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Microperimetry and Multimodal Retinal Imaging pp 5–11Cite as

Retinal Fixation and Microperimetry

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Abstract

Microperimeters record the preferred retinal locus (PRL) for fixation and fixation stability during a standard examination. Data from over 1,500 people with central scotomas due to macular disease indicate that the majority use a PRL below or to the left of their scotomas (in visual field space). Theoretical considerations suggest that reading speed should suffer for PRLs to the left, but reading performance data indicate that PRL location has little effect on reading speed. Fixation stability, on the other hand, has a significant impact on reading, with both cross-sectional and longitudinal studies demonstrating higher reading speeds for patients with more stable fixation. There is some suggestion that reducing fixation instability, either by compensating for eye movements with a gaze contingent display or by training eccentric fixation, can improve reading performance in people with macular disease, but further evidence is needed to establish when eccentric viewing training or automatic compensation for fixation instability is beneficial.

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Acknowledgements

GS Rubin is supported by a programme grant from fight for sight.

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Authors and Affiliations

  1. Moorfields Eye Hospital NHS Foundation Trust, London, UK

    Michael Crossland PhD

  2. Vision and Eye Research Unit, Anglia Ruskin University, Cambridge, UK

    Michael Crossland PhD

  3. UCL Institute of Ophthalmology, 11-43 Bath Street, London, EC1V 9EL, UK

    Gary S. Rubin PhD

  4. NIHR Biomedical Research Centre for Ophthalmology, London, UK

    Gary S. Rubin PhD

Authors
  1. Michael Crossland PhD
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  2. Gary S. Rubin PhD
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Correspondence to Gary S. Rubin PhD .

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Editors and Affiliations

  1. Department of Ophthalmology, University of Padova, Padova, Italy

    Edoardo Midena

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© 2014 Springer-Verlag Berlin Heidelberg

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Crossland, M., Rubin, G.S. (2014). Retinal Fixation and Microperimetry. In: Midena, E. (eds) Microperimetry and Multimodal Retinal Imaging. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40300-2_2

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  • DOI: https://doi.org/10.1007/978-3-642-40300-2_2

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-40299-9

  • Online ISBN: 978-3-642-40300-2

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