Biometric investigation of the effect of gravity on the crystalline lens during accommodation

  • C. Tromans
  • J. K. Storey
Part of the Documenta Ophthalmologica Proceedings Series book series (DOPS, volume 53)

Summary

The reliability of the Storz Alpha Biometric Ruler was found to compare very favourably with the Kretz 7200MA A-scan instrument.

The Storz Alpha II Biometric Ruler was used to measure the position of the crystalline lens with the subject upright, prone and supine. Initial measurements were recorded under cycloplegia. On another visit a random seies of accommodative stimuli were presented and the ocular dimensions recorded from the contralateral eye. Age, sex, refraction and amplitudes of accommodation were noted. This study aims to provide a guide to the possible effects of head posture on ocular dimensions and to determine whether any assistance to accommodation is provided by gravity.

Keywords

Anterior Chamber Axial Length Crystalline Lens Anterior Chamber Depth Lens Thickness 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Storey JK, Phillips CI. 1971. Ultrasonic investigations on mobility of the crystalline lens. In: M Massin, J Poujol (eds) Transactions of SIDUO IV. Centre de National D’Ophthalmologie des Quinze-Vingts, Paris 1973, pp. 261–264.Google Scholar
  2. Rabie EP, Storey JK. 1984. The reliability of ultrasonic axial length measurement. In: WN Charman (ed) Trans. 1st International Congress on Frontiers of Optometry. British college of Optometrists, London, pp. 51–57.Google Scholar

Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • C. Tromans
    • 1
  • J. K. Storey
    • 1
  1. 1.Manchester Royal Eye HospitalManchesterEngland

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