results of hydrophobic acrylic iol insertion through corneal microincisions smaller than 2.0 mm
DESCRIPTION
Results of Hydrophobic Acrylic IOL Insertion through Corneal Microincisions Smaller than 2.0 mm. Tomoichiro Ogawa, Takuya Shiba Hiroshi Tsuneoka Jikei University School of Medicine, Tokyo, Japan. Authors have no financial interests. iMics1. 6mm. Y-60H. AF-1 iMics1 ( HOYA ). - PowerPoint PPT PresentationTRANSCRIPT
Results of Hydrophobic Acrylic IOL Insertion
through Corneal Microincisions Smaller than
2.0 mmTomoichiro Ogawa, Takuya Shiba
Hiroshi Tsuneoka
Jikei University School of Medicine, Tokyo, Japan
Authors have no financial interests
AF-1 iMics1 ( HOYA )• Hydrophobic acrylic intraocular lens (IOL)• Implanted through corneal microincisions
Y-60HY-60HiMics1iMics16mm
AF-1 iMics1 ( HOYA )• Injector : ISH004(HOYA)• Cartridge : Type-N18 ( HOYA )
oPreferred incision size:Cornea, 2.0 mm; Sclera cornea, 1.8 mm
PurposeTo evaluate the safety and efficacy of
cataract surgery with implantation of the AF-1 iMics1 IOL through a corneal microincision
Subjects and Method• May - August 2009• Jikei University Hospital• Procedures: 69 eyes
• 1.7-mm ( inner scale ) corneal incision: 47 eyes• 2.0-mm ( inner scale ) corneal incision: 22 eyes
• Operative method• 1.4-mm temporal corneal incision • Bimanual phacoemulsification• Incisions enlarged to 1.7 or 2.0 mm • Implant AF-1 iMics1
Variables examined• Incision size ( before and after IOL
implantation )• Tsuneoka microincision gauge ( ASICO )
• Increased width of corneal incision after IOL implantation
• Surgery-induced corneal astigmatism ( Cravy method )• 1 month postoperatively
• Operative complications• Postoperative complications
0.310.22 0.25
0.1
0.2
0.3
0.4
1.9mm 2.2mm Y-60H (2.2mm)
(mm) *
**1.7 mm 2.0 mm
Results
**2008. Ogawa. ESCRS.
2.272.052.09
1.791.5
1.7
1.9
2.1
2.3
pre post pre post
1.7mm 2.0mm
(mm)
Wound width
Increased wound width
P=0.0025Mann-Whitney U-test
*
Results
0.031
-0.057
0.039
0.580
0.200
-0.1
0.1
0.3
0.5
1.9mm 2.2mm Y-60H(2.2mm)
SA60AT(C)(2.2mm)
SN60WF(C)(2.2mm)
(D)
** ** **
* NSSurgery- induced corneal
astigmatism
*Mann-Whitney U-test
**2008. Ogawa. ESCRS.
1.7mm 2.0mm
Results 1.7 mm 2.0 mm
Posterior capsulerupture 0 eye/47 1 eye/22Wound
self-healing 100% 100%
1.7 mm 2.0 mmIOL decentration 0% 0%
Cysticmacula edema 0% 0%
Woundself-healing 100% 100%
Operative complications
Post- operative
complications
DiscussionsPosterior capsule rupture
Tip of cartridge is too deep in anterior chamber and too close to posterior capsule
Insertion of cartridge
Tip of cartridge
Tacking tips of both forward and back hapticsО Full length of IOL is greater than that of other foldable
1-piece IOLsAF-1 iMics1 is stiffer
AF-1 iMics1 SN60WF
Full length is greater
IOL is released near posterior capsule
Posterior capsule ruptureIOL implantation
IOL goes through posterior capsule
Posterior capsule ruptures
ConclusionAF-1 iMics1 ( HOYA )
• Implanted through corneal incision < 2.0 mm• Little surgery-induced astigmatism • Wound self-healing• Carefully position tip of cartridge