Description
Optimized Energy
The high-precision Super-Gaussian beam profile of the Zeiss Visulas Yag III focuses the optimum amount of laser energy onto the point of treatment: only as much as necessary. This allows successful optical breakdown (disruption) to occur at just 2.5 mJ in air. In turn, this will enable you to provide sensitive, high-precision treatment to your patients with minimal laser energy. The pulse repetition frequency of 2.5 Hz also facilitates a fast workflow and short treatment times.
Fine Adjustment of Energy
With 22 levels of energy attenuation, the ZEISS VISULAS YAG III offers ample flexibility for various treatment techniques. The fine gradations at the lower end of the output range enable optimal regulation of laser energy for the sensitive, minimally invasive treatment of your patients.
Accurate Focusing
The variable focus shift sets the focal point of the aiming beam precisely and reproducibly before, behind or directly at the focal point of the disruption laser. No more clumsy, manual de-focusing based on the position of the ear membrane.ย Thanks to this โsafety distanceโ, damage to the tissue and intraocular lens during treatment is now also a thing of the past. This means greater comfort for you and your patients.
VISULAS YAG III
Hitting the target within 4 nanoseconds.
Fast. Simple. Successful.
For posterior capsulotomy or for iridotomy: the VISULASยฎ YAG III gets straight to the point. Its smooth power makes it ideal for use in ophthalmic practices โ even busy ones with high patient volume.
Laser Integrated Slit Lamp
The high-grade laser beam source of the VISULAS YAG III is fully integrated into the laser slit lamp. A top-quality ZEISS product, the laser slit lamp was designed primarily for use in laser therapy, yet can also be used as a fully-equipped diagnostic slit lamp. Its lowered illumination prism, short corneal microscope, and slim design make it ideal for daily clinical use.
Precision Targeting
The unique 4-point aiming beam of the ZEISS VISULAS YAG III ensures high aiming accuracy. Astigmatic distortions are clearly highlighted by the 4-point aiming beam, and the selected energy level can be corrected accordingly before the laser beam is fired. The advantages are apparent: gentler treatment for your patients and extended lifetime for the laser source by avoiding โdouble firingโ.
Perfectly coordinated processes. The flexibly positionable control panel is the intelligent nerve center of the ZEISS VISULAS YAG III. Its compact format offers a convenient, user-friendly interface. The laser energy is always clearly visible on the illuminated and reflection-free touchscreen. The selected laser parameters can be finely adjusted using the ergonomically designed rotary knob.
Technical Specifications
| Specification | Description / Value |
| Laser source | Nd:YAG laser, flash-lamp-pumped, Q-switched |
| Wavelength of the therapy beam | 1064 nm |
| Beam profile | Super-Gaussian |
| Optical breakdown (typical) | 2.5 mJ in air |
| Pulse duration | < 4 ns (typically 2-3 ns) |
| Pulse mode / Energy levels | Single pulse: e.g., ~9-13 mJ at max 2.5 Hz; Double pulse: ~18-28 mJ at max 1 Hz; Triple pulse: ~29-45 mJ at max 1 Hz |
| Pulse repetition frequency | Up to 2.5 Hz |
| Energy attenuation levels | 22 levels |
| Focus shift between the aiming and the therapy beam | 0 / +150 ยตm / -150 ยตm (variable) |
| Aiming beam system | 4-point aiming beam (merge into one point at the laser focal plane) |
| Focus diameter in air | 10 ยตm |
| Slit-lamp (Laser slit lamp) specifications | Magnifications: 5x / 8x / 12x / 20x / 32x; Slit width: 0-14 mm continuously; Slit height: 1 / 3 / 5 / 9 / 14 mm; Slit image rotation: 0ยฐ / ยฑ45ยฐ / ยฑ90ยฐ |
| Aiming beam wavelength / power | Approx. 660-680 nm (diode), 4-point/2-point switchable; power ~5 ยตW-150 ยตW |
| Electrical connection / Power supply | 100-240 V AC, 50/60 Hz |
| Dimensions (Laser console) | Approx. 201 mm H ร 230 mm W ร 290 mm D |
| Weight | โค 8 kg (laser module) |









