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An illuminated cannula for viscodelamination
1Department of Ophthalmology, Washington University School of Medicine, St Louis.
Archives of Ophthalmology (Chicago, Ill. : 1960)
|July 1, 1989
Summary
A new fiberoptic illuminated cannula aids diabetic posterior segment surgery by injecting viscoelastic substances. This technique improves delamination of preretinal membranes and may reduce posterior breaks in diabetic patients.
Area of Science:
- Ophthalmology
- Surgical Innovation
Background:
- Diabetic retinopathy involves fibrovascular proliferation and preretinal membranes.
- Surgical management of these membranes can be challenging, risking retinal breaks.
Purpose of the Study:
- To introduce and evaluate a novel fiberoptic illuminated infusion cannula for posterior segment surgery.
- To assess the utility of this instrument in managing diabetic fibrovascular proliferation.
Main Methods:
- A fiberoptic illuminated infusion cannula was used to introduce viscoelastic substances.
- The cannula facilitated delamination of preretinal membranes in diabetic patients.
- The technique was applied in 12 patients with severe diabetic fibrovascular proliferation.
Main Results:
- The cannula allowed precise injection of viscoelastic substances under preretinal membranes.
- It helped define vascular epicenters, making scissors delamination easier and safer.
- The technique was particularly beneficial in diabetics with an attached posterior hyaloid.
Conclusions:
- This fiberoptic illuminated cannula is a valuable tool for posterior segment surgery in diabetic patients.
- It appears to reduce the incidence of posterior breaks during membrane delamination.
- Successful application in 12 patients demonstrates its efficacy in complex cases.