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  • Title: Deep anterior lamellar keratoplasty versus penetrating keratoplasty in corneas showing a high or low graft rejection risk.
    Author: Infantes Molina EJ, Celis Sánchez J, Tenias Burilllo JM, Diaz Valle D, Benítez-Del-Castillo JM, Mesa Varona D, Avendaño-Cantos E.
    Journal: Eur J Ophthalmol; 2019 May; 29(3):295-303. PubMed ID: 30175617.
    Abstract:
    PURPOSE: To compare visual, topographic and topometric outcomes in patients subjected to deep anterior lamellar keratoplasty or penetrating keratoplasty showing a high or low risk of graft rejection. SETTING: Complejo Hospitalario La Mancha Centro, Ciudad Real, Spain. MATERIALS AND METHODS: Data were reviewed for consecutive patients with a corneal stroma disease undergoing deep anterior lamellar keratoplasty or penetrating keratoplasty over the period 2009-2015 at our centre by the same surgeon. The outcome measures examined were 2-year follow-up best-corrected visual acuity, refractive error, topographic astigmatism, intraocular pressure, endothelial cell density and central corneal thickness. RESULTS: Of 115 eyes enrolled, 46 underwent deep anterior lamellar keratoplasty (15 low risk, 31 high risk) and 69 penetrating keratoplasty (23 low risk, 46 high risk). Mean postoperative best-corrected visual acuity (logMAR) in the low- and high-risk groups, respectively, were 0.31 and 0.26 for deep anterior lamellar keratoplasty (p = 0.32) and 0.40 and 0.51 for penetrating keratoplasty (p = 0.28). The values for the high-risk deep anterior lamellar keratoplasty versus high-risk penetrating keratoplasty patients were 0.26 and 0.51, respectively (p = 0.004). Mean postoperative spherical equivalents were -2.60 D for low-risk deep anterior lamellar keratoplasty versus -2.29 D for high-risk deep anterior lamellar keratoplasty (p = 0.19), and -0.41 D for low-risk penetrating keratoplasty versus -0.13 D for high-risk penetrating keratoplasty (p = 0.51). CONCLUSION: Final best-corrected visual acuity and visual acuity gains were better for deep anterior lamellar keratoplasty, mainly in corneas with a high rejection risk. Despite a better corneal thickness recorded in the deep anterior lamellar keratoplasty group, the other variables examined were comparable. Deep anterior lamellar keratoplasty emerged as an effective alternative to penetrating keratoplasty for patients with a disease affecting the corneal stroma.
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