EpistemisTear Film Physiology and Ocular Surface Index (OSDI)
Required inputs
| Variable | Example value |
|---|---|
| 1. Abnormal sensitivity to light (Photophobia) | — |
| 2. Feeling of grit or foreign body in the eye | — |
| 3. Continuous eye pain or stinging | — |
| 4. Blurred or unstable vision | — |
| 5. Read books, screens or newspapers | — |
| 6. Driving at night or in poor lighting | — |
| 7. Working in front of the computer or display screens | — |
| 8. Prolonged television viewing | — |
| 9. In windy environments | — |
| 10. In closed places with air conditioning or active heating | — |
| 11. In areas with low relative humidity or very dry environments | — |
Run the calculation in the app
This page explains the score but does not run it. In Epistemis, the calculator validates units, flags values outside physiological ranges, and provides the interpretation that a number alone cannot convey.
Epistemis is educational review material. It is not a medical device, does not diagnose or prescribe treatment, and does not replace formal medical training, current clinical guidelines, or professional clinical judgment.
- Specialty
- Ophthalmology
- Area
- Specialties
- Variables
- 11