Torsional phacoemulsification: A pilot study to revise the "harm scale" evaluating the endothelial damage and the visual acuity after cataract surgery

PloS One
Francesco Saverio SorrentinoFrancesco Parmeggiani

Abstract

To study the effect of torsional phacoemulsification energy on corneal endothelium evaluating the relationship between changes of endothelial cells and postoperative visual acuity. This prospective clinical observational cohort study included 50 patients with cataract who underwent torsional phacoemulsification. Sequential quantitative and qualitative morphometric endothelial cell analyses of the cornea were performed four weeks preoperatively and six weeks postoperatively using noncontact specular microscopy. This work confirmed the strong relationship, described by a linear model (one-way ANOVA, R2 = 77.9%, P < 0.0001), between the percentage of endothelial cell loss (ECL%) and the 5-score harm scale. According to the Tukey post-hoc pairwise comparison test, distinct values of ECL% are grouped in 3 subsets. The value of ECL = 10% has been identified as cut-off to discriminate patients with excellent postoperative best-corrected visual acuity (BCVA > 85 letters) from those with just a good/satisfied visual outcome (BCVA ≤ 85 letters). Within the 5-score harm scale, there was a significant correlation among phaco energy intraoperatively delivered and the average endothelial cell loss. This study confirms the validity of the 5-s...Continue Reading

References

Jul 1, 1989·Archives of Ophthalmology·L T ChylackR Sperduto
Jun 1, 1985·Current Eye Research·R W YeeH F Edelhauser
Jan 25, 2002·Current Opinion in Ophthalmology·Howard V Gimbel, Carlindo da Reitz Pereira
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Apr 20, 2004·Journal of Cataract and Refractive Surgery·Paul D O'BrienStephen Beatty
May 24, 2008·Journal of Cataract and Refractive Surgery·James A Davison
Sep 29, 2009·Journal of Cataract and Refractive Surgery·Marek RekasTeresa Ferrer-Blasco
Feb 5, 2010·Ophthalmic Surgery, Lasers & Imaging : the Official Journal of the International Society for Imaging in the Eye·Abhay R VasavadaViraj Vasavada
Dec 3, 2011·Current Opinion in Ophthalmology·Noel Rosado-Adames, Natalie A Afshari

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Citations

Aug 3, 2019·Journal of Cataract and Refractive Surgery·Taru DewanRitu Kumari
Jan 20, 2021·Indian Journal of Ophthalmology·Sharmila RajendrababuLalitha Prajna

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Methods Mentioned

BETA
confocal microscopy

Software Mentioned

MINITAB

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