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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 29 — Oct. 10, 2012
  • pp: 6926–6932

Aspheric spectacles for correcting presbyopia with myopia and astigmatism

Shaolin Zheng, Zhaoqi Wang, Yongji Liu, and Rui Li  »View Author Affiliations


Applied Optics, Vol. 51, Issue 29, pp. 6926-6932 (2012)
http://dx.doi.org/10.1364/AO.51.006926


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Abstract

The aim of this paper is to propose a method for designing aspheric spectacles capable of realizing good optical performance at both far and near vision for presbyopia. We have experimentally measured wavefront aberrations and axial lengths for eight myopic eyes. In consideration of the field of view (FOV), the rotation of the eyeball, and a small amount of accommodation retained for presbyopia, we constructed individual eye models and optimized all the spectacle-eye systems for visible wavelengths by Zemax’s simulation. Finally, we evaluated the image quality by the modulation transfer function (MTF) and visual acuity (VA) with different pupil sizes (2, 2.8, 4 mm). Results show that when the pupil size is 2 mm or 2.8 mm, the spectacles designed for the full FOV (0° and ±4° FOV) provide a strong ability to transfer low contrast at both far and near vision, and the VA for all reaches 0.8, and up to 1.1 for eyes NO. 1, NO. 5, NO. 6, and NO. 8 for the 0° FOV. As the pupil size increases to 4 mm, the VA for all comes to 0.6 for the full FOV, indicating that presbyopia is able to acquire a good visual resolution at both far and near vision by the designed aspheric spectacles. Furthermore, we verified the visual continuity of the spectacle-eye systems by studying intermediate vision, which demonstrates that the method used in our design is accurate and practicable.

© 2012 Optical Society of America

OCIS Codes
(170.4470) Medical optics and biotechnology : Ophthalmology
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices
(330.7322) Vision, color, and visual optics : Visual optics, accommodation

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: July 3, 2012
Revised Manuscript: August 29, 2012
Manuscript Accepted: September 3, 2012
Published: October 3, 2012

Citation
Shaolin Zheng, Zhaoqi Wang, Yongji Liu, and Rui Li, "Aspheric spectacles for correcting presbyopia with myopia and astigmatism," Appl. Opt. 51, 6926-6932 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-29-6926

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