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Complications associated with STAAR silicone implants.

A C Neumann1, G R McCarty, R H Osher

  • 1Neumann Eye Institute, DeLand, Florida 32720.

Journal of Cataract and Refractive Surgery
|November 1, 1987
PubMed
Summary
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STAAR silicone intraocular lenses showed higher complication rates, including lens subluxation and corneal edema, compared to polymethylmethacrylate (PMMA) implants. Despite issues with YAG laser procedures, visual outcomes were similar between the two intraocular lens types.

Area of Science:

  • Ophthalmology
  • Biomaterials Science

Background:

  • Intraocular lenses (IOLs) are crucial for vision restoration after cataract surgery.
  • Silicone and polymethylmethacrylate (PMMA) are common IOL materials with distinct properties.

Purpose of the Study:

  • To compare the complication incidence between STAAR silicone and IOLAB PMMA intraocular implants.
  • To evaluate the impact of IOL material on surgical outcomes and postoperative procedures.

Main Methods:

  • A comparative study involving 152 eyes (76 silicone, 76 PMMA IOLs).
  • Standardized phacoemulsification technique performed by a single surgeon.
  • Postoperative monitoring for complications and assessment of visual acuity.

Main Results:

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  • STAAR silicone IOLs exhibited higher rates of lens subluxation, repositioning, corneal edema, and elevated intraocular pressure.
  • Challenges were noted with YAG laser posterior capsulotomy for certain STAAR silicone models (RMX 1) and pitting with others (RMX 3).
  • Corrected visual acuity was comparable between the silicone and PMMA IOL groups.

    • Conclusions:

    • STAAR silicone IOLs were associated with a greater incidence of specific postoperative complications compared to IOLAB PMMA IOLs.
    • Material-related complications may affect the feasibility of standard postoperative laser treatments.
    • Despite material-specific issues, both IOL types provided similar final visual outcomes.