What is the purpose of the yellow filter?
04/15/26
The built-in yellow filter enhances fluorescein staining visibility by:
- Increasing contrast of corneal staining patterns
- Reducing background light interference
- Improving tear film break-up time (TBUT) observation
- Supporting contact lens fitting assessments
The built-in yellow filter enhances fluorescein staining visibility by:
- Increasing contrast of corneal staining patterns
- Reducing background light interference
- Improving tear film break-up time (TBUT) observation
- Supporting contact lens fitting assessments





