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Inflammatory response to viscoelastic materials
S J McKnight1, J Giangiacomo, E Adelstein
1Department of Ophthalmology, University of Missouri-Columbia School of Medicine.
Ophthalmic Surgery
|November 1, 1987
Summary
This study compared the inflammatory response of three viscoelastic substances used in eye surgery. Results showed minimal differences in inflammation, suggesting Viscoat, Healon, and Amvisc are comparable for corneal stroma applications.
Area of Science:
- Ophthalmology
- Biomaterials Science
- Corneal Surgery
Background:
- Viscoelastic substances are crucial in ophthalmic surgery, particularly for maintaining space and protecting tissues.
- Understanding the biocompatibility and inflammatory potential of these agents is vital for patient outcomes.
Purpose of the Study:
- To evaluate and compare the inflammatory responses induced by three commonly used viscoelastic substances: Healon, Amvisc, and Viscoat.
- To assess the safety profile of these agents when injected into the corneal stroma.
Main Methods:
- 36 normal rabbit eyes received injections of Healon, Amvisc, or Viscoat into the corneal stroma.
- 12 control eyes underwent a sham procedure.
- Eyes were enucleated and examined via light microscopy at one and seven days post-injection.
Main Results:
- No detectable inflammation was observed in control eyes.
- Viscoat showed mild inflammation at seven days, but this was not statistically significant (p = 0.182).
- Overall, there was little discernible difference in the inflammatory response among Healon, Amvisc, and Viscoat.
Conclusions:
- Healon, Amvisc, and Viscoat demonstrate comparable inflammatory profiles when injected into the corneal stroma.
- These viscoelastic agents appear to have a low potential for inducing significant inflammation in this ocular model.
- Further clinical studies may be warranted to confirm these findings in human subjects.
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