April 2014
Volume 55, Issue 13
Free
ARVO Annual Meeting Abstract  |   April 2014
The Visual FIeld Index (VFI) - Correlation with Mean Deviation (MD) and Visual Disability Parameters in Advanced Glaucoma
Author Affiliations & Notes
  • Syril Dorairaj
    Ophthalmology, Glaucoma Service, Mayo Clinic, Jacksonville, FL
  • Cornelius Nasser
    Ophthalmology, Glaucoma Service, Assaf Harofe Medical Center, Zerifin, Israel
  • Yaniv Barkana
    Ophthalmology, Glaucoma Service, Assaf Harofe Medical Center, Zerifin, Israel
  • Footnotes
    Commercial Relationships Syril Dorairaj, None; Cornelius Nasser, None; Yaniv Barkana, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science April 2014, Vol.55, 4301. doi:https://doi.org/
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Syril Dorairaj, Cornelius Nasser, Yaniv Barkana; The Visual FIeld Index (VFI) - Correlation with Mean Deviation (MD) and Visual Disability Parameters in Advanced Glaucoma. Invest. Ophthalmol. Vis. Sci. 2014;55(13):4301. doi: https://doi.org/.

      Download citation file:


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

      ×
  • Supplements
Abstract

Purpose: Visual field index (VFI) is a recently introduced summary parameter. Before it is widely adapted, it needs to be further characterized and compared with familiar indices used in glaucoma management, specifically mean deviation (MD). To characterize VFI in cases of advanced glaucoma by comparing it to MD and criteria of blindness according to the US Social Security and World Health Organization (WHO).

Methods: Visual fields of glaucoma patients with MD worse than -12 dB were prospectively included. VFI was compared to MD and criteria of blindness.

Results: Visual fields of 66 eyes of 54 patients were included. MD ranged from -12.15 to -31.4, VFI ranged from 0% to 76%. These parameters exhibited excellent correlation with R2=0.96. VFI corresponding to MD of -15 , -20, -22, and -25 was 55%, 40% , 35%, and 24% respectively. Correlation between VFI and the widest remaining central visual field diameter was only demonstrated in the later, more severe, stages of glaucoma.

Conclusions: VFI was found to be in excellent correlation with MD across the spectrum of glaucomatous visual loss. However, its “intuitive” presentation may underestimate the visual loss. We recommend that clinicians aim to keep VFI above 50-60% for the remainder of the patient’s lifetime in order to preserve functional vision.

Keywords: 758 visual fields • 460 clinical (human) or epidemiologic studies: health care delivery/economics/manpower • 495 depth  
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×