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Corneal higher-order aberrations after phacoemulsification: a comparison of 3 different incision sizes

Corneal higher-order aberrations after phacoemulsification: a comparison of 3 different incision sizes

Eur J Ophthalmol 2017; 27(4): 402 - 406

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/ejo.5000881

Authors

Christoph von Sonnleithner, Daniel Pilger, David Homburg, Tobias Brockmann, Necip Torun, Eckart Bertelmann

Abstract

Purpose

To analyze the impact of different incision sizes for phacoemulsification on corneal higher-order aberrations (HOA).

Methods

Patients seeking cataract surgery were randomly assigned to one of the following groups: 1.4 mm with biaxial microincision phacoemulsification (25 eyes), 1.8 mm with coaxial phacoemulsification (27 eyes), and 2.2 mm with coaxial phacoemulsification (62 eyes). Inclusion criteria were a minimum age of 18 years and uncomplicated cataract. Exclusion criteria were history of ocular trauma or intraocular surgery, any sign of inflammation or infection, pseudoexfoliation syndrome, glaucoma, optic atrophy, diabetic retinopathy, lens dislocation, cataracta intumescens, cataracta matura, and corneal diseases. Patients underwent phacoemulsification with implantation of an intraocular lens. Aberrometry was performed using an iTrace aberrometer with a pupil scan size of 5.0 mm preoperatively and at postoperative follow-up visits after 1 month. The paired sample t test and analysis of covariance were used for statistical analysis.

Results

Ninety patients (114 eyes) were enrolled (mean age 73.7 ± 8.9 years). In all groups, an increase of total HOAs could be measured. The strongest increase was seen in the 2.2 mm group (mean difference 0.031 [95% confidence interval (CI) 0.006-0.056], p = 0.014) and in the 1.4 mm group (mean difference 0.035 [95% CI -0.007 to 0078], p = 0.097). No important difference was found in the 1.8 mm group.

Conclusions

The 2.2 mm and the 1.4 mm incisions seem to have a higher impact on corneal HOAs in comparison to the 1.8 mm incision.

Article History

Disclosures

Financial support: No financial support was received for this submission.
Conflict of interest: None of the authors has conflict of interest with this submission.
Meeting presentation: Poster presentation at the congress of the German Ophthalmological Society (DOG); 1-4 October 2015, Berlin, Germany.

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Authors

Affiliations

  • Department of Ophthalmology, Charité-Medical University Berlin, Campus Virchow, Berlin - Germany
  • Christoph von Sonnleithner and Daniel Pilger contributed equally to this work.

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