Preliminary Results after Cataract Surgery with the Aspheric Acrysof ReSTOR IOL to Correct...
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Preliminary Results after Cataract Surgery with the Aspheric Acrysof ReSTOR IOL to Correct Presbyopia
Meeting of the ASCRSChicago
8-10 February 2007
R.M.M.A. Nuijts1, N.E. De Vries, and J. De Brabander
University Hospital Maastricht The Netherlands
1Author receives travel expenses from ALCON
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AcrySof® ReSTOR™
Model SN60D3• Apodized diffractive
structure 3.6 mm center• Refractive in periphery• Incorporates +4.0 add at
lens plane equaling +3.2 at spectacle plane
1.3 micronstep
larger steps: more light to near at centersmaller steps: more light to distance at edge
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AcrySof Aspheric IOL Design
PosteriorAspheric Optic
Symmetric Biconvex
6.0 mm
Anterior Aspheric Optic
AnteriorApodizedDiffractiveOptic
Symmetric Biconvex
6.0 mm
SN6AD3* SN60WF*
The ReSTOR Aspheric IOL (SN6AD3) is designed with negative spherical aberration
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Patients and Methods
• Prospective study aspheric ReSTOR– 15 patients, 30 eyes with cataract– Bilateral implantation within 2 weeks– 8-14 weeks follow-up– Mean age: 67 ± 8.0 years (range 52-81)
• Comparison with historical standard ReSTOR (SN60D3) group
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Outcome Measures
• Patients were examined monocularly and binocularly
• ETDRS visual acuity charts• logMAR visual acuity transferred to
Snellen UCDVA and BCDVA• Near visual acuity transformed into
Snellen values• Contrast sensitivity CSV-1000
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Refractive OutcomeComparative data
StandardReSTOR (%)
AsphericReSTOR (%)
Number of eyes 65 30
Mean SE (D) 0.06 ± 0.28 0.14 ± 0.49
SE ± 1.0 D (%) 100 100
Mean Refractive Astigmatism (D) -0.78 ± 0.62 -0.86 ± 0.60
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Uncorrected Distance VA Aspheric vs Standard ReSTOR
0.5
0.63
0.8
1.0
-0,1
0
0,1
0,2
0,3
Mea
n Lo
gMA
R V
A
Aspheric ReSTOR Standard ReSTOR
monocular binocular 1.25
0.79
0.89
0.68
0.85
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Monocular Near VAStandard vs Aspheric ReSTOR
0,870,831,010,96
00,20,40,60,8
11,2
UCNVA DCNVA
Standard ReSTOR Aspheric ReSTOR
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Aspheric vs. Standard ReSTOR IOL
Monocular Mesopic Contrast Sensitivity
0
0,3
0,6
0,9
1,2
1,5
1,8
2,1
3 cpd 6 cpd 12 cpd 18 cpd
Mea
n C
ontra
st S
ensi
tivity
(log
units
+/-
SD)
Standard ReSTOR
Aspheric ReSTOR
Largest difference = 0.29 log units
Clinical Significance 0.3 log units at 2 or more Spatial Frequencies
P=0.001
Vector Vision CSV-1000
P=0.04
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Use of SpectaclesAspheric ReSTOR IOL
• Reading glasses: 0/15
• Distance glasses: 0/15– 3/30 eyes scheduled for LASEK
• Computer glasses: 2/15
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Adverse Effects
• 3/30 eyes scheduled for YAG capsulotomy
• 3/30 eyes scheduled for LASEK• 1/30 re-operated for decentration• 1/30 IOL exchange for postoperative
ametropia• No disturbing glare or halo’s
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Conclusions
• Preliminary data of the aspheric ReSTOR IOL (SN6AD3):– Provides excellent near and distant VA– Mean monocular UCNVA: 0.96– No glasses for near or distant vision
• 2/15 patients computer glasses– No disturbing glare or halos– Higher contrast sensitivity as compared to
standard ReSTOR