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Related Experiment Videos

The triple procedure. Refractive results. 1985 update.

P S Binder

    Ophthalmology
    |December 1, 1986
    PubMed
    Summary

    The triple procedure can effectively correct combined corneal opacity and cataracts, achieving refractive outcomes near emmetropia. Improvements in the last 30 months suggest enhanced accuracy in this ophthalmic surgery.

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    Area of Science:

    • Ophthalmology
    • Refractive Surgery
    • Biomedical Engineering

    Background:

    • Combined corneal opacity and cataracts present a significant challenge in visual rehabilitation.
    • The triple procedure, involving keratoplasty, cataract extraction, and intraocular lens implantation, is a complex surgical approach.
    • Achieving predictable refractive outcomes is crucial for patient satisfaction and functional vision restoration.

    Purpose of the Study:

    • To evaluate the refractive predictability of the triple procedure.
    • To identify factors influencing refractive outcomes in triple procedures.
    • To assess the efficacy of the triple procedure for managing combined corneal and cataractous conditions.

    Main Methods:

    • Retrospective and prospective study of 77 triple procedures over 6 years.
    • Analysis of refractive errors, aiming for within 2 diopters (D) of emmetropia.
    • Evaluation of the impact of axial length, keratometry, and "A" constant on refractive outcomes.

    Main Results:

    • 38 of 58 eyes achieved refractive errors within 2 D of emmetropia.
    • Procedures in the last 30 months showed improved refractive accuracy, nearing emmetropia.
    • Postoperative keratometry and "A" constant were key determinants of refractive error; inaccurate axial length or IOLs were rare causes of poor outcomes.

    Conclusions:

    • The triple procedure is a viable option for correcting combined corneal opacity and cataracts.
    • Refined surgical techniques and accurate preoperative measurements enhance refractive predictability.
    • Attention to axial length, keratometry, and "A" constant optimization is vital for successful outcomes.

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