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Related Experiment Video

Updated: Jun 23, 2026

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application
11:49

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application

Published on: March 8, 2019

Adjustable fluidic lenses for ophthalmic corrections.

Randall Marks1, David L Mathine, Gholam Peyman

  • 1College of Optical Sciences, University of Arizona, Tucson, Arizona 86721, USA.

Optics Letters
|April 18, 2009
PubMed
Summary

Researchers developed two novel fluidic lenses for ophthalmic use, offering adjustable optical power and astigmatism control. These variable lenses represent a significant advancement in ophthalmic device technology.

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Last Updated: Jun 23, 2026

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Area of Science:

  • Ophthalmic optics
  • Biomedical engineering

Background:

  • Traditional ophthalmic lenses have limitations in adjustability.
  • Controlling optical power and astigmatism often requires multiple lens prescriptions.

Purpose of the Study:

  • To develop and demonstrate novel fluidic lenses for ophthalmic applications.
  • To achieve continuously variable optical power and astigmatism correction.

Main Methods:

  • Two fluidic lenses were designed with circular and rectangular apertures.
  • Optical powers ranging from -20 to +20 D were demonstrated.
  • Astigmatism values from 0 to 8 D were tested using a model eye.

Main Results:

  • Variable optical powers and astigmatism were achieved by adjusting fluid volume.
  • Image quality was assessed using a model eye.
  • The first demonstration of a continuously variable lens for astigmatism control was reported.

Conclusions:

  • Fluidic lenses offer a promising approach for adjustable vision correction.
  • These lenses provide a new platform for dynamic control of refractive errors.
  • Further development could lead to advanced adaptive ophthalmic devices.