A psychophysical investigation of ocular expansion in human eyes

Fuensanta A. Vera-Diaz, Paul V. McGraw, Niall C. Strang, David Whitaker

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


The purpose of this research was to investigate spatial anisotropies in the peripheral visual field of axially myopic eyes, in an attempt to distinguish between models of isotropic and anisotropic ocular stretching. Isotropic stretching, such as globe expansion, should preserve the aspect ratios of receptive fields, predicting a separation misperception which is independent of axial length. In contrast, the magnitude of the misperception is significantly correlated with axial length, supporting anisotropic stretching models of myopic growth.

Original languageEnglish
JournalInvestigative Ophthalmology & Visual Science
Publication statusPublished - 1 Feb 2005


  • ocular expansion
  • vision sciences
  • myopia


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