Correlation analysis of visual field thresholds and scanning laser ophthalmoscopic optic nerve head measurements in glaucoma

Vikas Gulati, Harish C. Agarwal, Ramanjit Sihota, Rohit Saxena

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

In a cross-sectional study of 50 consecutive primary open-angle glaucoma cases, full threshold 30-2 visual fields on Humphrey Visual Field Analyser were correlated to stereometric parameters obtained using a scanning laser ophthalmoscope (HRT II). The strength of linear correlation between the stereometric parameters and visual thresholds was used to generate a correspondence map between the optic disc and the visual field. Rim/disc area ratio and cup/disc area ratio correlated with the visual thresholds at the highest number of points in the visual fields. Thresholds at superior hemifield locations correlated best with the rim/disc area ratio and cup/disc area ratio in the inferonasal sector and the ones in the inferior hemifield correlated best with the rim/disc area ratio and cup/disc area ratio in the superotemporal sector. Optic disc parameters correlated better with inferior field locations and non-edge points than superior field locations and edge points. The data indicate that rim/disc area ratio and cup/disc area ratio measurements on HRT II have a good correlation with visual field damage seen on automated visual fields.

Original languageEnglish (US)
Pages (from-to)233-242
Number of pages10
JournalOphthalmic and Physiological Optics
Volume23
Issue number3
DOIs
StatePublished - May 1 2003

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Keywords

  • Glaucoma
  • HRT 11
  • Humphrey Visual Field Analyser
  • Retinotopy
  • Scanning laser ophthalmoscope
  • Visual field

ASJC Scopus subject areas

  • Ophthalmology
  • Optometry
  • Sensory Systems

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