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White-to-white measurement no longer sufficient for sizing IOLs
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ROME — Measurement of the white-to-white distance can no longer be accepted as a sufficient method for sizing posterior or anterior chamber IOLs, according to Philippe Sourdille, MD.
“White-to-white does not correspond to the internal diameter, and it’s the internal diameter that we need to measure precisely,” he told attendees here at the winter refractive surgery meeting of the European Society of Cataract and Refractive Surgeons.
Dr. Sourdille emphasized that patients have the right to be given the best treatment that is currently available, “and we currently have the sophisticated, high precision technology for measuring scientifically both the anterior and posterior chamber, and sizing the IOLs accordingly,” he said.
“Single ophthalmologists cannot have all the instruments, but there are evaluation centers in universities and large private practices where patients can receive all the necessary preoperative tests,” Dr. Sourdille said. “If we want to improve the results, enlarge the indications and prevent the complications of intraocular implants, we certainly need to implement these services and make this technology more widely available to patients and surgeons. But in the meantime, we cannot rely on obsolete, imprecise and unsafe methods."