Cup-to-Disc Ratio Glaucoma Risk Assessment

Assesses cup-to-disc ratio for glaucoma risk stratification using vertical CDR, ISNT rule compliance, neuroretinal rim analysis, and peripapillary nerve fiber layer thickness guidance.

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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

Assesses cup-to-disc ratio for glaucoma risk stratification using vertical CDR, ISNT rule compliance, neuroretinal rim analysis, and peripapillary nerve fiber layer thickness guidance

Each component has a specific meaning:

  • Vertical CDR — The vertical cdr recorded for the scenario being assessed.
  • ISNT rule compliance — The isnt rule compliance recorded for the scenario being assessed.
  • Neuroretinal rim analysis — The neuroretinal rim analysis recorded for the scenario being assessed.
  • Peripapillary nerve fiber layer thickness guidance — The peripapillary nerve fiber layer thickness guidance recorded for the scenario being assessed.

Note: Interpret the cdr glaucoma risk result against the thresholds and context described above.

How to Use

Enter the vertical CDR, ISNT rule compliance, neuroretinal rim analysis, peripapillary nerve fiber layer thickness guidance for the scenario you are assessing. Assesses cup-to-disc ratio for glaucoma risk stratification using vertical CDR, ISNT rule compliance, neuroretinal rim analysis, and peripapillary nerve fiber layer thickness guidance. Use the cdr glaucoma risk result to inform your calculation.

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Frequently Asked Questions