New technique of deep anterior lamellar keratoplasty

• Autores: Paulo Ferrara, Leonardo Torquetti, Leandro Cunha
• Localización: Journal of Emmetropia: Journal of Cataract, Refractive and Corneal Surgery, ISSN-e 2171-4703, Vol. 2, Nº. 2, 2011, págs. 79-83
• Idioma: inglés
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• Resumen

  • We present a simple, effective and reproducible technique of deep anterior lamellar keratoplasty.

    Using a diamond knife, set at 90% of corneal thickness at (90 degrees meridian), at 8 mm optic zone, a radial incision was done and corneal pockets were created. A 6.0 nylon preloaded spatula was then inserted into the corneal pocket and in a counterclockwise direction rotated in 3600 to create a deep stromal tunnel. A partial-thickness 8 mm trephination was done. The spatula was removed from the tunnel and the nylon wire was pulled from both sides of the radial incision to dissect deep to the corneal stroma leaving little residual stroma over the Descemet’s membrane. The residual anterior stroma is removed with a Vannas scissors. The donor button is sutured. The main advantages of this technique are the very low learning curve and the regular stromal dissection with almost no residual tissue over the Descemet’s membrane.