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Indocyanine green selectively stains the internal limiting membrane
A Gandorfer1, E M Messmer, M W Ulbig
1Department of Ophthalmology, Ludwig-Maximilians-University, Mathildenstrasse 8, D-80336 München, Germany.
American Journal of Ophthalmology
|March 10, 2001
Summary
Indocyanine green dye selectively stains the retina's inner limiting membrane, not residual vitreous cortex. This vital dye aids surgeons in distinguishing and safely removing the inner limiting membrane during eye surgery.
Area of Science:
- Ophthalmology
- Retinal Surgery
- Microscopy
Background:
- The vitreomacular interface is crucial in retinal health.
- Distinguishing the inner limiting membrane from residual vitreous cortex can be challenging during surgery.
Purpose of the Study:
- To determine if indocyanine green stains the inner limiting membrane or residual vitreous cortex.
- To evaluate the utility of indocyanine green in differentiating these structures during ophthalmic procedures.
Main Methods:
- Retrospective analysis of 10 patients undergoing vitrectomy with indocyanine green staining.
- Intraoperative observation of staining patterns on the vitreomacular interface.
- Light and transmission electron microscopy to confirm stained structures.
Main Results:
- Indocyanine green stained a discernible membrane in macular hole cases after posterior vitreous detachment.
- In cases with adherent cortical vitreous, indocyanine green did not stain the interface until the vitreous was removed.
- Microscopy confirmed the stained membrane was the inner limiting membrane.
Conclusions:
- Indocyanine green selectively stains the inner limiting membrane.
- This vital dye facilitates differentiation between the inner limiting membrane and vitreous cortex.
- Enables safer and more efficient removal of the inner limiting membrane in retinal surgery.