May 2008
Volume 49, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2008
Comparative Study of Induced Corneal Astigmatism After 2.2 Mm and 3.3 Mm Incisions in Coaxial Phacoemulsification Cataract Surgery
Author Affiliations & Notes
  • F.-X. Brousseaud
    CHNO des Quinze-Vingts, Paris, France
  • B. Dufay Dupar
    CHNO des Quinze-Vingts, Paris, France
  • O. Laplace
    CHNO des Quinze-Vingts, Paris, France
  • R. Adam
    CHNO des Quinze-Vingts, Paris, France
  • O. Touzeau
    CHNO des Quinze-Vingts, Paris, France
  • T. Rodallec
    CHNO des Quinze-Vingts, Paris, France
  • J.-P. Nordman
    CHNO des Quinze-Vingts, Paris, France
  • Footnotes
    Commercial Relationships  F. Brousseaud, None; B. Dufay Dupar, None; O. Laplace, None; R. Adam, None; O. Touzeau, None; T. Rodallec, None; J. Nordman, None.
  • Footnotes
    Support  None.
Investigative Ophthalmology & Visual Science May 2008, Vol.49, 379. doi:https://doi.org/
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      F.-X. Brousseaud, B. Dufay Dupar, O. Laplace, R. Adam, O. Touzeau, T. Rodallec, J.-P. Nordman; Comparative Study of Induced Corneal Astigmatism After 2.2 Mm and 3.3 Mm Incisions in Coaxial Phacoemulsification Cataract Surgery. Invest. Ophthalmol. Vis. Sci. 2008;49(13):379. doi: https://doi.org/.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: : To compare surgical induced astigmatism (SIA) after 2.2 mm and 3.0 mm supero-oblique clear corneal coaxial phacoemulsification (PKE) cataract incision.

Methods: : All eyes having supero-oblique PKE cataract surgery using the right hand of a single surgeon were prospectively included. There were 49 eyes (25 right eyes and 24 left eyes) of 49 consecutive patients ( 20 PKE with 2.2 mm incision and 29 with 3 mm incision). Keratometry and BCVA were performed preoperatively and 1 month postoperatively (M1). A method of vector analysis was used for studying SIA.

Results: : Induced astigmatism at M1 was 0.35 diopter (D) in the 2.2 mm group and 0.26 D in the 3.0 mm group. Induced astigmatism was not statistically different between the two groups (Δx (p= 0.191) and Δy (p=0.411). There was no difference between right and left eyes in the 2.2 mm group (p= 0.269) and the 3.0 mm group (p= 0.102). BCVA was also not different between the two groups at M1(p= 0.266).

Conclusions: : No difference was found between the 2 groups but, using graphical analysis, SIA seems to be more predictable with 2.2 mm incisions. Furthermore, making a supero-oblique clear corneal PKE incision does not induce different SIA between right and left eyes.

Keywords: astigmatism • small incision cataract surgery • cataract 
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