June 2013
Volume 54, Issue 15
Free
ARVO Annual Meeting Abstract  |   June 2013
Prevalence of Corneal Astigmatism in a Cataract Population
Author Affiliations & Notes
  • David Curragh
    Ophthalmology, NIMDTA, Belfast, United Kingdom
    Ophthalmology, Western Health and Social Care Trust, Londonderry, United Kingdom
  • Patrick Hassett
    Ophthalmology, Western Health and Social Care Trust, Londonderry, United Kingdom
  • Footnotes
    Commercial Relationships David Curragh, None; Patrick Hassett, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2013, Vol.54, 860. doi:https://doi.org/
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      David Curragh, Patrick Hassett; Prevalence of Corneal Astigmatism in a Cataract Population. Invest. Ophthalmol. Vis. Sci. 2013;54(15):860. doi: https://doi.org/.

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

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Abstract

Purpose: To determine the prevalence of corneal astigmatism in a cataract population to aid cataract surgeons with their options for correcting astigmatism and assess the demand for toric intraocular lenses.

Methods: Keratometric data was collected for all patients who attended for routine cataract surgery at two different sites between January 2008 and December 2011. Data was analysed retrospectively.

Results: Data was complied for 1105 eyes of 941 patients. Results revealed a mean corneal astigmatism of 1.13 ± 0.91. The corneal astigmatism was 0.50D or less in 283 eyes (25.6%), between 0.51 D and 1.00 D in 374 (38%) and between 1.01 and 1.50D in 193 eyes (17.5%). It was 1.50D or less in 850 eyes (76.9%) and more than 2.00 D in 138 eyes (12.5%), more than 2.50 D in 80 eyes (7.24%), more than 3.00D in 41 eyes (3.71%) and more than 3.50 D in 28 eyes (2.53%).

Conclusions: Of patients selected for routine cataract surgery, 40.5% of eyes had more than 1.00 D of corneal astigmatism and 12.5% had more and 2.00D. 3.7% had more than 3.00D and 2.53% had more than 3.50D of corneal astigmatism. This shows the potential demand for toric intraocular lens insertion in this population.

Keywords: 428 astigmatism • 445 cataract • 567 intraocular lens  
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