May 2004
Volume 45, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2004
Comparison between GDx VCC and white on white perimetry in glaucoma patients
Author Affiliations & Notes
  • A. Perdicchi
    Ospedale Sant Andrea, Univ of Rome – La Sapienza II, Rome, Italy
  • M.M. Iester
    Clinica Oculistica, University of Genova, Genoa, Italy
  • E. Fiesoletti
    Ospedale Sant Andrea, Univ of Rome – La Sapienza II, Rome, Italy
  • A. Bagnis
    Clinica Oculistica, University of Genova, Genoa, Italy
  • G. Prigione
    Clinica Oculistica, University of Genova, Genoa, Italy
  • G.A. Calabria
    Clinica Oculistica, University of Genova, Genoa, Italy
  • E. Leonardi
    Ospedale Sant Andrea, Univ of Rome – La Sapienza II, Rome, Italy
  • Footnotes
    Commercial Relationships  A. Perdicchi, None; M.M. Iester, None; E. Fiesoletti, None; A. Bagnis, None; G. Prigione, None; G.A. Calabria, None; E. Leonardi, None.
  • Footnotes
    Support  none
Investigative Ophthalmology & Visual Science May 2004, Vol.45, 3346. doi:
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      A. Perdicchi, M.M. Iester, E. Fiesoletti, A. Bagnis, G. Prigione, G.A. Calabria, E. Leonardi; Comparison between GDx VCC and white on white perimetry in glaucoma patients . Invest. Ophthalmol. Vis. Sci. 2004;45(13):3346.

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

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Abstract

Abstract: : Purpose: To evaluate the relationship between GDx VCC parameters and white on white visual field indices. Methods: Eighty consecutive glaucomatous patients were recruited in this study. Glaucomatous patients were classified when an abnormal visual field and/or an abnormal optic disc was present. One eye was chosen randomly from all the subjects. All ONHs were examined with the GDx VCC (Laser Diagnostic Technologies, Inc, San Diego, CA, USA) and visual fields were assessed by Humphrey Perimeter, program 24–2 (Humphrey Instrument, Inc, San Leandro, CA, USA). GDx parameters and visual field indices were considered and Pearson’s r correlation coefficient was used to compare the data. A linear regression model was also calculated to evaluate the independent contribution of each GDx VCC parameters. Results: The mean age (+/– standard deviation) was 62.4 +/– 10.4, the average of the mean deviation (MD) was –2.36 +/– 2.8 and the mean pattern standard deviation (PSD) was 3.32 +/– 2.6. Significant correlation was found between MD and the number (r=0.26) and between MD and the superior average (r=–0.34). The linear regression model found the number to be the predictor variable of MD (Beta 0.41, p=0.026). Significant correlation was also found between PSD and the number (r=0.39) and between PSD and the superior average (r=–0.32). The linear regression model found the number to be the predictor variable of PSD (Beta 0.45, p=0.014). Conclusions:GDx VCC was significantly correlated to visual field indices even in early glaucomatous patients. The number is still the best indicator of visual field damage.

Keywords: imaging/image analysis: clinical • nerve fiber layer • visual fields 
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