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1. TECNIS® 1-Piece IOL Rejuvenate Vision.
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3. TECNIS™ 1-Piece IOL Overview
4. TECNIS™ 1-Piece IOL - OPTICS
5. TECNIS™ 1-Piece IOL - MATERIAL
6. TECNIS™ 1-Piece IOL - DESIGN
7. TECNIS® 1-Piece IOL DESIGN
8. TECNIS® 1-Piece Design Benefits Ease of implantation
The next-generation design
Bag-friendly coplanar delivery
Reduced center thickness for a slim lens profile additionally facilitates implantation
Polished haptic loops reduce friction and enable controlled, gentle unfolding of the lens in the capsular bag
9. TECNIS® 1-Piece Design Benefits ProTEC™ 360° Edge Design
The 360° square edge is designed to limit LEC migration
Uninterrupted contact with the posterior capsular bag even at the haptic-optic junction
Unlike traditional single-piece designs, it prevents cell migration along the haptic
The frosted-edge design minimizes edge glare
10. TECNIS® 1-Piece Design Benefits Tri-Fix™ 3-Point Fixation
Characterized by an offset haptic design
3-point fixation provides:
Constant capsular contact
Additional stability over traditional single-piece lenses
Contact of sharp optic edge against the posterior capsule limits LEC migration
Rapid, long-term stabilization of the optic and refraction
11. TECNIS® 1-Piece IOL OPTICAL BENEFITS
12. The Aging Eye Functional vision is reduced as the aging crystalline lens loses the ability to compensate for corneal spherical aberration*†
The aging eye has positive spherical aberration
Aberrations cause blurred vision and reduce contrast sensitivity and functional vision
Onset of a cataract exacerbates the problem
13. The Youthful Eye Negative spherical aberration of the young crystalline lens balances positive spherical aberration of the cornea*
The young eye has essentially zero spherical aberration at the age of 19**
Light is sharply focused on the retina, producing a quality image and good functional vision
14. The Youthful Eye Peak visual performance occurs at 19; this is when contrast sensitivity and quality of vision peak*,†
15. Lower Spherical Aberration = Better Accommodation* Holladay explains this phenomenon by saying, “Basically, when looking at something up close, the pupil constricts, using more of the central area of the TECNIS lens. This area of the TECNIS lens has more power than available in the periphery so the near object becomes clearer.”
Holladay explains this phenomenon by saying, “Basically, when looking at something up close, the pupil constricts, using more of the central area of the TECNIS lens. This area of the TECNIS lens has more power than available in the periphery so the near object becomes clearer.”
16. Target Zero Spherical Aberration The proprietary modified prolate anterior surface of TECNIS® IOLs is designed to rejuvenate vision by targeting zero spherical aberration*,†
Average human cornea has +0.27 microns of spherical aberration throughout life‡
The TECNIS® IOL corrects for -0.27 microns of spherical aberration, similar to the crystalline lens between the ages of 19-25
TECNIS® is the first and only FDA approved IOL designed to reduce spherical aberration to 0.0†, similar to that of a 19-year old
17. Spherical Aberration Reduced to Essentially Zero*
18. High-Quality Vision With the TECNIS® IOL In aviation-type visual performance testing in the ACE model, vision in low-light conditions (5 mm pupil) was superior with TECNIS® IOL compared to a spherical IOL.†
19. Clinical Significance* Safety for drivers and others:
“…there is likely to be a meaningful safety benefit for elderly drivers with TECNIS® lenses, and to the driversand pedestrians with whom they share the road.”
Safety that extends beyond driving:
“…the TECNIS® lens improves functional vision, which may improve patient safety for other life situations under low-visibility conditions.”
20. Proven TECNIS® Optics Approved claims by the FDA for:
Reduced spherical aberration*
Improved functional vision*
Improved night-driving simulator performance*
21. Residual Spherical Aberration Decreases Image Quality* Residual spherical aberration of monofocal lenses (4 mm pupil)
22. Significant Improvement in MTF In one study, TECNIS® IOL shows over twice the improvement in modulation transfer function (MTF) at 100 c/mm versus AcrySof® IQ and over three times the improvement in MTF at 100 c/mm versus LI61AO and a spherical IOL.*
23. Clinical Comparison of TECNIS® Z9000, AcrySof™ IQ, and SofPort™ AO IOLs† Purpose:
Compare aspheric IOLs with an emphasis on postoperative ocular spherical aberration and contrast sensitivity (CS)
Methods:
Monocular, randomized, double-masked, parallel group study (n=76)
After standard phaco, patients were randomized to the SofPort AO IOL (AO), the AcrySof IQ IOL (IQ), or the Tecnis Z9000 IOL (Tecnis)
Measures included pre- and postoperative BCVA, pre- and postoperative corneal topography, refraction, postoperative wavefront aberrometry, postoperative photopic (85 cd/m2) and mesopic (3 cd/m2) CS, and complications.
Spherical aberrations were recorded for a 5 mm pupil.
Data were collected at the 3 month postoperative visit.
24. Less Postoperative SA with TECNIS®: 5 mm Pupil†
25. Comparable Postoperative Corneal SA With Each Lens: 6 mm Pupil†
26. Significant Differences in Contrast Sensitivity: Mesopic Conditions†
27. Significant Differences in Contrast Sensitivity: Photopic Conditions†
28. Study Findings† TECNIS® IOL effectively compensates for the SA in the average eye
Less SA than AO or IQ (P <.001 versus IQ)
Under mesopic conditions, mean CS was significantly better with TECNIS® IOL than with AO or IQ at 3 cpd
Also significantly better vs. AO at 18 cpd
Under photopic conditions, mean CS was significantly better for TECNIS® vs. AO IOLs at 3 cpd and 18 cpd.
29. Section Summary Functional vision is reduced as the aging crystalline lens loses the ability to compensate for corneal spherical aberration
The young eye has essentially zero spherical aberration at the age of 19
Peak visual performance occurs at 19; this is when contrast sensitivity and quality of vision peak
Spherical IOLs and aspheric IOLs that induce or leave residual spherical aberration may reduce image quality
TECNIS® IOLs are the only FDA approved IOLs designed to rejuvenate vision by targeting zero spherical aberration
30. TECNIS® 1-Piece IOL MATERIAL CONSIDERATIONS
31. Common Topics Involving Material Selection Calcification
Glistenings
Light transmission
Chromatic aberration
32. Available Lens Materials PMMA
Collamer
Silicone
Acrylic
Hydrophilic acrylic
Hydrophobic acrylic
33. Acrylic IOLs: Hydrophobic vs Hydrophilic Materials
34. Summary of Hydrophobic Acrylic Material
35. Summary of Hydrophilic Acrylic Material
36. Published Risks With Hydrophilics Too permeable:
Highest incidence of LEC growth1
Prone to Trypan Blue Dye uptake2,3
Patients with stained IOLs had more glare3
Calcification:
Propensity for calcification and opacification4
Leading cause of explant is calcification5
Decreased vision, mistiness, glare6
One thing B&L will say is that hydrophilic material is biocompatible -- or quiet in the eye. But is it too biocompatible? By absorbing its surroundings, hydrophilics have a history of LEC growth, cloudy vision, higher-than-average rate of explants, and dye-uptake.
Hydrophilics also have a history of calcific deposits, leading to opacification. One thing B&L will say is that hydrophilic material is biocompatible -- or quiet in the eye. But is it too biocompatible? By absorbing its surroundings, hydrophilics have a history of LEC growth, cloudy vision, higher-than-average rate of explants, and dye-uptake.
Hydrophilics also have a history of calcific deposits, leading to opacification.
37. Recent Calcification Study Purpose: To compare IOLs of different materials in the same model system for IOL calcification
Method of Buchen et al, JCRS 2001;27:1473
SEM (at 500x) and EDX photos taken of central portion of IOL
3 IOLs per group implanted subcutaneously for 10 weeks in New Zealand white rabbits
Hydrophilic acrylic: Akreos Fit, Akreos Adapt, Acri.Smart, Corneal, Rayner, ThinOptx, and Hydroview IOLs
Hydrophobic acrylic: Sensar IOL
2nd-generation silicone: ClariFlex IOL
38. Calcification Study Results SEM showed surface delamination and pitting on hydrophilic acrylic IOLs, but not on hydrophobic acrylic or silicone IOLs
EDX analysis showed distinct calcium and phosphorus peaks for the hydrophilic acrylic IOLs, but not for hydrophobic acrylic or silicone IOLs
39. Acrylic IOLs: Glistenings
40. Glistenings Formation in Hydrophobic Acrylic* Temperature changes allow water to collect within gaps formed by non-homogenous polymerization
Manufacture by lathe cutting results in fewer gaps vs. molding
The AMO lathe cut material has fewer gaps and is less sensitive to temperature change vs. the AcrySof™ molded material
The combination of injection molding and temperature sensitivity leads to significantly more glistening formation with AcrySof™ IOLs
41. Clinical Significance With Glistenings Loss in contrast sensitivity
A study of the effects glistenings have on visual function has shown that glistenings in AcrySof™ IOLs (MA30BA and MA60BA) were related to a statistically significant loss in contrast sensitivity at high spatial frequencies*
Decreased visual acuity
A study has shown that eyes with higher grades of glistenings had a small but significantly greater decrease in visual acuity than those with lesser grades†
42. The Light Scatter Effect With Glistenings*
43. The Light Scatter Effect:Comparison of Acrylic Materials
44. The Light Scatter Effect:Comparison of Acrylic Materials* Initially, scatter of all IOLs was < 20yr old healthy crystalline lens
Lenses with glistenings can cause scatter greater than that present in a 70 year old’s crystalline lens
The forward light scatter of AcrySof™ lenses is relatively large compared to the backward scatter, so functional significance may be underestimated in the clinic
45. Acrylic IOLs: The Importance of Healthy Blue Light
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IOL Light-Blocking Categories
47. IOL Light-Blocking Categories
48. IOL Comparison 48
49. To Block or Not to Block Blue Light? Blue light is not associated with AMD:
9 of 11 major epidemiological studies show no correlation between AMD and lifelong light exposure1
Factors that have been correlated with AMD are:
1) Age
2) Genetics
3) Smoking
4) Nutrition
Blue light has been proven to be essential for:
Optimal scotopic vision1
Healthy circadian rhythms2-4
50. Blue light provides 35% of scotopic sensitivity* Blue Light’s Affect on Scotopic Sensitivity
51. Blue-Blocking IOLs and Scotopic Sensitivity Blue-blocking IOLs reduce scotopic sensitivity by 14 to 21%1-3
52. Why Scotopic Sensitivity is Important? Scotopic visual sensitivity decreases twice as fast with aging than photopic sensitivity1
Scotopic sensitivity decreased at a rate of 0.08 log units per decade vs 0.04 log units for photopic sensitivity
Scotopic vision declines with age, even in healthy eyes with no cataract or retinal problems2
53. Why Were Blue-Blocking IOLs Developed? The first blue light blocking IOLs were designed prior to the discovery of the role of retinal ganglion photoreceptors and their relation to melatonin suppression*
54. Blue Light’s Effect on Melatonin Suppression Melatonin is a key factor in controlling the body’s natural circadian rhythms*
The release and suppression of melatonin affects sleep patterns, mood, memory, and systemic health*
Melatonin suppression is controlled by blue light sensitive retinal ganglion cells
Blue light provides 55% of melatonin suppression*
55. Acrylic IOLs: The Role of Chromatic Aberration
56. What is Chromatic Aberration? Uneven focusing of an optical system which causes wavelengths of light to have different focal points thus decreasing optical performance
In order for an optical system to be optimized, it must address both monochromatic (defocus, astigmatism, and higher order aberrations) and chromatic aberration
57. How Do We Measure Chromatic Aberration? Chromatic aberration from IOLs may negatively impact:
Visual acuity
Contrast sensitivity
Functional vision
The chromatic aberration of optical materials can be expressed by their Abbe numbers
The higher the Abbe number the lower the chromatic aberration and the higher the retinal image quality
58. Material Comparison A higher Abbe number is better: this means less chromatic aberration and better optical performance1,2
59. Clinical Significance of a Higher Abbe Number Lower chromatic aberration vs. AcrySof™ hydrophobic acrylic and less than the average young crystalline lens
60. Summary of Material Considerations Available lens materials include: PMMA, Collamer, Silicone, and Acrylic with acrylic as the most commonly selected
Common material concerns include: calcification, glistenings, light transmission, and chromatic aberration
AMO hydrophobic acrylic effectively responds to these concerns and often outperforms other competitive materials as evidenced by:
No calcification or opacification as found with hydrophilic acrylic IOLs
A proprietary cryo-lathing process that limits the occurrence of glistenings vs. AcrySof acrylic material
Full transmission of healthy blue light for
Better scotopic sensitivity
Optimal circadian rhythms
Lower chromatic aberration vs. AcrySof hydrophobic acrylic and less than the average young crystalline lens
61. US Clinical Study 1-Year Data
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Spherical 1-Piece US Study:Cohort Description US study conducted with the spherical version of the 1-piece lens
123 Subjects
Gender: 43.1% male, 56.9 % female
Mean Age: 71.9 (± 8.5SD) - ranged from 48 to 94 years
6 investigational sites
Emmetropia (plano ± 0.25D) was the targeted refraction for all but three subjects
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Spherical 1-Piece IOL:Uncorrected Distance Visual Acuity
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Spherical 1-Piece IOL:Best Corrected Distance Visual Acuity
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Spherical 1-Piece Clinical Study:Analysis of Safety Adverse Events
Four subjects developed CME during the course of the study for a cumulative CME rate of 3.3% (4/123)
One subject had persistent CME at one year for a rate of 0.9% (1/117)
One subject underwent a lens exchange secondary to torn haptic (related to improper folding)
One subject underwent a pars plana vitrectomy with an epiretinal membrane peel
No unanticipated adverse device effects
No lens complications
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Spherical 1-Piece Clinical Study:Summary and Conclusions 91.5% of all subjects were 20/40 or better uncorrected for distance
100% of all subjects achieved BCDVA of 20/40 or better
No lens complications occurred during the investigation
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In Summary Next generation one-piece design
3-point fixation for stability
360-degree barrier protection
Bag-friendly coplanar design
Same TECNIS® Optic
Reduces spherical aberration to essentially zero
Proprietary FDA-approved material
Transmits healthy blue light
Lowest chromatic aberration and highest optical throughput
No glistenings or calcification issues
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References
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Bisol T, Rezende RA, Guedes J, Dantas AM. Effect of blue staining of expandable hydrophilic intraocular lenses on contrast sensitivity and glare vision. J Cataract Refract Surg. 2004;30(8):1732-1735.
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References Chu R. Targeting Zero Spherical Aberration With Optimal Lens Selection And Pseudophakic Management. Presented at the ESCRS, 2007.
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Gregori NZ, Spencer TS, Mamalis N, Olson RJ. In vitro comparison of glistening formation among hydrophobic acrylic intraocular lenses(1). J Cataract Refract Surg. 2002;28(7):1262-1268.
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McBride DK, Matson W. Preliminary report PIPS-50-03. Arlington, VA: Potomac Institute for Policy Studies; April 1, 2003.
Miyata A, Yaguchi S. Equilibrium water content and glistenings in acrylic intraocular lenses. J Cataract Refract Surg. 2004;30:1768-1772.
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72. Indications
TECNIS® foldable intraocular lenses are indicated for primary implantation for the visual correction of aphakia in adults in whom a cataractous lens has been removed by phacoemulsification. The lenses are intended to be placed in the capsular bag. Rx Only. Precautions: Do not resterilize the lens; do not soak or rinse the lens with any solution other than sterile saline solution; do not store the lens in direct sunlight. Warnings: Surgeons should consider the risk/benefit ratio for adults with preoperative ocular pathology, including but not limited to inflammation, distorted eye and microbial infection. Adverse Events: Adverse events that have been documented as having occurred following intraocular lens implantation include, but are not limited to, corneal edema, iritis, lens dislocation, hyphema, macular edema, and retinal detachment. For a complete listing of precautions, warnings and adverse events, refer to the package insert.
TECNIS and the AMO logo are registered trademarks, and ProTEC and Tri-Fix are trademarks of Advanced Medical Optics, Inc. AcrySof is a trademark of Alcon, Inc.