May 21, 2013
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Microincision IOLs demonstrate average rate of PCO formation

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PARIS — IOLs specifically designed for microincision cataract surgery did not show an above-average incidence of posterior capsule opacification, according to a study.

At the meeting of the French Society of Ophthalmology, Gilles Lesieur, MD, presented the analysis of a large series of 3,345 microincision cataract surgery (MICS) lenses. The series included the Akreos MICS (Bausch + Lomb) in 293 eyes, the CT Asphina (Carl Zeiss Meditec) in 558 eyes, the MicroSlim (PhysIOL) in 671 eyes and the Micro AY (PhysIOL) in 1,823 eyes.

Gilles Lesieur, MD

Gilles Lesieur

Patients implanted with the CT Asphina, MicroSlim and Micro AY lenses were aged between 77 and 80 years, and those implanted with the Akreos MICS lens were aged 73 years, which could potentially lead to a higher rate of PCO formation, according to Lesieur.

Biaxial MICS was performed in all cases. The follow-up occurred between 1 month and 62 months.

At 1 year, the PCO rate was at about 4% for all of the IOLs. At 2 years, the PCO rate increased to 40% with the Akreos MICS, compared to between 11% and 17% with the other lenses.

"The higher rate of PCO with Akreos MICS could be explained by the old optic edge design and lack of rigidity in the haptics. The changes made in 2010 will hopefully decrease PCO rate," Lesieur said.

Disclosure: Lesieur is a consultant to PhysIOL and Bausch + Lomb.