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ASCRS/ESCRS Survey on Foldable IOLs Requiring Explantation or Secondary Intervention 2005 Update. Nick Mamalis, MD Professor of Ophthalmology. John A. Moran Eye Center University of Utah, Salt Lake City. Co-Authors Brian Haugen, MD Jonathan Haymore, MD Natalya Romaniv, MD - PowerPoint PPT Presentation
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ASCRS/ESCRS Survey on Foldable IOLs RequiringExplantation or Secondary Intervention
2005 Update
Nick Mamalis, MDProfessor of Ophthalmology
John A. Moran Eye CenterUniversity of Utah, Salt Lake City
Co-Authors
Brian Haugen, MDJonathan Haymore, MDNatalya Romaniv, MD
Ophthalmic Research Fellows
Materials and MethodsMaterials and Methods
• 8th annual survey of ASCRS/ESCRS 8th annual survey of ASCRS/ESCRS membersmembers
• Foldable IOL Foldable IOL complications/explantations - 2005complications/explantations - 2005
• Intermountain Ocular Research Intermountain Ocular Research Center - University of UtahCenter - University of Utah
• Cataract Clinical CommitteeCataract Clinical Committee
Materials and MethodsMaterials and Methods
• Signs and symptoms/complaintsSigns and symptoms/complaints
• Pre-op visual acuityPre-op visual acuity
• Complications requiring IOL Complications requiring IOL removal/exchange/secondary removal/exchange/secondary interventionintervention
Materials and MethodsMaterials and MethodsFoldable IOL DesignsFoldable IOL Designs
• One-piece, plate-type lensesOne-piece, plate-type lenses
• One-piece lenses with hapticsOne-piece lenses with haptics
• Three-piece lensesThree-piece lenses
• Multifocal lensesMultifocal lenses
Materials and MethodsMaterials and MethodsFoldable IOL MaterialsFoldable IOL Materials
• SiliconeSilicone
• Acrylic (hydrophobic)Acrylic (hydrophobic)
• Hydrogel (hydrophilic acrylic)Hydrogel (hydrophilic acrylic)
• CollamerCollamer
Survey Lens Totals 2005Survey Lens Totals 2005
2% 11%
30%
9%20%
10%
18%
Multifocal,Silicone
One Piece (plate),Silicone
One Piece with Haptics,Acrylic
One Piece with Haptics,Hydrogel
Three Piece,Acrylic
Three Piece,Hydrogel
Three Piece,Silicone
ComplicationsComplicationsThree-Piece Silicone IOLThree-Piece Silicone IOL
• Dislocation / decentration seen most Dislocation / decentration seen most commonlycommonly
0%
10%
20%
30%
40%
50%
60%
70%
80%
Three Piece,Silicone
% o
f C
om
plic
ati
on
Calcification/opacification
Damaged IOL - Cracked or torn during insertion
Dislocation/Decentration
Glare/optical aberrations
Incorrect lens power
Infection/endophthalmitis
Operative complications
Removed during retinal surgery
Retinal problems/RD
Unknown
ComplicationsComplicationsOne-Piece (Plate Silicone)One-Piece (Plate Silicone)
• Dislocation / decentrationDislocation / decentration
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
One Piece (plate),Silicone
% o
f Co
mp
licat
ion
Calcification/opacification
Damaged IOL - Cracked or torn duringinsertionDislocation/Decentration
Glare/optical aberrations
Incorrect lens power
Infection/endophthalmitis
Operative complications
Removed during retinal surgery
Retinal problems/RD
Unknown
ComplicationsComplicationsThree-Piece AcrylicThree-Piece Acrylic
• Dislocation / decentrationDislocation / decentration• Incorrect lens powerIncorrect lens power• Glare/optical aberrationsGlare/optical aberrations
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
50%
Three Piece,Acrylic
% o
f Co
mp
licat
ion
Calcification/opacification
Damaged IOL - Cracked or tornduring insertionDislocation/Decentration
Glare/optical aberrations
Incorrect lens power
Infection/endophthalmitis
Operative complications
Removed during retinal surgery
Retinal problems/RD
Unknown
ComplicationsComplicationsOne-Piece with Haptics AcrylicOne-Piece with Haptics Acrylic
• Incorrect lens powerIncorrect lens power• Dislocation / decentrationDislocation / decentration
0%
5%
10%
15%
20%
25%
30%
35%
One Piece with Haptics,Acrylic
% o
f C
om
pli
ca
tio
n
Calcification/opacification
Damaged IOL - Cracked or torn duringinsertion
Dislocation/Decentration
Glare/optical aberrations
Incorrect lens power
Infection/endophthalmitis
Operative complications
Removed during retinal surgery
Retinal problems/RD
Unknown
ComplicationsComplicationsThree-Piece HydrogelThree-Piece Hydrogel
• Calcification / opacificationCalcification / opacification• Damaged IOLDamaged IOL
0%
5%
10%
15%
20%
25%
30%
35%
40%
45%
Three Piece,Hydrogel
% o
f Co
mp
licat
ion
Calcification/opacification
Damaged IOL - Cracked or torn duringinsertionDislocation/Decentration
Glare/optical aberrations
Incorrect lens power
Infection/endophthalmitis
Operative complications
Removed during retinal surgery
Retinal problems/RD
Unknown
ComplicationsComplicationsOne-Piece with Haptics HydrogelOne-Piece with Haptics Hydrogel
• Calcification / opacificationCalcification / opacification
0%
10%
20%
30%
40%
50%
60%
One Piece w ith Haptics,Hydrogel
% o
f Com
plic
atio
n
Calcification/opacification
Damaged IOL - Cracked or torn duringinsertionDislocation/Decentration
Glare/optical aberrations
Incorrect lens power
Infection/endophthalmitis
Operative complications
Removed during retinal surgery
Retinal problems/RD
Unknown
ComplicationsComplicationsMultifocal SiliconeMultifocal Silicone
• Glare / optical aberrationsGlare / optical aberrations
• Incorrect lens powerIncorrect lens power
0%
10%
20%
30%
40%
50%
60%
Multifocal,Silicone
% o
f C
om
plic
ati
on
Calcification/opacification
Damaged IOL - Cracked or torn during insertion
Dislocation/Decentration
Glare/optical aberrations
Incorrect lens power
Infection/endophthalmitis
Operative complications
Removed during retinal surgery
Retinal problems/RD
Unknown
Pre-operative Visual AcuityPre-operative Visual Acuity20052005
0%
10%
20%
30%
40%
50%
60%
Mult
ifoca
l,Silic
one
One P
iece (
plate)
,Silic
one
One P
iece w
ith H
aptic
s,Acr
ylic
One P
iece w
ith H
aptic
s,Hyd
roge
l
Three
Piec
e,Acr
ylic
Three
Piec
e,Hyd
roge
l
Three
Piec
e,Silic
one
% o
f V
isu
al A
cu
ity
20/20 - 20/40
20/200 - 20/400
20/50 - 20/100
Unknown
Worse than 20/400
Post Explant Visual AcuityPost Explant Visual Acuity20052005
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Mult
ifoca
l,Silic
one
One P
iece (
plate
),Silic
one
One P
iece w
ith H
aptic
s,Acr
ylic
One P
iece w
ith H
aptic
s,Hyd
roge
l
Three
Piec
e,Acry
lic
Three
Piec
e,Hyd
roge
l
Three
Piec
e,Silic
one
% o
f V
isu
al A
cu
ity
20/20 - 20/40
20/200 - 20/400
20/50 - 20/100
Less than 20/400
Unknown
DiscussionDiscussionFoldable IOL ComplicationsFoldable IOL Complications
• Dislocation/decentration overall Dislocation/decentration overall most common reason for IOL most common reason for IOL explantationexplantation
• Followed by incorrect lens powerFollowed by incorrect lens power
• Damaged IOLDamaged IOL
DiscussionDiscussionFoldable IOL ComplicationsFoldable IOL Complications
• Continuing trends in complications Continuing trends in complications over eight years over eight years
• Several differences in complications Several differences in complications over this period of timeover this period of time
Three-Piece, SiliconeThree-Piece, Silicone
0%
10%
20%
30%
40%
50%
60%
70%
80%
Damaged IOL - cr acked/ tor n
dur ing inser tion
Dislocation/ decentr ation Glar e/ optical aber r ations Incor r ect lens power
1998
1999
2000
2001
2002
2003
2004
2005
Three-Piece, AcrylicThree-Piece, Acrylic
0%
10%
20%
30%
40%
50%
60%
70%
Dislocation/decentration Glare/optical aberrations Incorrect lens pow er
1998
1999
2000
2001
2002
2003
2004
2005
One-Piece (Plate) SiliconeOne-Piece (Plate) Silicone
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Damaged IOL - Cracked/tornduring insertion
Dislocation/decentration Incorrect lens power
1998
1999
2000
2001
2002
2003
2004
2005
DiscussionDiscussionFoldable IOL ComplicationsFoldable IOL Complications
• Calcification of hydrophilic acrylic Calcification of hydrophilic acrylic (hydrogel) IOLs the next most common (hydrogel) IOLs the next most common reason for explantationreason for explantation
• Calcification on both the lens surface as Calcification on both the lens surface as well as substance of the lenswell as substance of the lens
DiscussionDiscussionFoldable IOL ComplicationsFoldable IOL Complications
• Glare/optical aberration continues Glare/optical aberration continues to be seen as a reason for IOL to be seen as a reason for IOL removalremoval
• Other reasons such as damaged Other reasons such as damaged IOL during insertion seen less IOL during insertion seen less frequentlyfrequently
ConclusionsConclusionsAvoidance of Complications Using Avoidance of Complications Using Foldable IOLsFoldable IOLs
• Good surgical technique essentialGood surgical technique essential
• CCC with capsular bag fixation of the CCC with capsular bag fixation of the IOLIOL
ConclusionsConclusionsAvoidance of Complications UsingAvoidance of Complications UsingFoldable IOLsFoldable IOLs
• Need for accurate IOL Need for accurate IOL measurementsmeasurements
• Necessity for use of new Necessity for use of new technologies for axial length technologies for axial length measurements and calculationsmeasurements and calculations
ConclusionsConclusionsAvoidance of Complications UsingAvoidance of Complications UsingFoldable IOLsFoldable IOLs
• Ongoing vigilance regarding newer Ongoing vigilance regarding newer IOL materialsIOL materials
• Hydrophilic acrylic (hydrogel) IOLsHydrophilic acrylic (hydrogel) IOLs
ConclusionsConclusionsASCRS/ESCRS SurveyASCRS/ESCRS Survey
• Ongoing yearly data collectionOngoing yearly data collection
• Forms available by ASCRS/ESCRS Forms available by ASCRS/ESCRS fax on demand-web sitefax on demand-web site
• Please submit survey forms on Please submit survey forms on explanted foldable IOLsexplanted foldable IOLs
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