Topcon LensAR

LensARTM Laser System

integrates proprietary automated biometry, advanced ocular imaging and measurement technology, 3D-CSI™ (Confocal Structured Illumination) with an advanced ultra short pulse laser.

LensARTM Laser System - The system is designed to bring a level of precision to the refractive cataract procedure never before thought possible by automating most of the manual incisions and allow for the reduction of ultrasound power required substantially, in all grades of cataracts. The system will perform the CCl's. LRI's. Capsulotomies and Lens Fragmentation automatically after taking a 3D image and accurately measure all of the ocular structures from the front surface of the cornea to the posterior surface of the lens.

Workflow
The LENSAR Laser System was designed for convenience and efficiency for the patient, surgeon and OR staff. The system is adaptable to different environments. It can be used directly in the OR to do the complete cataract procedure or placed in a laser suite adjacent to the OR. The physician can approach the patient from the superior or temporal position. This is due to the unique design and footprint with its retractable laser console and motorized main unit, requiring minimal patient movement. The laser moves to the patient, the patient does not move to the laser.

Patient docking
Proprietary, fluid filled, “no corneal touch” patient interface and servo-controlled docking system create a comfortable patient experience with a very low rise in IOP. The wide angle view allows for a variety of treatments according to surgeon preference. The two piece system is easy for the physician to use and dock. The suction ring is located on the patients’ sclera leaving the cornea untouched. Then the laser console and servo-controlled docking system is moved employing the joystick and aiming system to the patients’ eye in order to dock to the patient prior to imaging and treatment.

3D-CSI
3D-CSI is a unique automated imaging and measurement technology that allows high fidelity views of all the ocular surfaces from the anterior surface of the cornea to the posterior capsule of the lens. From this image all of the surfaces are automatically located, measured and the biometric values are provided. The imaging and measurement system utilizes ray tracing to automatically create a true 3D reconstruction of the patients’ anterior segment and treatment patterns are generated. CSI stands for “Confocal Structured Illumination”. The laser and optics are aligned, sharing the same pathway to eliminate errors in beam placement and delivery. The proprietary system varies the SLD scan rates creating four illumination zones to maintain the high resolution accounting for surfaces with different reflective properties. These zones are the central cornea, outer cornea to limbus (adjusting for reflectance light from pupil) anterior portion of the lens and posterior portion of the lens to account for different lens opacities. This allows the system to produce the highest quality images with greater depth of field and the software automatically initiates 3D reconstruction and treatment patterns for the entire procedure.

Anterior capsulotomy and lens fragmentation
As the proprietary 3D CSI diagnostic system has created a biometric reconstruction of the anterior segment, the software provides automatic placement options for size, shape and location of the anterior capsulotomy according to the true anatomy of the eye. This can make ELP (effective lens position) more predictable, improving patient outcomes by helping to control intraocular lens tilt and decentration. The treatment algorithms have been optimized for each cataract grade and this purpose designed integrated system is highly efficient and can eliminate or significantly reduce the amount of ultrasound energy required to complete the cataract removal. The proprietary 3D CSI diagnostic system improves treatment efficiency and safety significantly by automatically adjusting for any tilt and decentration of the crystalline lens that might be present through docking or patient anatomy.

More than 600 eyes have already been treated with the system in two principal investigational sites in Mexico and in the Philippines. A series of clinical papers have been produced and published on the treatment of crystalline lens with the LENSAR Laser System.