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Fluctuations in accommodation: a review

Charman, W.N., Heron, G.·1988·Ophthalmic and Physiological Optics
DOI 10.1111/j.1475-1313.1988.tb01031.x
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Abstract

When a young observer attempts to accommodate steadily on a fixed stimulus, the norminally steady‐state response shows small instabilities or fluctuations (sometimes termed microfluctuations or oscillations). These fluctuations typically have an amplitude of a few tenths of a dioptre and a frequency spectrum extending up to a few Hertz. The properties of these fluctuations are described for various viewing conditions: pupil diameter, target vergence, target form, target contrast, and target luminance all influence the frequency spectra of the oscillations, as may anomalies of vision such as amblyopia. The possible roles that the fluctuations might play in the function of the accommodative system are discussed. It is suggested that the higher frequency components around 2 H z may arise from the mechanical and elastic characteristics of the lens, zonule and ciliary body. Components at lower frequencies (<0.5 Hz) may be of more significance in the function of the accommodative control system.

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Metadata

Authors
Charman, W. N., & Heron, G.
Venue
Ophthalmic and Physiological Optics
Publisher
Springer Science and Business Media LLC
Published
1988-04
Volume
8
Issue
2
Pages
153-164
ISSN
  • 0275-5408 (ISSN-L)
  • 1475-1313
DOI
10.1111/j.1475-1313.1988.tb01031.x
OpenAlex
W2132819729
Cited by
262
References
0
FWCI
3.48
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor, 7201 d)

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Charman, W. N., & Heron, G. (1988). Fluctuations in accommodation: a review. Ophthalmic and Physiological Optics. https://doi.org/10.1111/j.1475-1313.1988.tb01031.x

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