Operator's Manual

Introduction
Z370584 Rev. C Device Description
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the depth of penetration of the energy field is less than that of lower frequency units, which
minimizes tissue shrinkage or charring. The gentleness of the Diathermy mode allows the
surgeon to stop “bleeders” within the incision with only minimal scleral shrinkage.
CASE One Touch
The One Touch button simplifies the programming of the CASE function and allows you to
easily define the basic CASE settings once. You can adjust the CASE function with the CASE
One Touch settings on the surgical screens. When you use these controls, the CASE
functionality changes to provide enhanced control or improved efficiency to suit any
particular combination of cataract density, surgical technique or personal preferences.
See “CASE One Touch” on page 6-35.
FUSION Fluidics System
The system has both a flow-based peristaltic pump system and a vacuum-based Venturi
pump system. The patented microprocessor-based system continuously monitors and
controls intraocular conditions of the flow and vacuum in the eye.
Chamber Stabilization Environment (CASE)
CASE is an intelligent vacuum monitoring system that regulates the maximum allowable
vacuum used following the occlusion of the phaco tip. When the phaco tip becomes
occluded, the vacuum rises. Clearing of the occlusion while the vacuum is at a high-level can
lead to a post occlusion surge. When CASE is on, the system monitors the actual vacuum
levels. When the vacuum exceeds a specific threshold for a specified duration, the system
automatically adjusts the maximum allowable vacuum setting to a lower predefined CASE
maximum vacuum level. When the occlusion clears, the system automatically restores the
settings to the original programmed maximum vacuum setting. This function makes it
possible to have a different maximum vacuum setting when the tip occludes than when the
tip is unoccluded.
VERITAS Vision System Components
VERITAS Remote Control
The surgery can be controlled from the wireless VERITAS Remote Control keypad. You can
access all surgical modes and adjust all surgical settings with the use of the wireless
VERITAS Remote Control.
Foot Pedal
The foot pedal controls the various operating modes of the instrument. You can program the
foot pedal settings through the user interface. You can use either the VERITAS Foot Pedal,
Single Linear Foot Pedal, Advanced Control Pedal, or the Advanced Linear Pedal with the
system.
The foot pedal design offers control through the use of increased linearity with the foot pedal
movement. The design provides uniform pressure throughout the foot pedal movement,
easing foot and leg fatigue. You can select the degrees of movement for each foot pedal
position. You can save the settings for each surgeon/mode, pitch for the VERITAS Foot