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Comparison of Wavelight Allegretto Eye-Q and Schwind Amaris 750S excimer laser in treatment of high astigmatism

PURPOSE: To compare functional outcomes of Wavelight Allegretto Eye-Q 400Hz and Schwind Amaris 750S excimer laser for astigmatism between 2 and 7 diopters(D). METHODS: Prospective comparative non-randomized case series of 480 eyes assigned in two laser groups and further divided into myopic and mixe...

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Autores principales: Bohac, Maja, Biscevic, Alma, Koncarevic, Mateja, Anticic, Marija, Gabric, Nikica, Patel, Sudi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4181506/
https://www.ncbi.nlm.nih.gov/pubmed/25150049
http://dx.doi.org/10.1007/s00417-014-2776-2
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author Bohac, Maja
Biscevic, Alma
Koncarevic, Mateja
Anticic, Marija
Gabric, Nikica
Patel, Sudi
author_facet Bohac, Maja
Biscevic, Alma
Koncarevic, Mateja
Anticic, Marija
Gabric, Nikica
Patel, Sudi
author_sort Bohac, Maja
collection PubMed
description PURPOSE: To compare functional outcomes of Wavelight Allegretto Eye-Q 400Hz and Schwind Amaris 750S excimer laser for astigmatism between 2 and 7 diopters(D). METHODS: Prospective comparative non-randomized case series of 480 eyes assigned in two laser groups and further divided into myopic and mixed astigmatism subgroups. All treatments were centered on corneal vertex. One-year results were compared between the groups. Statistical analysis was performed using z-test. RESULTS: Both Allegretto and Amaris postoperative uncorrected distance visual acuity (UDVA) improved in comparison to preoperative corrected distance visual acuity (CDVA). The difference was significant in the Allegretto group for myopic astigmatism (p = 0.017). There was no difference in postoperative UDVA between lasers. Average sphere decreased in all groups for both lasers (p < 0.001) without difference in effectiveness of spherical correction between lasers for both groups. In Allegretto, average cylinder decreased from −3.30D to −0.55D in myopic astigmatism (p < 0.001) and from −3.84D to −0.85D in mixed astigmatism (p < 0.001). In Amaris average cylinder decreased from −3.21D to −0.43D in myopic astigmatism (p < 0.001) and from −3.66D to −0.58D in mixed astigmatism (p < 0.001). Amaris group had less residual astigmatism (myopic astigmatism p = 0.023, mixed astigmatism p < 0.001). Mean spherical aberration shifted from positive to negative in mixed astigmatism for both lasers. CONCLUSION: Both lasers are effective in terms of UDVA, CDVA, spherical correction, and preservation of high-order aberrations. However, Amaris was more effective in cylinder correction.
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spelling pubmed-41815062014-10-08 Comparison of Wavelight Allegretto Eye-Q and Schwind Amaris 750S excimer laser in treatment of high astigmatism Bohac, Maja Biscevic, Alma Koncarevic, Mateja Anticic, Marija Gabric, Nikica Patel, Sudi Graefes Arch Clin Exp Ophthalmol Refractive Surgery PURPOSE: To compare functional outcomes of Wavelight Allegretto Eye-Q 400Hz and Schwind Amaris 750S excimer laser for astigmatism between 2 and 7 diopters(D). METHODS: Prospective comparative non-randomized case series of 480 eyes assigned in two laser groups and further divided into myopic and mixed astigmatism subgroups. All treatments were centered on corneal vertex. One-year results were compared between the groups. Statistical analysis was performed using z-test. RESULTS: Both Allegretto and Amaris postoperative uncorrected distance visual acuity (UDVA) improved in comparison to preoperative corrected distance visual acuity (CDVA). The difference was significant in the Allegretto group for myopic astigmatism (p = 0.017). There was no difference in postoperative UDVA between lasers. Average sphere decreased in all groups for both lasers (p < 0.001) without difference in effectiveness of spherical correction between lasers for both groups. In Allegretto, average cylinder decreased from −3.30D to −0.55D in myopic astigmatism (p < 0.001) and from −3.84D to −0.85D in mixed astigmatism (p < 0.001). In Amaris average cylinder decreased from −3.21D to −0.43D in myopic astigmatism (p < 0.001) and from −3.66D to −0.58D in mixed astigmatism (p < 0.001). Amaris group had less residual astigmatism (myopic astigmatism p = 0.023, mixed astigmatism p < 0.001). Mean spherical aberration shifted from positive to negative in mixed astigmatism for both lasers. CONCLUSION: Both lasers are effective in terms of UDVA, CDVA, spherical correction, and preservation of high-order aberrations. However, Amaris was more effective in cylinder correction. Springer Berlin Heidelberg 2014-08-23 2014 /pmc/articles/PMC4181506/ /pubmed/25150049 http://dx.doi.org/10.1007/s00417-014-2776-2 Text en © The Author(s) 2014 https://creativecommons.org/licenses/by/4.0/ Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
spellingShingle Refractive Surgery
Bohac, Maja
Biscevic, Alma
Koncarevic, Mateja
Anticic, Marija
Gabric, Nikica
Patel, Sudi
Comparison of Wavelight Allegretto Eye-Q and Schwind Amaris 750S excimer laser in treatment of high astigmatism
title Comparison of Wavelight Allegretto Eye-Q and Schwind Amaris 750S excimer laser in treatment of high astigmatism
title_full Comparison of Wavelight Allegretto Eye-Q and Schwind Amaris 750S excimer laser in treatment of high astigmatism
title_fullStr Comparison of Wavelight Allegretto Eye-Q and Schwind Amaris 750S excimer laser in treatment of high astigmatism
title_full_unstemmed Comparison of Wavelight Allegretto Eye-Q and Schwind Amaris 750S excimer laser in treatment of high astigmatism
title_short Comparison of Wavelight Allegretto Eye-Q and Schwind Amaris 750S excimer laser in treatment of high astigmatism
title_sort comparison of wavelight allegretto eye-q and schwind amaris 750s excimer laser in treatment of high astigmatism
topic Refractive Surgery
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4181506/
https://www.ncbi.nlm.nih.gov/pubmed/25150049
http://dx.doi.org/10.1007/s00417-014-2776-2
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