What is the diabetic retinopathy severity scale?
The ETDRS Disease Severity Scale was developed to differentiate severe proliferative from nonproliferative diabetic retinopathy. It was based on the quantity and location of microaneurysms, intraretinal microvascular anomalies (IRMA), venous beading, hemorrhage, and neovascularization.
How many stages of diabetic retinopathy development are there?
Diabetic retinopathy is a progressive eye disease classified by two types and four stages.
What is Type 2 diabetic retinopathy?
Diabetic retinopathy is a complication of diabetes, caused by high blood sugar levels damaging the back of the eye (retina). It can cause blindness if left undiagnosed and untreated. However, it usually takes several years for diabetic retinopathy to reach a stage where it could threaten your sight.
How do you classify diabetic retinopathy?
Diabetic retinopathy falls into two main classes: nonproliferative and proliferative. The word “proliferative” refers to whether or not there is neovascularization (abnormal blood vessel growth) in the retinaEarly disease without neovascularization is called nonproliferative diabetic retinopathy (NPDR).
What are the Etdrs classification in diabetic retinopathy?
The ETDRS and DRSS evolution
| ETDRS Level | Disease Severity | Definition |
|---|---|---|
| 61 | Mild PDR | NVE < 1/2 disc area in 1 or more quadrants |
| 65 | Moderate PDR | NVE ≥ 1/2 disc area in 1 or more quadrants or NVD < 1/4–1/3 disc area |
| 71-75 | High-Risk PDR | NVD ≥ 1/4–1/3 disc area and/or vitreous hemorrhage |
| 81-85 | Advanced PDR | Fundus partially obscured |
What is moderate diabetic retinopathy?
Moderate Nonproliferative Retinopathy At this stage, the blood vessels in your retinas swell. They may not carry blood as well as they used to. These things can cause physical changes to the retina. These changes can lead to diabetic macular edema (DME).
What is the 4 2 1 rule diabetic retinopathy?
You can categorize this version of the condition by using the “4-2-1” rule—that is, one has severe NPDR if hemorrhages or microaneurysms, or both, appear in all four retinal quadrants; venous beading appears in two or more retinal quadrants; or prominent IRMAs are present in at least one retinal quadrant.
How do you read Etdrs chart?
A loss of ≥ 3 lines (≥ 15 letters) on an ETDRS chart corresponds to a doubling of the visual angle and is considered moderate visual loss, while a loss of ≥ 6 lines (≥ 30 letters) corresponds to a quadrupling of the visual angle and is considered severe.
What does Etdrs mean?
Early Treatment Diabetic Retinopathy Study (ETDRS)
Can retinopathy get better?
While treatment can slow or stop the progression of diabetic retinopathy, it’s not a cure. Because diabetes is a lifelong condition, future retinal damage and vision loss are still possible. Even after treatment for diabetic retinopathy, you’ll need regular eye exams. At some point, you might need additional treatment.
Can laser Cure retinopathy?
For diabetic retinopathy that is threatening or affecting your sight, the main treatments are: laser treatment – to treat the growth of new blood vessels at the back of the eye (retina) in cases of proliferative diabetic retinopathy, and to stabilise some cases of maculopathy.
How fast does diabetic retinopathy progress?
In the severe form of nonproliferative diabetic retinopathy, it can progress to proliferative diabetic retinopathy up to 60% of the time within 12 months.
What are the stages of diabetic retinopathy?
Diabetic retinopathy is a progressive eye disease classified by two types and four stages. The two types are nonproliferative and proliferative. Nonproliferative refers to early stages of the disease, while proliferative is an advanced form of the disease.
What is mild nonproliferative diabetic retinopathy?
Mild nonproliferative retinopathy: early stage of DR The earliest stage of diabetic retinopathy is the mild nonproliferative stage. During this stage, the presence of diabetes can cause the structure of the retina to change. At least one microaneurysm (a tiny red protrusion, or “bulb,” in a blood vessel in the retina) occurs during this stage.
What are the degrees of referable retinopathy?
degrees of referable retinopathy – this means you have stage 2 or 3 retinopathy, or diabetic maculopathy, and should have more frequent tests or talk to a specialist about possible treatments
What happens at Stage 3 of retinopathy?
Stage 3: proliferative retinopathy. This means that new blood vessels and scar tissue have formed on your retina, which can cause significant bleeding and lead to retinal detachment (where the retina pulls away from the back of the eye). At this stage: