Comparison of Anterior and Posterior Corneal Surface Irregularity in Descemet Stripping Automated Endothelial Keratoplasty and Penetrating Keratoplasty

Cornea ◽  
2010 ◽  
Vol 29 (10) ◽  
pp. 1086-1090 ◽  
Author(s):  
Takefumi Yamaguchi ◽  
Kazuno Negishi ◽  
Kazuko Yamaguchi ◽  
Murat Dogru ◽  
Yuichi Uchino ◽  
...  
Keyword(s):  
Penetrating Keratoplasty ◽  
Surface Irregularity ◽  
Endothelial Keratoplasty ◽  
Corneal Surface

scholarly journals Postkeratoplasty Anterior and Posterior Corneal Surface Wavefront Analysis: Descemet’s Stripping Automated Endothelial Keratoplasty versus Penetrating Keratoplasty

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Maria L. Salvetat ◽  
Marco Zeppieri ◽  
Flavia Miani ◽  
Paolo Brusini
Keyword(s):  
Penetrating Keratoplasty ◽  
Imaging System ◽  
Case Series ◽  
Optical Quality ◽  
Endothelial Keratoplasty ◽  
Corneal Surface ◽  
Scheimpflug Imaging ◽  
Quality Of Vision ◽  
Range Test

Purpose. To compare the higher-order aberrations (HOAs) due to the anterior and posterior corneal surfaces in patients that underwent either Descemet-stripping-automated-endothelial-keratoplasty (DSAEK) or penetrating keratoplasty (PK) for endothelial dysfunction and age-matched controls. Methods. This retrospective, observational, case series included 28 patients after PK, 30 patients after DSAEK, and 30 healthy controls. A Scheimpflug imaging system was used to assess the HOAs due to the anterior and posterior corneal surfaces at 4 mm and 6 mm optical zones. Total, 3rd and 4th order HOAs were considered. Intra- and intergroup differences were assessed using the Friedman and the Kruskal-Wallis tests, respectively; paired comparisons were performed using Duncan's multiple range test. Results. Total, 3rd and 4th order HOAs due to both corneal surfaces at 4 mm and 6 mm optical zones were significantly higher in the PK group, intermediate in the DSAEK group, and lower in controls (). The most important HOAs components in both PK and DSAEK groups were trefoil and coma from the anterior corneal surface () and trefoil from the posterior corneal surface (). Conclusions. The optical quality of both corneal surfaces appeared significantly higher after DSAEK than after PK, which can increase the postoperative patient's quality of vision and satisfaction.

Descemet-stripping Automated Endothelial Keratoplasty—A Review

2011 ◽  
Vol 04 (01) ◽  
pp. 80
Author(s):  
Anita M Hwang ◽  
Jimmy K Lee ◽  
◽  
Keyword(s):  
Penetrating Keratoplasty ◽  
Surgical Techniques ◽  
Bullous Keratopathy ◽  
Endothelial Keratoplasty ◽  
Descemet Membrane Endothelial Keratoplasty ◽  
Corneal Surface ◽  
Visual Rehabilitation ◽  
Descemet Membrane ◽  
Structural Recovery ◽  
Corneal Endothelial Dysfunction

Descemet-stripping automated endothelial keratoplasty (DSAEK) has become the procedure of choice to treat corneal endothelial dysfunction. The technique involves replacing the diseased host endothelium with a graft consisting of a thin layer of posterior stroma, Descemet membrane, and endothelium. In comparison to penetrating keratoplasty (PK), DSAEK confers quicker visual and structural recovery with absence of corneal surface incisions or sutures, and limits astigmatism. DSAEK has been proved to successfully achieve favorable visual acuity and graft clarity in bullous keratopathy, posterior polymorphous dystrophy, and failed PK grafts. This article discusses various DSAEK surgical techniques, short- and longterm post-surgical results, complications, and comparisons with other types of keratoplasty. With the advent of Descemet membrane endothelial keratoplasty (DMEK), in which only Descemet membrane is transplanted, visual rehabilitation may be attained sooner.

scholarly journals The comorbidity of keratoconus and Fuchs' endothelial corneal dystrophy (clinical cases)

2021 ◽  
pp. 95-103
Author(s):  
B.E. Malyugin ◽  
◽  
O.P. Antonova ◽  
Z.R. Ebzeeva ◽  
◽  
...  
Keyword(s):  
Penetrating Keratoplasty ◽  
Anterior Segment ◽  
Surgical Techniques ◽  
Central Zone ◽  
Corneal Dystrophy ◽  
Surface Irregularity ◽  
Endothelial Keratoplasty ◽  
Visual Rehabilitation ◽  
The Third ◽  
Clinical Cases

Purpose. To describe the clinical cases and surgery results in patients with concomitant of keratoconus and Fuchs' corneal endothelial dystrophy. Material and methods. Retrospective analysis of 3 patients using different surgical techniques. All patients were female, they underwent diagnostic procedures including: keratotopography, optical coherence tomography of the anterior segment of the eye, Scheimpflug keratotomography, endothelial microscopy. First patient underwent penetrating keratoplasty (PKP), the second one – descemet stripping automated endothelial keratoplasty (DSEK), and the third one – descemet membrane endothelial keratoplasty (DMEK). Results. In all cases the combination of keratoconus and fuchs endothelial corneal dystrophy occurred in one eye, while cornea guttata was observed in both eyes. The diagnosis of keratoconus was complicated by the presence of corneal edema due to endothelial dysfunction. As a result, visual rehabilitation was achieved in 2 patients after PKP and DSEK, and in the third case (DMEK), the presence of pronounced opacities of the stroma in the central zone did not result in increase of visual acuity, despite the good function of the graft endothelium, which required the PKP. Conclusion. Surgical tactics should be based primary on the replacement of the pathologically altered endothelial monolayer (DSEK, DMEK). As for the simultaneous replacement of the corneal stroma (PKP), the decision is based on the progression of keratoconus, the degree of corneal thinning, and the presence of its surface irregularity. Key words: Fuchs' endothelial corneal dystrophy, keratoconus, endothelial keratoplasty, penetrating keratoplasty, Descemet's membrane endothelial keratoplasty, corneal endothelium

Effect of anterior and posterior corneal surface irregularity on vision after Descemet-stripping endothelial keratoplasty

2009 ◽  
Vol 35 (4) ◽  
pp. 688-694 ◽  
Author(s):  
Takefumi Yamaguchi ◽  
Kazuno Negishi ◽  
Kazuko Yamaguchi ◽  
Dogru Murat ◽  
Yuichi Uchino ◽  
...  
Keyword(s):  
Surface Irregularity ◽  
Endothelial Keratoplasty ◽  
Corneal Surface ◽  
Descemet Stripping Endothelial Keratoplasty

scholarly journals Descemet membrane suturing to manage recurrent graft detachment in a patient with Descemet membrane endothelial keratoplasty on failed penetrating keratoplasty

2021 ◽  
Vol 13 ◽  
pp. 251584142110277
Author(s):  
Zahra Ashena ◽  
Thomas Hickman-Casey ◽  
Mayank A. Nanavaty
Keyword(s):  
Visual Acuity ◽  
Penetrating Keratoplasty ◽  
Anterior Segment ◽  
Endothelial Keratoplasty ◽  
Descemet Membrane Endothelial Keratoplasty ◽  
Descemet Membrane ◽  
Ocular Coherence Tomography ◽  
Corrected Visual Acuity ◽  
Intracameral Injection ◽  
History Of

A 65-year-old patient with history of keratoconus, mild cataract and penetrating keratoplasty over 30 years ago developed corneal oedema subsequent of graft failure with best corrected visual acuity (BCVA) of counting fingers. He underwent a successful cataract surgery combined with a 7.25 mm Descemet’s Membrane Endothelial Keratoplasty (DMEK) with Sodium Hexafluoride (SF6) gas. His cornea remained oedematous inferiorly at 4 weeks, despite two subsequent re-bubbling due to persistent DMEK detachment inferiorly. This was managed by three radial full thickness 10-0 nylon sutures placed in the inferior cornea along with intracameral injection of air. Following this, his anterior segment ocular coherence tomography (OCT) confirmed complete attachment of the graft, and the sutures were removed 4 weeks later. Unaided visual acuity was 20/63 and BCVA was 20/32 after 8 months. DMEK suturing can be helpful in persistent DMEK detachments, which is refractory to repeated re-bubbling due to uneven posterior surface of previous PK.

Descemet Stripping Automated Endothelial Keratoplasty Under Failed Penetrating Keratoplasty: How to Avoid Complications

2011 ◽  
Vol 151 (2) ◽  
pp. 187-188.e2 ◽  
Author(s):  
Francis W. Price ◽  
Marianne O. Price ◽  
Anshu Arundhati
Keyword(s):  
Penetrating Keratoplasty ◽  
Endothelial Keratoplasty

Endothelial Keratoplasty Using Donor Tissue Not Suitable for Full-Thickness Penetrating Keratoplasty

Cornea ◽  
2007 ◽  
Vol 26 (5) ◽  
pp. 515-519 ◽  
Author(s):  
Rebecca L Armour ◽  
Paula J Ousley ◽  
Jennifer Wall ◽  
Karen Hoar ◽  
Chris Stoeger ◽  
...  
Keyword(s):  
Penetrating Keratoplasty ◽  
Endothelial Keratoplasty ◽  
Full Thickness ◽  
Donor Tissue
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