A cluster analysis for threshold perimetry

Balwantray C. Chauhan, Stephen M. Drance, Calvin Lai

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

26 Citas (Scopus)

Resumen

Cluster analysis in perimetry is a technique used in the evaluation of localised visual field loss. It has previously been applied to suprathreshold data and, unlike the indices currently available to indicate localised loss, it is influenced by the relative positions of individual defects. This paper describes a cluster analysis for use with data from Program 31 of the Octopus perimeter. To demonstrate the technique, sensitivity values of normal 60-year-old subject were altered to simulate localised loss. Illustrative examples of clinical cases are given, showing differing degrees of localised loss that do not influence the corrected loss variance (CLV) but influence the computed cluster parameters. It is hoped that the value of this form of analysis will be demonstrated in clinical follow-up of glaucoma patients.

Idioma originalEnglish
Páginas (desde-hasta)216-220
Número de páginas5
PublicaciónGraefe's Archive for Clinical and Experimental Ophthalmology
Volumen227
N.º3
DOI
EstadoPublished - may. 1989
Publicado de forma externa

ASJC Scopus Subject Areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

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