Intraocular Pressure Corneal Thickness Correction (Ehlers Formula)

Corrects Goldmann applanation tonometry IOP for central corneal thickness (CCT) using the Ehlers and DIGS correction formulas, and calculates glaucoma target IOP based on stage and baseline IOP.

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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

Corrects Goldmann applanation tonometry IOP for central corneal thickness (CCT) using the Ehlers and DIGS correction formulas, and calculates glaucoma target IOP based on stage and baseline IOP

Each component has a specific meaning:

  • Ehlers — The ehlers recorded for the scenario being assessed.
  • DIGS correction formulas — The digs correction formulas recorded for the scenario being assessed.
  • Calculates glaucoma target IOP based on stage — The calculates glaucoma target iop based on stage recorded for the scenario being assessed.
  • Baseline IOP — The baseline iop recorded for the scenario being assessed.

Note: Interpret the iop cct correction result against the thresholds and context described above.

How to Use

Enter the Ehlers, DIGS correction formulas, calculates glaucoma target IOP based on stage, baseline IOP for the scenario you are assessing. Corrects Goldmann applanation tonometry IOP for central corneal thickness (CCT) using the Ehlers and DIGS correction formulas, and calculates glaucoma target IOP based on stage and baseline IOP. Use the iop cct correction result to inform your calculation.

Frequently Asked Questions