Implantation of a single-piece acrylic intraocular lens using an anterior
chamber maintainer
Tomoyuki Kunishige, Hisaharu Suzuki, Toshihiko Shiwa, Hiroshi Takahashi
Authors have no finacial interest.
Nippon Medical School
Backgrounds
The ophthalmic viscosurgical devices (OVDs) are now thought to be essential for safe phacoemulsification.
However, there are at least 2 concerns regarding OVD use.
The first is the intraocular presssure (IOP) elevation after the surgery if the OVD is left in the anterior chamber.
The second is the cost of the material because the OVDs are still expensive.
If the technique of implanting intraocular lens (IOL) without using OVD is available, it might be helpful to solve these problems.
Purpose
To examine a technique for implantation of
a single-piece acrylic IOL using an anterior
chamber maintainer instead of OVD.
Methods
・ Methods:
Male : Female = 3 : 3 (6 eyes)
Mean age : 76 years
After phacoemulsification was performed through a 2.8-mm superior sclerocorneal incision, an anterior chamber maintainer was inserted into the side port at 3 o'clock.
The NY-60 IOL was loaded with balanced salt solution (BSS) in the cartridge.
While maintaining the anterior chamber depth and the capsular bag by continuous BSS irrigation, the IOL was inserted.
All surgeries were performed by a single surgeon.
・ Subjects :
NY-60 ( iMics 1® )HOYA Injector System
NY-60single-piece acrylic IOL
Type-N18 cartridgeSetting the IOL in the cartridge
with BSS
The detail of the procedure
Insert the anterior chamber maintainer
Fill the cartridge with BSS
Implant the IOL
The IOL in the capsular bag
Results
In all cases, the IOL was smoothly inserted into the capsular bag without causing the collapse of the anterior chamber or the capsular bag. No serious intraoperative or postoperative complications were observed.
Discussion
• By using an anterior chamber maintainer, IOL can be inserted safely without using OVD. Also a new IOL cartridge system eliminate the OVD use for IOL setting. Taken together, this method can reduce the risk of the IOP elevation, and lessen the cost of OVD.
• One important point is that the IOL should be inserted carefully with checking the stability of the anterior chamber depth.
Implantation of a single-piece acrylic intraocular lens using an bimanual Irrigation aspiration. Harshul Tak, J Cataract Refract Surg, 2010
Shimizu, J Cataract Refract Surg, 2008
• The technique of IOL implantation into the capsular bag without OVD has been reported.
Implantation of a 3-piece silicone intraocular lens using an KS-VF disposable injector.
• The results of the present study agree with these reports.