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Surgeon says disc-shaped IOLs more effective at avoiding cell migration
ROME — Disc-shaped IOLs that fill the bag are a more effective barrier to cell migration and posterior capsule opacification than square-edged lenses, according to one surgeon.
Andreas Borkenstein, MD, based this theory on the long-term outcomes of the old Ridley lenses, implanted as long as 57 years ago.
"They show the unusual phenomenon of virtually no PCO. It is a record that has never been acquired by any other lens type," Dr. Borkenstein said at the winter meeting of the European Society of Cataract and Refractive Surgeons.
The concept is that of "no space, no cells," he said.
The new Tecnis one-piece design (Advanced Medical Optics) with the Tri-Fix three-point fixation has an uninterrupted barrier square edge, designed to minimize cell migration, and no interruption at the haptic-optic junction.
"This design goes back to the concept of no space, no cells, without the bulkiness of Ridley lenses," Dr. Borkenstein said.