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The topographical relationship between optic disc and visual field in glaucoma.

J Weber1, F Dannheim, D Dannheim

  • 1Department of Ophthalmology, University of Cologne, FRG.

Acta Ophthalmologica
|October 1, 1990
PubMed
Summary

This study investigated glaucoma

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Area of Science:

  • Ophthalmology
  • Neuroscience

Background:

  • Glaucoma is a progressive optic neuropathy.
  • Focal damage in glaucoma affects the optic disc and nerve fiber layer.

Purpose of the Study:

  • To investigate the spatial relationship between optic disc anatomy and visual field function in glaucoma.
  • To correlate anatomical damage sites with functional deficits.

Main Methods:

  • Analysis of planimetric data from the optic disc in 15 glaucoma cases.
  • Evaluation of perimetric data using the 'Perimetric Nerve Fibre Bundle Map'.
  • Defining anatomical damage as the thinnest neuroretinal rim sector and functional damage as regions with >=50% depressed points.

Main Results:

  • A linear correlation was observed between the affected optic disc rim sector and corresponding Perimetric Nerve Fiber Bundle regions.
  • This correlation was noted particularly at the superior and inferior poles of the optic disc.
  • A 'functional disc map' was successfully established for 6 perimetric regions.

Conclusions:

  • The study demonstrates a spatial correlation between anatomical optic disc damage and functional visual field loss in glaucoma.
  • This correlation aids in understanding glaucoma progression and localization of damage.
  • The findings support the development of localized functional maps for glaucoma assessment.

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