FEMTEC Femtosecond Laser Workstation

New generation femtosecond laser technology for ophthalmology

20/10 PERFECT VISION®, a worldwide leader in wavefront technology, brought you the first FDA-approved wavefront diagnostic device - the WaveScan®. Now we present you a highly innovative surgical laser system offering a variety of novel applications.

Other than conventional laser systems for corneal surgery, the FEMTEC femtosecond pulse laser technology of 20/10 PERFECT VISION uses infrared light with spot sizes as small as a few microns and laser pulse durations which are several orders of magnitude shorter than those of an Excimer laser.

The New Generation FEMTEC System brings you new additional functionalities and now incorporates:

• A faster laser engine for reduced procedure time
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• Upgraded optics for smooth, homogenous ablation using lower energy levels
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• New software features for even more procedure options
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• A radial force detector for optimizing patient position
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• A 2-parts spherical patient interface respecting anatomical structures for easy and secure docking
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Key features and benefits of the FEMTEC Femtosecond Laser Workstation:

• No applanation necessary due to patented spherical Patient Interface approach - cornea retains a near-natural curvature and unwanted IOP increases are reduced
• Computer controlled suction with footswitch activation and auto-off safety feature
• Broadest range of innovative treatment procedures
• Easy control of parameter settings via user friendly software
• „Tracker-friendly“ circular pattern algorithms
• High precision cuts in x,y and z-axis
• Computer controlled sensors for online pressure information
• Patient bed interfaced with lasersystem is included
• Integrated uninterruptible power supply

Download the FEMTEC Brochure 2007/8 ...here



FEMTEC's patented spherical interface

Covered by US Patent US 6.730.074

FEMTEC working principle

The result of a single FEMTEC femtosecond laser pulse is a microscopic bubble. A myriad of these pulses can create macroscopic effects, e.g. a laser generated LASIK flap or other cuts.

The real time software precisely arranges the laser pulses in predefined patterns, selectable in the FEMTEC software according to desired treatment procedures. To generate a LASIK flap for example, the laser spot is moved inside the cornea in a spiral pattern, creating a bladeless cut following stromal lamellae at the pre-programmed depth. Once the flapbed is formed, the beam is moved in arc-shaped patterns along the circumference of the flap, while the focal depth is gradually reduced. A perfectly defined edge of the flap is created, leaving a hinge at its user-defined position.

Due to the unique spherical design of the FEMTEC Patient Interface, a flattening of the cornea is not required during FEMTEC procedures. The cornea is only slightly adapted to the patient interface's curvature, not applanated.

The differences between an eye fixation using an anatomically correct shaped eye fixation and an applanating (flattening) eye fixation can bee seen with OCT Images (here using the same pig eye for demonstration purposes).

                
Normal eye shape (pig eye)

                
Eye fixation using FEMTEC's anatomically shaped spherical interface

               
Eye fixation using an applanation approach

               
FDA 510(k) clearance for the use in creation of a corneal flap in patients undergoing LASIK surgery or other treatment requiring initial lamellar resection of the cornea.