CLINICAL RESULTS WITH THE EC-1Y ... - Aaren Scientific
CLINICAL RESULTS WITH THE EC-1Y ... - Aaren Scientific
CLINICAL RESULTS WITH THE EC-1Y ... - Aaren Scientific
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<strong>CLINICAL</strong> <strong>RESULTS</strong><br />
<strong>WITH</strong> <strong>THE</strong> <strong>EC</strong>-<strong>1Y</strong>:<br />
satisfaction after one year<br />
JEAN-MICHEL BOSC, MD, FRANCE<br />
Georgina Rosca, MD , FRANCE
<strong>Aaren</strong> <strong>Scientific</strong> <strong>EC</strong>-<strong>1Y</strong><br />
(Formerly OII)<br />
• Technical presentation<br />
– The IOL<br />
• Implantation and difficulties<br />
– Glutting and coating<br />
• 1 year results<br />
– Clinical evaluation<br />
– Personal impressions
<strong>EC</strong>-<strong>1Y</strong> Single-Piece Iol<br />
Very good stability and prevention of PCO<br />
• Yellow hydrophobic acrylic<br />
material<br />
• New high-efficiency benzotriazole<br />
UV absorber<br />
• Bound azo-type yellow dye<br />
• Blue light filtered with percent<br />
transmission of approx 50% at<br />
450nm<br />
• Double square-edge around<br />
entire periphery<br />
• Finite Elemental Analysis (FEA)<br />
geometry designed to minimize<br />
capsular bag stretching, but to<br />
conform the optic edge for<br />
maximum capsular adhesion.
<strong>EC</strong>-<strong>1Y</strong><br />
Miyake Posterior Photos<br />
Alcon AcrySof<br />
<strong>Aaren</strong> <strong>Scientific</strong> <strong>EC</strong>-<strong>1Y</strong>
Implantation and difficulties<br />
Sticking haptic<br />
• Sticking is visco dependent :<br />
– HPMC : no problem<br />
– Provisc +<br />
– Duovisc+++<br />
– Healon ++<br />
– Visthesia +<br />
– Discovisc ++<br />
• Heparin treatment surface could be a solution?<br />
• Sticking management :<br />
– visco bimanual management (Hook and spatula)<br />
– manual releasing of the two surfaces haptic - optic<br />
haptic - haptic
Implantation <strong>EC</strong>1 Y and difficulties<br />
Coating of optic surface<br />
• Coating is cartridge dependent:<br />
– Alcon: no problem<br />
– Ophtec: no problem<br />
– Medicel ++<br />
– MDJ +++<br />
• Coating consequences : PCO ?<br />
• Prevention : preloaded heparin coated IOL ?
1 YEAR <strong>RESULTS</strong> <strong>WITH</strong> <strong>EC</strong>-<strong>1Y</strong><br />
<strong>CLINICAL</strong> EVALUATION<br />
Inclusion criterias<br />
• At least 50 years of age<br />
• Primary IOL implantation<br />
• No anterior segment pathology<br />
• No previous retinal detachment or retinal<br />
pathology<br />
• No ocular disorders that could possibly cause<br />
loss of VA
1 YEAR <strong>RESULTS</strong> <strong>WITH</strong> <strong>EC</strong>-<strong>1Y</strong><br />
<strong>CLINICAL</strong> EVALUATION<br />
Postoperative examination<br />
• Uncorrected and best corrected visual acuity<br />
• Slit – lamp examinations (assessement of lens<br />
positioning and transparency, glistenings or<br />
vacuoles)<br />
• Expected and unexpected complications<br />
• Results at 1 month, 6 months and 1 year
1 YEAR <strong>RESULTS</strong> <strong>WITH</strong> <strong>EC</strong>-<strong>1Y</strong><br />
<strong>CLINICAL</strong> EVALUATION: UCVA
1 YEAR <strong>RESULTS</strong> <strong>WITH</strong> <strong>EC</strong>-<strong>1Y</strong><br />
<strong>CLINICAL</strong> EVALUATION: BCVA<br />
6 months SE = -0.30 D<br />
12 months SE = -0.20 D
1 YEAR <strong>RESULTS</strong> <strong>WITH</strong> <strong>EC</strong>-<strong>1Y</strong><br />
<strong>CLINICAL</strong> EVALUATION<br />
Reported complications<br />
• There have been no significant complications<br />
related to the lens<br />
• No IOL decentration<br />
• No IOL opacities<br />
• No PCO<br />
• No glistenings or vacuoles
1 YEAR <strong>RESULTS</strong> <strong>WITH</strong> <strong>EC</strong>-<strong>1Y</strong><br />
PERSONAL IMPRESSIONS<br />
790 implantations<br />
• No PCO (1 YAG)<br />
• A-Constant : 118.4
CONCLUSIONS<br />
• <strong>EC</strong>-1yellow from OII lab. shows an excellent<br />
centration and very good behavior in the short<br />
term<br />
• IOL implantation easy and reproducible (incision<br />
2.2 mm)<br />
• Good visual outcomes<br />
• Next future developments : asphericity, heparin<br />
surface treatment, preloaded IOL<br />
• Future : Multifocality, toricity
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