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Refractive lensectomy to correct ametropia.

D Vicary1, X Y Sun, P Montgomery

  • 1Pacific Eye Center, Brisbane, Queensland, Australia.

Journal of Cataract and Refractive Surgery
|July 15, 1999
PubMed
Summary
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Refractive lensectomy offers excellent visual outcomes for ametropia, achieving high rates of good visual acuity and refractive accuracy with minimal complications. This procedure is suitable for selected patients with myopia, hyperopia, and astigmatism.

Area of Science:

  • Ophthalmology
  • Refractive Surgery
  • Corneal Surgery

Background:

  • Refractive lensectomy is a surgical procedure aimed at correcting refractive errors.
  • Ametropia, encompassing myopia, hyperopia, and astigmatism, affects a significant portion of the population.
  • Accurate and safe surgical correction of ametropia remains a key goal in ophthalmic surgery.

Purpose of the Study:

  • To evaluate the postoperative results of refractive lensectomy for correcting ametropia.
  • To assess visual acuity and refractive outcomes following the procedure.
  • To determine the complication rates associated with refractive lensectomy.

Main Methods:

  • Retrospective analysis of 138 refractive lensectomy cases performed by a single surgeon.
  • Patients with preoperative spherical equivalent (SE) ranging from -23.75 D to +11.62 D were included.

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  • Eyes were categorized into six groups based on preoperative SE, with astigmatism greater than -2.00 D considered in low SE cases.

    • Main Results:

    • 90.0% of eyes achieved uncorrected visual acuity of 20/40 or better, with 81.2% achieving 20/30 or better.
    • Postoperative SE was within +/- 2.0 D of emmetropia in 93.5% of eyes and within +/- 1.0 D in 78.3%.
    • Low complication rates were observed, including 0.7% retinal detachment, 2.8% IOL exchange, and 0.7% late uveitis. No cystoid macular edema, capsule tear, or endophthalmitis occurred.

    Conclusions:

    • Refractive lensectomy demonstrates potential for achieving excellent visual acuity and refractive outcomes.
    • The procedure is associated with a low incidence of serious complications.
    • Refractive lensectomy is a viable option for selected patients with myopia, hyperopia, astigmatism, and residual ametropia.