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The Synchrony IOL is not currently FDA-approved. OPTICAL QUALITY OF DUAL-OPTIC ACCOMMODATING INTRAOCULAR LENS. 1 Fundacion Valle del Lili, Cali-Colombia 2 Universidad Industrial de Santander, Bucaramanga-Colombia 3 Universidad Autonoma de Bucaramanga, Bucaramanga-Colombia

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optical quality of dual optic accommodating intraocular lens

The Synchrony IOL is not currently FDA-approved

OPTICAL QUALITY OF DUAL-OPTIC ACCOMMODATING INTRAOCULAR LENS

1 Fundacion Valle del Lili, Cali-Colombia

2 Universidad Industrial de Santander, Bucaramanga-Colombia

3 Universidad Autonoma de Bucaramanga, Bucaramanga-Colombia

4 Abbott Medical Optics Inc, Irvine, USA

Financial Disclosure

a Consultant Abbott Medical Optics

b Scientist at Abbott Medical Optics Inc.

  • Andrea Galvis, MD 1,3 a
  • Ivan Ossma, MD MPH MSc 1,2, a
  • Sanjeev Kasthurirangan, PhD 4, b
synchrony design

2

Synchrony Design
  • Anterior Optic 32 Diopters
  • Posterior Optic Divergent (negative)
study purpose
Study Purpose
  • Compare Optical Quality Pseudophakic Eyes
    • Monofocal IOL
    • Synchrony Dual Optic Accommodating IOL
  • Parameters
    • Objective iTrace aberrometry
      • Custom Matlab Software to calculate MTF
    • Subjective Contrast Sensitivity Testing
      • Optec 6500
study population
Study Population
  • iTrace aberrometry
    • Cycloplegia
    • 3 mm zone
    • Matlab Software to calculate MTF
    • Monofocal IOL : 15 subjects (30 eyes)
    • Synchrony IOL : 16 subjects (32 eyes)
best focus mtf 3 mm pupil
Best-focus MTF 3 mm pupil

Differences are less than 10%

mesopic contrast sensitivity

9

Mesopic Contrast Sensitivity

p=0.61 Wilcoxon Rank Sum Test

discussion
Discussion
  • Dual Optic Design DOES NOT affect optical or retinal image quality of the eye
    • Objective evidence (iTrace, MTF)
    • Subjective evidence (CSF)
  • Contrast sensitivity of Synchrony is equivalent to that of monofocal IOLs
discussion1
Discussion
  • Effect of the slight spherical aberration on Synchrony would only yield 0.42 D of increased depth of focus
    • Calculations based on Rocha’s work *
  • The improved near vision of Synchrony patients MOST LIKELY due to true accommodation

* Rocha KM. Using Adaptive Optics Simultion to Explore the Effect of Higher Order Aberrations on Depth of Focus for the Correction of Presbyopia. Wavefront Congress 2008

conclusion
Conclusion
  • Quality of Vision of Synchrony IOL similar to standard monofocal IOLs
    • Measured Subjectively
    • Measured Objectively
  • Improved Near Vision with Synchrony
    • Not related to increased depth of focus