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Specular microscopy in pars plana vitrectomy.

K R Diddie, D J Schanzlin

    Archives of Ophthalmology (Chicago, Ill. : 1960)
    |March 1, 1983
    PubMed
    Summary
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    Pars plana vitrectomy, a common eye surgery, does not significantly impact endothelial cell loss. This finding holds true even for diabetic patients, suggesting the procedure is safe for corneal health.

    Area of Science:

    • Ophthalmology
    • Corneal Science
    • Surgical Outcomes

    Background:

    • Endothelial cell loss is a concern following intraocular surgeries.
    • Pars plana vitrectomy is frequently performed for various retinal conditions.

    Purpose of the Study:

    • To prospectively evaluate endothelial cell loss after pars plana vitrectomy (PPV) with and without lensectomy.
    • To assess the safety of PPV regarding corneal endothelial integrity.

    Main Methods:

    • Prospective study involving 21 eyes undergoing PPV or PPV with lensectomy.
    • Included 15 diabetic and 6 nondiabetic patients.
    • Endothelial cell counts were measured preoperatively and postoperatively.

    Main Results:

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  • Average endothelial cell loss ranged from 2.3% to 3.9%.
  • No statistically significant difference was observed compared to preoperative counts.
  • Phakic eyes and cases maintaining the anterior capsule showed minimal cell loss.

    • Conclusions:

    • Pars plana vitrectomy appears to be safe concerning corneal endothelial cell loss.
    • Maintaining the phakic state or anterior capsule integrity may further minimize cell loss.
    • The procedure is a viable option for retinal conditions without significant risk to corneal endothelium.