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Corneal vital staining with gentian violet
1Dhaka Medical College Hospital.
Bangladesh Medical Research Council Bulletin
|December 1, 1990
Summary
Gentian violet effectively stains corneal epithelial defects, aiding early diagnosis in ophthalmology. This vital stain is highly sensitive and specific, with minimal side effects, promoting prompt treatment.
Area of Science:
- Ophthalmology
- Corneal Diseases
- Diagnostic Stains
Background:
- Corneal affections require early and accurate diagnosis for effective treatment.
- Vital stains are crucial tools in ophthalmology for visualizing corneal pathology.
Purpose of the Study:
- To evaluate the efficacy and safety of 0.5% gentian violet as a corneal vital stain.
- To determine the diagnostic accuracy of gentian violet for corneal epithelial defects.
Main Methods:
- A prospective study involving 112 patients with corneal involvement and 40 controls.
- Application of 0.5% gentian violet solution to stain corneal epithelial defects and degenerated cells.
Main Results:
- Gentian violet successfully stained epithelial defects and degenerated corneal cells.
- The stain persisted for 3-5 minutes, disappearing within 8-10 minutes.
- High sensitivity (approx. 100%) and specificity (approx. 95%) were observed with minor side effects.
Conclusions:
- Gentian violet is a feasible and effective vital stain for diagnosing corneal affections.
- Its high sensitivity and specificity make it valuable for early detection in community ophthalmology.
- The stain does not impede corneal healing and shows no cross-infection risk.