Keratoconus Staging and Corneal Collagen Cross-Linking Eligibility

Stages keratoconus using ABCD grading (anterior/posterior elevation, thinnest point, BSCVA) on Pentacam, assesses CXL eligibility (progression ≥1 D/year), and calculates topography-guided ablation suitability.

Weight
Height
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

Stages keratoconus using ABCD grading (anterior/posterior elevation, thinnest point, BSCVA) on Pentacam, assesses CXL eligibility (progression ≥1 D/year), and calculates topography-guided ablation suitability

Each component has a specific meaning:

  • ABCD grading (anterior/posterior elevation — The abcd grading (anterior/posterior elevation recorded for the scenario being assessed.
  • Thinnest point — The thinnest point recorded for the scenario being assessed.
  • BSCVA) on Pentacam — The bscva) on pentacam recorded for the scenario being assessed.
  • Assesses CXL eligibility — The assesses cxl eligibility recorded for the scenario being assessed.
  • Calculates topography-guided ablation suitability — The calculates topography-guided ablation suitability recorded for the scenario being assessed.

Note: Interpret the keratoconus stage result against the thresholds and context described above.

How to Use

Enter the ABCD grading (anterior/posterior elevation, thinnest point, BSCVA) on Pentacam, assesses CXL eligibility, calculates topography-guided ablation suitability for the scenario you are assessing. Stages keratoconus using ABCD grading (anterior/posterior elevation, thinnest point, BSCVA) on Pentacam, assesses CXL eligibility (progression ≥1 D/year), and calculates topography-guided ablation suitability. Use the keratoconus stage result to inform your calculation.

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