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Corneal thickness and visual acuity after phacoemulsification with 3 viscoelastic materials.
1Phillips Eye Institute, Minneapolis, Minnesota, USA.
Journal of Cataract and Refractive Surgery
|October 18, 2000
Summary
Phacoemulsification using Viscoat, Amvisc Plus, or OcuCoat showed comparable outcomes. Postoperative visual acuity and corneal thickness were similar across all three viscoelastic substances, indicating no significant differences in effectiveness.
Area of Science:
- Ophthalmology
- Surgical Techniques
- Biomaterials
Background:
- Phacoemulsification is a common cataract surgery technique.
- Viscoelastic substances are crucial for maintaining anterior chamber space during surgery.
- Different viscoelastic agents may impact postoperative outcomes.
Purpose of the Study:
- To compare visual acuity and corneal thickness after phacoemulsification using three different viscoelastic substances.
- To evaluate the safety and efficacy of Amvisc Plus, OcuCoat, and Viscoat.
Main Methods:
- A randomized study involving 50 patients undergoing phacoemulsification.
- Patients received one of three viscoelastic substances: Amvisc Plus, OcuCoat, or Viscoat.
- Postoperative visual acuity and corneal thickness were assessed on day one.
Main Results:
- No significant differences in best corrected visual acuity (BCVA) were observed among the three groups.
- Corneal thickness was significantly thinner in patients with better visual acuity (20/40 or better).
- No differences in the percentage increase in central corneal pachymetry were found between the viscoelastic groups.
Conclusions:
- Viscoat, Amvisc Plus, and OcuCoat demonstrated comparable performance in routine phacoemulsification.
- All tested viscoelastic substances effectively produced clear corneas and good vision post-surgery.
- The choice of viscoelastic substance did not significantly alter immediate postoperative visual outcomes.