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Ziemer LDV Z8 allows high-precision cataract surgery, shorter surgical times
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ISTANBUL — A new high-frequency femtosecond laser system for cataract surgery allows high-precision, efficient surgery and a fast, smooth workflow with the patient in one place throughout the procedure.
Bojan Pajic
“The combination of low energy and high pulse repetition rate differentiate the Ziemer LDV Z8 from previous systems. The spots overlap, making a real cut, with no tissue bridges,” Bojan Pajic, MD, PhD, said at the winter meeting of the European Society of Cataract and Refractive Surgeons.
Another unique feature is the Adaptive Pulse Management system, which selects a higher energy for the cornea and a higher energy for the lens.
A proprietary OCT system with automatic pupil and limbal recognition supports the surgery, providing three-dimensional viewing of the anterior segment.
“We have treated 235 consecutive patients. The new laser created free-floating capsulotomies, very precise in size. During fragmentation, excellent resection quality was obtained with different grades of cataract, from 2 to 4. Mean visual acuity improved from 20/60 preop to 20/25 postop,” Pajic said.
The new system also allows for relatively short operating times, with the patient comfortably remaining in the same position during both the laser and phaco stages of cataract surgery.
“In our series, the preparation of the laser required on average 3.6 minutes. Mean phaco time varied from 1.8 seconds with cataracts grade 1 to 4 to 1 second with grade 1 to 3. The laser procedure time was less than 50 seconds. The surgical session lasted about 20 minutes at the beginning of the learning curve, but after a few patients, it decreased to an average of 12 minutes. In our settings, the workflow remained the same as with conventional phaco, with no moving around of patient and doctor,” Pajic said.
Disclosure: Pajic reports no relevant financial disclosures.