DECODE

Individual Analysis

Enter at least one symptom questionnaire, provide either TBUT or NIBUT, and provide Corneal Staining to calculate symptom–sign discordance.

Patient Information

Patient name is optional and used only for the current PDF. It is never stored.

Whole years, if available

Select one option, if available

Symptom Questionnaires

Enter the available questionnaire scores. Leave unavailable measurements blank.

Range: 0–100

Range: 0–24

Range: 0–22

Range: 0–28

Range: 0–100

Clinical Signs

Record each available measurement for the right and left eye. Leave missing values blank.

Right Eye (OD)
Tear breakup time measured in seconds.

Range: 0–20

Non-invasive tear breakup time measured in seconds.

Range: 0–20

Schirmer test result measured in millimeters.

Range: 0–35

Tear meniscus height measured in millimeters.

Range: 0–0.50

Tear osmolarity measured in mOsm/L.

Range: 200–600

The same staining method is applied to both eyes.

Corneal staining score using the selected ocular surface staining method.

Required in at least one eye to calculate DECODE results.

Range: 0–15

Conjunctival staining score using the selected ocular surface staining method.

Range: 0–18

Horizontal lid wiper epitheliopathy grade.
  • 0 = <2 mm
  • 1 = 2–4 mm
  • 2 = 5–9 mm
  • 3 = ≥10 mm
Sagittal lid wiper epitheliopathy grade.
  • 0 = <25%
  • 1 = 25% to <50%
  • 2 = 50% to <75%
  • 3 = ≥75%
Grade describing expressed meibum quality.
  • 0 = Clear fluid
  • 1 = Cloudy fluid
  • 2 = Cloudy particulate
  • 3 = Toothpaste-like
Pressure required to achieve expression of the meibomian glands.
  • 0 = Very light pressure
  • 1 = Mild pressure
  • 2 = Moderate pressure
  • 3 = Severe pressure
Percentage of meibomian gland loss.

Range: 0–100

Left Eye (OS)
Tear breakup time measured in seconds.

Range: 0–20

Non-invasive tear breakup time measured in seconds.

Range: 0–20

Schirmer test result measured in millimeters.

Range: 0–35

Tear meniscus height measured in millimeters.

Range: 0–0.50

Tear osmolarity measured in mOsm/L.

Range: 200–600

The same staining method is applied to both eyes.

Corneal staining score using the selected ocular surface staining method.

Required in at least one eye to calculate DECODE results.

Range: 0–15

Conjunctival staining score using the selected ocular surface staining method.

Range: 0–18

Horizontal lid wiper epitheliopathy grade.
  • 0 = <2 mm
  • 1 = 2–4 mm
  • 2 = 5–9 mm
  • 3 = ≥10 mm
Sagittal lid wiper epitheliopathy grade.
  • 0 = <25%
  • 1 = 25% to <50%
  • 2 = 50% to <75%
  • 3 = ≥75%
Grade describing expressed meibum quality.
  • 0 = Clear fluid
  • 1 = Cloudy fluid
  • 2 = Cloudy particulate
  • 3 = Toothpaste-like
Pressure required to achieve expression of the meibomian glands.
  • 0 = Very light pressure
  • 1 = Mild pressure
  • 2 = Moderate pressure
  • 3 = Severe pressure
Percentage of meibomian gland loss.

Range: 0–100

Potential Drivers

Potential drivers are preserved for context and do not alter calculations.

Analysis Settings

Choose how available symptom questionnaires and clinical signs are combined.

How the two eyes are combined

Missing optional values remain missing and are never converted to zero.

If you experience a problem while using DECODE, contact germanmejiainvest@gmail.com.