Diabetic Retinopathy Severity Grading (ETDRS/International Classification)

Grades diabetic retinopathy severity using the International Clinical DR Disease Severity Scale, calculates risk of progression to PDR, and determines anti-VEGF and pan-retinal photocoagulation treatment 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

Grades diabetic retinopathy severity using the International Clinical DR Disease Severity Scale, calculates risk of progression to PDR, and determines anti-VEGF and pan-retinal photocoagulation treatment thresholds

Each component has a specific meaning:

  • International Clinical DR Disease Severity Scale — The international clinical dr disease severity scale recorded for the scenario being assessed.
  • Calculates risk of progression — The calculates risk of progression recorded for the scenario being assessed.

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

How to Use

Enter the International Clinical DR Disease Severity Scale, calculates risk of progression for the scenario you are assessing. Grades diabetic retinopathy severity using the International Clinical DR Disease Severity Scale, calculates risk of progression to PDR, and determines anti-VEGF and pan-retinal photocoagulation treatment thresholds. Use the dr severity grade result to inform your calculation.

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Frequently Asked Questions