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Encyclopedia of Ophthalmology pp 1–3Cite as

Aberrometry

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Synonyms

Wavefront measurement; Wavefront sensing

Definition

Method for measurement, visualization, and analysis of the wavefront error of the eye.

Purpose

Aberrometry is used to quantify and visualize the wavefront error (monochromatic aberrations) of the eye.

Principle

The common principle of aberrometry is the comparison of a test figure imaged by the eye with a reference figure. From the difference, the wavefront error can be computed. The most widespread used aberrometer is the Hartmann-Shack sensor (Liang et al. 1994). This system uses a laser beam that is reflected by the retina. The reflected light emerging from the eye is refracted into a spot pattern by a microlens array. The image of the spot pattern is caught by a CCD camera (Fig. 1). The deviation of the spots from a reference pattern is proportional to the wavefront deformation. The aberrometer according to Tscherningprojects a spot matrix onto the fovea. The retinal image is documented by a CCD camera. Similar to...

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References

  • Liang J, Grimm B, Goelz S, Bille JF (1994) Objective measurement of wave aberrations of the human eye with the use of a Hartmann-Shack wave-front sensor. J Opt Soc Am A 11:1949–1957.

    Article  CAS  Google Scholar 

  • Montes-Mico R (2007) Role of the tear film in the optical quality of the human eye. J Cataract Refract Surg 33:1631–1635

    Article  PubMed  Google Scholar 

  • Thibos LN, Applegate RA, Schwiegerling JT, Webb R (2002) Standards for reporting the optical aberrations of eyes. J Refract Surg 18:S652–S660

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  • Zhu M, Collins MJ, Iskander RD (2004) Microfluctuations of wavefront aberrations of the eye. Ophthalmic Physiol Opt 24:562–571

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Author information

Authors and Affiliations

  1. Department of Ophthalmology, Goethe-University Frankfurt am Main, Frankfurt am Main, Germany

    Jens Bühren

Authors
  1. Jens Bühren
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Corresponding author

Correspondence to Jens Bühren .

Editor information

Editors and Affiliations

  1. Department of Ophthalmology and Optometry, Medical University Vienna, Vienna, Austria

    Ursula Schmidt-Erfurth

  2. Department of Ophthalmology, Goethe University of Frankfurt am Main, Frankfurt am Main, Germany

    Thomas Kohnen

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Cite this entry

Bühren, J. (2018). Aberrometry. In: Schmidt-Erfurth, U., Kohnen, T. (eds) Encyclopedia of Ophthalmology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69000-9_423

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  • DOI: https://doi.org/10.1007/978-3-540-69000-9_423

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-68292-9

  • Online ISBN: 978-3-540-69000-9

  • eBook Packages: MedicineReference Module Medicine

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