James T Schwiegerling
Affiliation: University of Arizona
- Problems testing diffractive intraocular lenses with Shack-Hartmann sensorsJim Schwiegerling
Ophthalmology and Vision Sciences, University of Arizona, 655 North Alvernon Way, Suite 108, Tucson, Arizona 85711, USA
Appl Opt 49:D62-8. 2010..However, there is a growing class of patients with diffractive intraocular lenses that will potentially be measured incorrectly with Shack-Hartmann devices. We explore the pitfalls of measuring diffractive lenses with this technology...
- Gaussian weighting of ocular wave-front measurementsJim Schwiegerling
University of Arizona, Ophthalmology and Optical Sciences, Tucson, Arizona 85711, USA
J Opt Soc Am A Opt Image Sci Vis 21:2065-72. 2004..A technique for weighting the pupil function of the eye with a Gaussian filter is demonstrated. It is further demonstrated that the variance of the Gaussian-weighted wave-front error is well correlated with visual performance...
- Scaling pseudo-Zernike expansion coefficients to different pupil sizesJim Schwiegerling
College of Optical Sciences, University of Arizona, 1630 East University Boulevard, Tucson, Arizona 85721, USA
Opt Lett 36:3076-8. 2011..Here, similar techniques are used to rescale the expansion coefficients to new pupil sizes for a related orthogonal set: the pseudo-Zernike polynomials...
- Predicting clinical visual acuity of presbyopia treatmentsJim Schwiegerling
Ophthalmology and Vision Sciences, University of Arizona, Tucson, Ariz 85711, USA
J Refract Surg 26:66-70. 2010..To predict the potential clinical visual acuity of different presbyopia treatments...
- Statistical generation of normal and post-refractive surgery wavefrontsJim Schwiegerling
Department of Ophthalmology and Vision Science, University of Arizona, Tucson, AZ 85711, USA
Clin Exp Optom 92:223-6. 2009..These models can then be used to find the statistical distribution of image quality metrics based on metrics such as MTF and retinal spot size...
- Minimal movement zoom lensJim Schwiegerling
Department of Ophthalmology, University of Arizona, Tucson, Arizona 85721, USA
Appl Opt 48:1932-5. 2009..We describe the shapes of the Alvarez lenses used, as well as the advantages, the disadvantages, and the differences between a telescope using Alvarez lenses and a traditional telescope...
- Application of the polychromatic defocus transfer function to multifocal lensesJim Schwiegerling
Ophthalmology and Vision Sciences, University of Arizona, Tucson, AZ 85711, USA
J Refract Surg 24:965-9. 2008..To model the performance of multifocal lenses in polychromatic lighting...
- Analysis of the optical performance of presbyopia treatments with the defocus transfer functionJim Schwiegerling
Ophthalmology and Vision Sciences, University of Arizona, Tucson, AZ 85711, USA
J Refract Surg 23:965-71. 2007..Multizone-refractive, diffractive, and apodized intraocular lens technologies are currently being used. This article evaluates the optical performance of these markedly different technologies in a simple and comparable manner...
- Recent developments in pseudophakic dysphotopsiaJim Schwiegerling
Ophthalmology and Vision Sciences, Optical Sciences, University of Arizona, Tucson, 85711, USA
Curr Opin Ophthalmol 17:27-30. 2006..This review looks at the improvement efforts of recent years to illustrate the systematic hunt for lens problems...
- Modal reconstruction methods with Zernike polynomialsJim Schwiegerling
Department of Ophthalmology and Vision Science, University of Arizona, Tucson, Arizona, USA
J Refract Surg 21:S552-7. 2005..To compare the advantages and disadvantages of different techniques for fitting Zernike polynomials to surfaces...
- Scaling Zernike expansion coefficients to different pupil sizesJim Schwiegerling
Department of Ophthalmology, University of Arizona, Tucson 85711, USA
J Opt Soc Am A Opt Image Sci Vis 19:1937-45. 2002..This investigation derives relationships between the Zernike expansion coefficients for two different pupil sizes...
- Wavefront and topography: keratome-induced corneal changes demonstrate that both are needed for custom ablationJim Schwiegerling
Department of Ophthalmology, and Optical Sciences Center, University of Arizona, Tucson, USA
J Refract Surg 18:S584-8. 2002..To examine the effects of laser in situ keratomileusis (LASIK) flap incision and healing on the shape of the cornea and the wavefront error of the eye...
- Optical performance measurement and night driving simulation of ReSTOR, ReZoom, and Tecnis multifocal intraocular lenses in a model eyeJunoh Choi
College of Optical Sciences, Department of Ophthalmology, University of Arizona, Tucson, Ariz 85711, USA
J Refract Surg 24:218-22. 2008..To measure the optical properties of multifocal intraocular lenses (IOLs) for different pupil sizes...
- Switchable electro-optic diffractive lens with high efficiency for ophthalmic applicationsGuoqiang Li
College of Optical Sciences, University of Arizona, Tucson, AZ 85721, USA
Proc Natl Acad Sci U S A 103:6100-4. 2006..They have the potential of revolutionizing the field of presbyopia correction when combined with automatic adjustable focusing power...
- Tunable-focus flat liquid-crystal diffractive lensPouria Valley
College of Optical Sciences, University of Arizona Tucson, Arizona 85721, USA
Opt Lett 35:336-8. 2010..Potential applications include zooms with no moving parts and autofocus lenses for compact imaging devices...
- Higher order aberrations in normal, dilated, intraocular lens, and laser in situ keratomileusis corneasJoseph M Miller
Department of Ophthalmology and the Optical Sciences Center of the University of Arizona, Tucson, USA
J Refract Surg 18:S579-83. 2002..To compare repeated measures of Zernike polynomial higher-order aberrations in 29 normal, 13 dilated normal, 11 intraocular lens (IOL), 11 laser in situ keratomileusis (LASIK), and one refractive keratectomy (RK)/IOL subject...
- Systematic error of a large dynamic range aberrometerPeng Wu
College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA
Appl Opt 48:6376-80. 2009..We found that the largest component of this error is induced by the pupil aberration of the imaging relay lens. Some simulations and experimental results are demonstrated...
- Adjustable adaptive compact fluidic phoropter with no mechanical translation of lensesRandall Marks
College of Optical Sciences, 1630 E University Boulevard, University of Arizona, Tucson, Arizona 86721, USA
Opt Lett 35:739-41. 2010..The lenses were then assembled into the phoropter and controlled with three separate fluid controls. The phoroptor was verified by correcting the vision of a model eye with an induced refraction error...
- Systematic errors analysis for a large dynamic range aberrometer based on aberration theoryPeng Wu
College of Optical Sciences, University of Arizona, Tucson, Arizona 85719, USA
Appl Opt 48:6324-31. 2009..The simulation and experimental results are illustrated to verify the theoretical predictions...
- Adjustable fluidic lenses for ophthalmic correctionsRandall Marks
College of Optical Sciences, University of Arizona, Tucson, Arizona 86721, USA
Opt Lett 34:515-7. 2009..Both lenses were variable and controllable by adjusting the fluid volume of the lens. To the best of our knowledge this is the first demonstration of a continuously variable lens for control of astigmatism...
- Standards for reporting the optical aberrations of eyesLarry N Thibos
School of Optometry, Indiana University, Bloomington, USA
J Refract Surg 18:S652-60. 2002..Progress reports were presented at the 1999 OSA annual meeting and at VSIA-2000 by the chairs of three taskforce subcommittees on (1) reference axes, (2) describing functions, and (3) model eyes...
- Snapshot Retinal Imaging PolarimeterJames Schwiegerling; Fiscal Year: 2007..Furthermore, the device could potentially be a low-cost add-on to existing fundus cameras, allowing a more widespread utility than existing devices. [unreadable] [unreadable]..