2004
DOI: 10.1097/00003226-200405000-00006
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Same-Size Donor Corneas for Myopic Keratoconus

Abstract: Using same-size donor grafts in keratoconus patients with a long visual axis is a safe and effective procedure in reducing postoperative myopia.

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Cited by 28 publications
(24 citation statements)
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“…This postoperative myopia was shown to be associated with graft button size, 3 suture technique, 1,2 time after suture removal, and axial length. [26][27][28] In order to assess the realism of the simulated post-PK results in Figure. 2, we collected all articles reporting mean and SD of the refraction or keratometry after full PK with a donor button either larger or the same size as the opening in the acceptor cornea (see Table, Supplemental Digital Content 1, http://links.lww.com/ICO/A397). For both graft types, the weighted mean of these parameters led to refractive values that were about 1.25D more myopic, and keratometry about 1.30D steeper than the corresponding values of our healthy cohort, which corresponds very well with the results of the simulation.…”
Section: Myopia After Pkmentioning
confidence: 99%
“…This postoperative myopia was shown to be associated with graft button size, 3 suture technique, 1,2 time after suture removal, and axial length. [26][27][28] In order to assess the realism of the simulated post-PK results in Figure. 2, we collected all articles reporting mean and SD of the refraction or keratometry after full PK with a donor button either larger or the same size as the opening in the acceptor cornea (see Table, Supplemental Digital Content 1, http://links.lww.com/ICO/A397). For both graft types, the weighted mean of these parameters led to refractive values that were about 1.25D more myopic, and keratometry about 1.30D steeper than the corresponding values of our healthy cohort, which corresponds very well with the results of the simulation.…”
Section: Myopia After Pkmentioning
confidence: 99%
“…9 After excising the recipient corneas, donor corneas were placed and secured using a suturing technique similar to that used for DALK. …”
Section: Penetrating Keratoplastymentioning
confidence: 99%
“…Ainda que não seja considerado um procedimento cirúrgico refrativo, muitos esforços estão sendo feitos para reduzir a miopia residual manipulando o tamanho da córnea doadora (3,15) . A miopia esférica pós-operatória, em parte, pode ser atribuída a um excessivo poder corneano causado pelo uso de córneas doadoras maiores em diâmetro que o leito receptor.…”
Section: Gráficounclassified
“…Tal prática foi introduzida visando reduzir a incidência de vazamentos pela ferida operatória e glaucoma no pós-operatório (3,9,16,17) . Diversos estudos mostraram que o equivalente esférico miópico é significativamente reduzido quando a ceratoplastia é realizada com trepanações de botão doador do mesmo tamanho do receptor (15,16,(18)(19)(20) . Utilizando diâmetro de doador menor que o receptor, podemos diminuir parcialmente a miopia pela indução de curvatura mais plana no transplante utilizando um enxerto de diâmetro menor.…”
Section: Gráficounclassified
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