July 2018
Volume 59, Issue 9
Open Access
ARVO Annual Meeting Abstract  |   July 2018
Correlation between Refractive State, Corneal Thickness and Keratometry in Ametropic Patients
Author Affiliations & Notes
  • Amir Rosenblatt
    Opthalmology , Tel Aviv medical center, Tel Aviv, Israel
    Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
  • Michael Mimouni
    Department of Ophthalmology, Rambam Health Care Campus, Haifa, Israel
    Technion-Israel Institute of Technology, Haifa, Israel
  • Omer Trivizki
    Opthalmology , Tel Aviv medical center, Tel Aviv, Israel
    Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
  • David Varssano
    Opthalmology , Tel Aviv medical center, Tel Aviv, Israel
    Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
  • Gur Munzer
    Care Vision Refractive Surgery Facility, Tel Aviv, Israel
  • Tzahi Sela
    Care Vision Refractive Surgery Facility, Tel Aviv, Israel
  • Nir Sorkin
    Opthalmology , Tel Aviv medical center, Tel Aviv, Israel
    Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
  • Footnotes
    Commercial Relationships   Amir Rosenblatt, None; Michael Mimouni, None; Omer Trivizki, None; David Varssano, None; Gur Munzer, None; Tzahi Sela, None; Nir Sorkin, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science July 2018, Vol.59, 3372. doi:
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      Amir Rosenblatt, Michael Mimouni, Omer Trivizki, David Varssano, Gur Munzer, Tzahi Sela, Nir Sorkin; Correlation between Refractive State, Corneal Thickness and Keratometry in Ametropic Patients. Invest. Ophthalmol. Vis. Sci. 2018;59(9):3372.

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

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Abstract

Purpose : To analyze the correlation between age, gender, refractive error, keratometry and corneal thickness in a large group of subjects.

Methods : This study is a retrospective analysis of patients who underwent refractive surgery between January 2000 and February 2015 at Care Vision refractive clinic, Tel Aviv, Israel. Patient demographics, subjective refraction, pachymetry and average keratometry (AK) were collected.

Results : Overall, 51,113 eyes of patients averaging 28.8 ± 9.3 years of which 53.9% were males were included. AK, spherical error, cylindrical error, and SE differed significantly between male and female subjects (p<0.001), while pachymetry did not (p=0.332). In myopic eyes, correlations between age, pachymetry, AK, spherical error, cylindrical error, and SE were all statistically significant except for the correlation between age and either pachymetry (p=0.462) or SE (p=0.016). All correlations found were negligible (clinically insignificant) or small (|r|=0.003 to 0.141). In hyperopic eyes, correlations between age, pachymetry, AK, spherical error, cylindrical error, and SE were all statistically significant except for the correlation between AK and either pachymetry or cylindrical error (p=0.344 or p=0.274, respectively). All correlations found were negligible or small, except for a moderate correlation found between age and either spherical or cylindrical error (r=-0.329 or r=0.365, respectively).

Conclusions : This large data analysis described the correlations between refractive state, pachymetry and keratometry of refractive surgery candidates. More importantly, despite associations being statistically significant, most of them were of little clinical value. Future studies should put more emphasis on the clinical value when discussing such findings than on the statistical significance.

This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.

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