Diabetic Retinopathy ETDRS Severity

Grade diabetic retinopathy severity using ETDRS scale: mild NPDR (level 20), moderate NPDR (43-47), severe NPDR (53), PDR (61-71), and advanced PDR (81-85) for treatment decision thresholds.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Grade diabetic retinopathy severity using ETDRS scale: mild NPDR (level 20), moderate NPDR (43-47), severe NPDR (53), PDR (61-71), and advanced PDR (81-85) for treatment decision thresholds

Each component has a specific meaning:

  • ETDRS scale: mild NPDR — The etdrs scale: mild npdr recorded for the scenario being assessed.
  • Moderate NPDR — The moderate npdr recorded for the scenario being assessed.
  • Severe NPDR — The severe npdr recorded for the scenario being assessed.
  • PDR — The pdr recorded for the scenario being assessed.
  • Advanced PDR — The advanced pdr recorded for the scenario being assessed.

Note: Interpret the dr etdrs severity result against the thresholds and context described above.

How to Use

Enter the ETDRS scale: mild NPDR, moderate NPDR, severe NPDR, PDR, advanced PDR for the scenario you are assessing. Grade diabetic retinopathy severity using ETDRS scale: mild NPDR (level 20), moderate NPDR (43-47), severe NPDR (53), PDR (61-71), and advanced PDR (81-85) for treatment decision thresholds. Use the dr etdrs severity result to inform your calculation.

Frequently Asked Questions