TFOS DEWS II Dry Eye Severity

Assess dry eye disease severity using TFOS DEWS II framework: SPEED/OSDI symptoms, TBUT <10s, corneal fluorescein staining >=5 Oxford spots, Schirmer, and MMP-9 positivity for grading 1-4.

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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

Assess dry eye disease severity using TFOS DEWS II framework: SPEED/OSDI symptoms, TBUT <10s, corneal fluorescein staining >=5 Oxford spots, Schirmer, and MMP-9 positivity for grading 1-4

Each component has a specific meaning:

  • TFOS DEWS II framework: SPEED/OSDI symptoms — The tfos dews ii framework: speed/osdi symptoms recorded for the scenario being assessed.
  • TBUT <10s — The tbut <10s recorded for the scenario being assessed.
  • Corneal fluorescein staining >=5 Oxford spots — The corneal fluorescein staining >=5 oxford spots recorded for the scenario being assessed.
  • Schirmer — The schirmer recorded for the scenario being assessed.
  • MMP-9 positivity — The mmp-9 positivity recorded for the scenario being assessed.

Note: Interpret the dews ii severity result against the thresholds and context described above.

How to Use

Enter the TFOS DEWS II framework: SPEED/OSDI symptoms, TBUT <10s, corneal fluorescein staining >=5 Oxford spots, Schirmer, MMP-9 positivity for the scenario you are assessing. Assess dry eye disease severity using TFOS DEWS II framework: SPEED/OSDI symptoms, TBUT <10s, corneal fluorescein staining >=5 Oxford spots, Schirmer, and MMP-9 positivity for grading 1-4. Use the dews ii severity result to inform your calculation.

Frequently Asked Questions