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Related Experiment Videos

Lamellar transplants in keratoconus.

T O Wood

    American Journal of Ophthalmology
    |April 1, 1977
    PubMed
    Summary

    Lamellar keratoplasty for keratoconus offered better refractive outcomes than penetrating keratoplasty. However, visual acuity was reduced, suggesting its use for specific cases like large eccentric cones.

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    Area of Science:

    • Ophthalmology
    • Corneal Surgery

    Background:

    • Keratoconus is a progressive thinning of the cornea.
    • Penetrating keratoplasty is a common surgical treatment for advanced keratoconus.
    • Lamellar keratoplasty offers a potential alternative with tissue preservation.

    Purpose of the Study:

    • To compare postoperative refractive error and visual outcomes of lamellar keratoplasty versus penetrating keratoplasty in keratoconus patients.
    • To evaluate the suitability of lamellar keratoplasty for specific keratoconus presentations.

    Main Methods:

    • Lamellar keratoplasty was performed on 18 eyes diagnosed with keratoconus.
    • Outcomes were compared to historical data from 7.5-mm penetrating keratoplasties.

    Main Results:

    • Lamellar keratoplasty resulted in a more favorable postoperative refractive error compared to penetrating keratoplasty.
    • Visual acuity was significantly poorer after lamellar keratoplasty than after penetrating keratoplasty.

    Conclusions:

    • While lamellar keratoplasty improves refractive outcomes, the compromise in visual acuity limits its general application.
    • This technique may be best suited for patients with large eccentric cones or those unsuitable for penetrating keratoplasty.

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