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Lens extraction for uncontrolled angle-closure glaucoma: long-term follow-up

F P Gunning, E L Greve

    Journal of Cataract and Refractive Surgery
    |October 31, 1998
    PubMed
    Summary
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    Lens extraction effectively controls glaucoma in angle-closure patients, offering better visual outcomes than traditional drainage surgery. This approach may be a more attractive initial treatment for chronic angle-closure glaucoma.

    Area of Science:

    • Ophthalmology
    • Glaucoma Research
    • Surgical Outcomes

    Background:

    • Angle-closure glaucoma poses significant challenges to intraocular pressure (IOP) management.
    • Subacute or chronic angle-closure glaucoma often requires complex surgical interventions.
    • Evaluating novel treatment strategies is crucial for improving patient outcomes.

    Purpose of the Study:

    • To assess the long-term efficacy of lens extraction in managing glaucoma in patients with subacute or chronic angle-closure glaucoma.
    • To compare the outcomes of lens extraction with those of traditional filtering procedures.

    Main Methods:

    • Retrospective analysis of 18 patients undergoing extracapsular lens extraction with intraocular lens implantation (Group 1).
    • Comparison with 19 patients who underwent filtering procedures for chronic angle-closure glaucoma (Group 2).

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  • Evaluation metrics included visual fields, diurnal IOP, gonioscopy, and medication use.

    • Main Results:

    • Glaucoma control was achieved in 68% of patients in both groups.
    • Lens extraction (Group 1) resulted in a mean IOP reduction and required fewer additional surgeries (27%) compared to filtering procedures (Group 2, 80%).
    • Visual acuity outcomes were significantly better in the lens extraction group (91% maintained or improved) versus the filtering group (52% unchanged/better, 48% worse).

    Conclusions:

    • Lens extraction offers comparable glaucoma control to filtering surgery but with fewer complications and better visual preservation.
    • Initiating treatment with lens extraction, with potential for future trabeculectomy, appears more advantageous than trabeculectomy followed by optional cataract surgery.
    • This suggests a shift in preferred surgical strategy for angle-closure glaucoma management.