April 2011
Volume 52, Issue 14
Free
ARVO Annual Meeting Abstract  |   April 2011
Presbyopia is the First Stage of Nuclear Cataract-Analysis of Forward and Backward Scattered Straylight in the Presbyopic Human Lens
Kathleen S. Kunert; Monique Nennstiel; Marcus Blum; Stefan Schramm; Bernd-Ulrich Seifert; Patrick Schikowski; Juergen Prehl; Monika Reder
Author Affiliations & Notes
  • Kathleen S. Kunert
    Department of Ophthalmology, HELIOS Klinikum Erfurt, Erfurt, Germany
  • Monique Nennstiel
    Department of Ophthalmology, HELIOS Klinikum Erfurt, Erfurt, Germany
  • Marcus Blum
    Department of Ophthalmology, HELIOS Klinikum Erfurt, Erfurt, Germany
  • Stefan Schramm
    Biomedical Engineering and Informatics, Ilmenau University of Technology, Germany
  • Bernd-Ulrich Seifert
    Biomedical Engineering and Informatics, Ilmenau University of Technology, Germany
  • Patrick Schikowski
    Biomedical Engineering and Informatics, Ilmenau University of Technology, Germany
  • Juergen Prehl
    Biomedical Engineering and Informatics, Ilmenau University of Technology, Germany
  • Monika Reder
    Department of Ophthalmology, HELIOS Klinikum Erfurt, Erfurt, Germany
  • Footnotes
    Commercial Relationships  Kathleen S. Kunert, None; Monique Nennstiel, None; Marcus Blum, None; Stefan Schramm, None; Bernd-Ulrich Seifert, None; Patrick Schikowski, None; Juergen Prehl, None; Monika Reder, None
  • Footnotes
    Support  BMBF FKZ 13N8835A
Investigative Ophthalmology & Visual Science April 2011, Vol.52, 826. doi:
  • Views
  • Share
  • Tools
    • Alerts
      User Alerts
      You are adding an alert for:
      Presbyopia is the First Stage of Nuclear Cataract-Analysis of Forward and Backward Scattered Straylight in the Presbyopic Human Lens
      You will receive an email whenever this article is corrected, updated, or cited in the literature. You can manage this and all other alerts in My Account
      The alert will be sent to:
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation
      Citation

      Kathleen S. Kunert, Monique Nennstiel, Marcus Blum, Stefan Schramm, Bernd-Ulrich Seifert, Patrick Schikowski, Juergen Prehl, Monika Reder; Presbyopia is the First Stage of Nuclear Cataract-Analysis of Forward and Backward Scattered Straylight in the Presbyopic Human Lens. Invest. Ophthalmol. Vis. Sci. 2011;52(14):826.

      Download citation file:

      © ARVO (1962-2015); The Authors (2016-present)

      ×
    • Get Permissions
  • Supplements
Abstract

Purpose: : The study was conducted as a prospective clinical pilot study to analyse ocular straylight in presbyopia. Changes in the lens with presbyopia might not only result in a loss of accommodation but also in a reduced visual performance due to straylight induced by the lens.

Methods: : A total of 139 patients (278 eyes) were examined and divided by age (y) into the three following groups: (G1-praepresbyopic-18-35 y; G2-presbyopic-36-50 y; G3-accommodative loss-51-80 y). Two methods were used to measure ocular straylight. First, backward scattered light was evaluated using the Pentacam High Resolution. Second, forward scattered light was subjectively measured with the C-Quant (both instruments from Oculus Optikgeräte GmbH, Germany). Besides, visual acuity was measured with EDTRS-charts and accommodative amplitude with the WAM-5500 (Grand Seiko Co. Ltd., Japan). Differences between the age groups were investigated using the Mann-Whitney-U-test.

Results: : Measurement of backward scattered straylight using the Pentacam-Scheimpflug method (linear densitometry) revealed significant differences between all age groups: An increase in the densitometric value Dmax was seen between G1-G2 (p< 3.6 e-14), G1-G3 (p< 0.0001) and G2-G3 (p< 0.0001). The measurement of the subjective forward scattered straylight also showed a significant increase with age. Differences were again significant for all three groups: G1-G2 (p< 0.03), G1-G3 (p< 0.0001) and G2-G3 (p< 5.3 e-09). For both methods, significances were seen already at the stage of presbyopia. Visual acuity was significantly reduced between G1-G3 (p< 0,001), but not between G1-G2. Accommodative amplitude declined with age as expected.

Conclusions: : The increase of ocular straylight is reproducibly dependent on age. A significant increase in straylight can be demonstrated at the stage of presbyopia even though visual acuity remains unaffected and accommodative effort of the lens is not yet collapsed.

Keywords: presbyopia • imaging/image analysis: clinical • accommodation 
© 2011, The Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Permission to republish any abstract or part of an abstract in any form must be obtained in writing from the ARVO Office prior to publication.
Copyright © 2024 Association for Research in Vision and Ophthalmology.
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×
This site uses cookies. By continuing to use our website, you are agreeing to our privacy policy.Accept