Ziemer USA, CorneaGen launch GALILEI CTAK module for GALILEI diagnostic platform

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The module can be used in combination with Ziemer’s FEMTO LDV Z8 femtosecond laser platform, an all-in-one laser for refractive, cataract, and therapeutic surgery.

Ziemer GALILEI G6 ColorZ Image credit: Ziemer Ophthalmology

Ziemer GALILEI G6 ColorZ Image credit: Ziemer Ophthalmology

In partnership with CorneaGen, Ziemer USA has launched its GALILEI CTAK module, now available for use with the GALILEI diagnostic platform.1 The module can be used in combination with Ziemer’s FEMTO LDV Z8 femtosecond laser platform, an all-in-one laser for refractive, cataract, and therapeutic surgery that can also be used for corneal tissue addition for keratoplasty (CTAK) procedures, according to a news release.

The module is now available in the US market, but will require a software update to existing GALILEI systems.1

“We are thrilled to complete our product offering for CTAK patients,” said David Bragg, president of Ziemer USA, in the release. “With the addition of the GALILEI CTAK module in combination with our FEMTO LDV Z8 femtosecond laser platform, we can now provide surgeons and patients with a fully integrated surgical solution aimed at restoring vision and improving outcomes.”

The GALILEI diagnostic device is available as the GALILEI G6 ColorZ and the GALILEI G4 ColorZ, which both feature Dual Scheimpflug Tomography and Placido Topography. The G6 model includes an optical biometer to measure lens thickness and axial length for intraocular lens (IOL) power calculation. The devices are outfitted with 2 Scheimpflug cameras, greatly reducing anterior segment measurement time and improving data accuracy, according to Ziemer. Maps and data are all aligned to the same reference point: the 1st Purkinje reflex. The OCT-based optical A scan measures central corneal thickness, anterior chamber depth, lens thickness, and axial length in a single exam. Measuring lens thickness and axial length together with precise anterior and posterior corneal power maps and corneal wavefront analysis allows for IOL planning.2

“The integration of CTAK with the Ziemer GALILEI diagnostic platform marks a significant step forward in the precision and personalization of keratoconus treatment,” said Peter S. Hersh, MD, the originator of CTAK, in the release. “By combining high-resolution corneal tomography with laser-guided stromal inlay preparation, we can deliver an anatomically optimized and patient-specific approach to corneal reshaping. Such technological innovation moves us to safer, more predictable, and meaningful improvements in visual function for patients with keratoconus.”

The FEMTO LDV Z8 laser works by administering lasers at a very high repetition rate and overlapping, precise spots with very low pulse energy. The laser can also be utilized for intraoperative optical coherence tomography (OCT) imaging, which provides a live view through all stages of the refractive, cataract, or therapeutic procedure. Intraoperative COT imaging also allows for automated ocular surface mapping and edge detection. The accurate detection of eye structures that the imaging provides “ensures less manual adjustments to the planned cuts after docking, streamlining the FEMTO procedure and providing an excellent patient experience,” according to Ziemer.3

The company stated that FEMTO models of the laser are ideal for tailor-made keratoplasties, supporting both lamellar and penetrating keratoplasties. Specifically, different lamellar keratoplasties possible with the FEMTO models include DALK, DSEK, and UT-DSEK, and mushroom, top-hat, and straight penetrating keratoplasties. Additionally, a new Arcuate Resection module allows eye care providers to create customized crescent shapes within the cornea.4

“At CorneaGen, our mission goes beyond innovating affordable technologies and treatments – it’s about expanding access to innovations for patients around the world,” said Bernie Iliakis, CorneaGen CEO, in the release. “Our partnership with Ziemer and the integration of their advanced GALILEI imaging systems mark a pivotal step in this journey.”

References:
  1. Ziemer USA Inc announces new innovations for the GALILEI diagnostic platform and FEMTO LDV Z8 femtosecond laser platform. News release. Ziemer Ophthalmology. July 24, 2025. Accessed July 28, 2025. https://www.ziemergroup.com/us/news/58/ziemer-usa-inc-announces-new-innovations-for-the-galilei-diagnostic-platform-and-femto-ldv-z8-femtosecond-laser-platform/
  2. GALILEI G6 ColorZ. Ziemer Ophthalmology. Accessed July 28, 2025. https://www.ziemergroup.com/us/products/diagnostic-devices/galilei-g6/
  3. Laser Systems. Ziemer Ophthalmology. Accessed July 28, 2025. https://www.ziemergroup.com/us/products/laser-systems/
  4. Keratoplasties. Ziemer Ophthalmology. Accessed July 28, 2025. https://www.ziemergroup.com/us/applications/keratoplasties/

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