loops

3.  Moderate Capillary Non-perfusion

What are the characteristics of severe NPDR?

Same as Mild NPDR

1.  Four quadrants of intraretinal hemorrhages

2.  OR two quadrants of venous bleeding

3.  OR one quadrant of IRMA

What are the signs of PDR (Proliferative Diabetic Retinopathy)?

1. Neovascularization within 1DD of disc
2. NVE (Neovascularization elsewhere)
3. NVI (Neovascularization of the iris)

1.  Severe vitreous hemorrhage

2.  Retinal detachment

What is the greatest cause of vision loss that can be found in all stages of retinopathy?

CSME

Name three physiologic definitions of CSME?

1.  Retinal thickening within 500 micrometers (1/3 DD of macula) OR

2.  Hard exudates within 500 micrometers of the center of the macula OR

3.  Retinal thickening greater than 1 DD in size part of which is within 1 DD of the center of the macula

What are the four refractive symptoms of Diabetic retinopathy?

1. Myopic shift

2.  Hyperopic shift

3.  Early onset presbyopia due to reduced lens pliability

4.  Tritan Color Vision loss