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Comparative Study
. 2024 Aug 15;44(1):349.
doi: 10.1007/s10792-024-03265-9.

Comparative analysis of surgically induced astigmatism following cataract surgery: influence of previous myopic correction and corneal parameters

Alessandro Mularoni  1 , Purva Date  2 , Paola Bannò  3 , Teresio Avitabile  3 , Eleonora Benedetta Marcheggiani  1 , Matteo Forlini  1
Affiliations
Comparative Study

Comparative analysis of surgically induced astigmatism following cataract surgery: influence of previous myopic correction and corneal parameters

Alessandro Mularoni et al. Int Ophthalmol. .

Abstract

Purpose: This retrospective study investigated the impact of corneal parameters on surgically induced astigmatism (SIA) in eyes with prior myopic correction undergoing cataract surgery.

Setting: Department of Ophthalmology, San Marino Hospital, San Marino, Republic of San Marino.

Design: This case-control study analyzed existing data retrospectively, without randomization or masking.

Methods: Eighty eyes divided in group 1 (40 eyes previous underwent refractive surgery for myopia) and group 2 ( 40 myopic eyes) that underwent cataract surgery with intraocular lens (IOL) implantation were included. SIA was calculated using values from the IOL Master Zeiss 700 and mean pupil power (MPP) derived from the CSO Sirius Topographer (based on 3 mm pupil size) with vectorial analysis from doctor Hill software.

Results: No significant difference in SIA was observed between eyes with prior myopic photorefractive keratectomy and the control group (p > 0.05). SIA calculations using the IOL Master and CSO Sirius Tomographer yielded similar results. There was no significant correlation between SIA and axial length, corneal curvature, peripheral corneal thickness, or anterior chamber depth (p > 0.05). However, an inverse correlation was found between SIA and horizontal corneal diameter (p < 0.05).

Conclusions: Corneal parameters, such as axial length, corneal curvature, peripheral corneal thickness, and anterior chamber depth, showed no significant influence on SIA. The inverse correlation between SIA and horizontal corneal diameter in study group suggests potential influence of white-to-white distance on SIA. These findings highlight the importance of considering corneal parameters for optimizing surgical outcomes.

Keywords: Cataract surgery; Corneal parameters; Keratometry; Myopic correction; Surgically induced astigmatism.

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References

    1. Nichamin LD (2003) Treating astigmatism at the time of cataract surgery. Curr Opin Ophthalmol 14(1):35–38. https://doi.org/10.1097/00055735-200302000-00006 - DOI - PubMed
    1. Amesbury EC, Miller KM (2009) Correction of astigmatism at the time of cataract surgery. Curr Opin Ophthalmol 20(1):19–24 - DOI - PubMed
    1. Rho CR, Joo CK (2012) Effects of steep meridian incision on corneal astigmatism in phacoemulsification cataract surgery. J Cataract Refract Surg 38(4):666–671 - DOI - PubMed
    1. Tejedor J, Murube J (2005) Choosing the location of corneal incision based on preexisting astigmatism in phacoemulsification. Am J Ophthalmol 139(5):767–776 - DOI - PubMed
    1. Kohnen T, Koch DD (1996) Methods to control astigmatism in cataract surgery. Curr Opin Ophthalmol 7(1):75–80 - DOI - PubMed

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