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๐ Ocular Surface Stains + Staining Score Systems
Ophthalmic dyes like
Fluorescein, Rose Bengal, and Lissamine Green
help visualize corneal and conjunctival damage in patients with dry eye and other surface disorders.
๐ Stain Color & Use Summary
Dye NameColorUsed For
| Fluorescein | Green (fluorescent) | Cornea |
| Rose Bengal | Pink/Red | Conjunctiva, devitalized cells |
| Lissamine Green | Green | Conjunctiva, dry eye assessment |
๐ What is a Staining Score?
A corneal or conjunctival staining score quantifies ocular surface damage
by counting stained lesions or grading patterns, allowing objective comparison over time.
๐งช Why scoring is important:
- Better than vague terms like "improving" or "worsening"
- Allows before-and-after treatment comparison
- Widely used in clinical research and drug development
๐ Key Grading Systems
- NEI/Industry Grading Scale (USA)
- Oxford Grading Scale (UK)
- Ocular Staining Score (OSS)
- van Bijsterveld Grading
โ Summary
- Vital stains + grading systems allow objective evaluation of surface damage
- Essential for dry eye diagnosis, treatment monitoring, and clinical trials
