Deli Sivekov

1
Aberration-Free Akreos MI60 Versus Spherical
Clariflex and Aspherical Tecnis Z9002
Eye clinic of the 3rd Faculty of Medicine,
Prague, Czech Republic

• Deli Siveková M.D., Magdalena Vokrojová M.D.,
• Lucia Wágnerová M.D., Prof. Pavel Kuchynka, CSc.

The authors have no financial interest in the
presentation material
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Purpose

• To compare visual functions after cataract
  surgery with implantation of different types of
  IOL.
• Prospective nonrandomized, non-comparative single
  center study.

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Examination

• Preoperatively - UCVA
• - BCVA
• - Wavefront analysis
• Postoperatively- UCVA
• - BCVA
• - Wavefront analysis
• - Contrast sensitivity

4
Methods

• 65 eyes of 40 patients
• 24 (60) women, 16 (40) men
• Mean age 71,6 (64-84) years
• Except for cataract, all patients were in healthy
  ocular condition
• Surgery standard operation technique
• temporal approach
• incision 2,6mm
• Infinity Vision system (Alcon)
• topical anesthesia

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Materials and methods

• In all patients there was a wavefront analysis
  and contrast sensitivity.
• - wavefront - analysis was performed
  monocularly with Wavescan (VISX, AMO) 3 months
  postoperatively.
• - contrast sensitivity (CSV-1000,
  VectorVision) was measured monocularly with the
  best distance correction 3 months
  postoperatively under photopic light conditions
  (85 cd/m2).

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3 groups of IOLs
Group A Group B Group C
Akreos AO MI60 (BauschLomb) Clariflex (AMO) Tecnis Z9002 (AMO)
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Akreos AO MI60 Clariflex Tecnis Z9002
Structure Single piece, foldable, 360 posterior ridge 3-pieces, foldable, UV - blocking filter 3-pieces, foldable, UV - blocking filter
Optics Aspheric aberration-free optics Biconvex optic diameter 6,0 mm Biconvex optic diameter 6,0 mm
Material hydrofilic acrylate polymethyl - diphenylsiloxane polydimethyl - diphenylsiloxane
Refractive index 1,45 1,46 1,46
A-constant 118,4 118,0 118,4

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Results(n65)
Akreos AO MI60 Clariflex Tecnis Z9002
UCVA 0,64 (0,5 1,0) 0,93 (0,63 - 1,0) 0,94 (0,63 - 1,0)
BCVA 0,95 (0,63 1,0) 0,97 (0,8 - 1,0) 0,98 (0,8 - 1,0)
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Results(n65)
Akreos AO MI60 Clariflex Tecnis Z9002
RMS error (Z 5,0mm) 0,22 0,05 SD 0,19 0,09 SD 0,15 0,05 SD
SA (Z 5,0mm) 0,11 0,06 SD 0,17 0,06 SD -0,02 0,05 SD
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Comparison
plt0,0001
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Contrast sensitivity
pgt0,05
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plt0,0001
Akreos AO MI60
Tecnis Z9002
Clariflex
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Conclusion

• We have found statistically significant
  difference in postoperative measured HOA and
  spherical aberration between our groups.
• Results of the examination of contrast
  sensitivity show that aspheric and aberration
  free intraocular lenses are significantly better
  than spherical lenses. These results between
  aspherical IOL and aberration free IOL was not
  found statistically significant.
• We did not find any statistically significant
  difference in our results of postoperative BCVA.