Chapter 2: Descriptive Information
Page 22
Component
Description
Replaceable
Lenses
The glasses come with two sets of
lenses, clear and dark. You will
receive the glasses with the dark
lenses installed, but they can
easily be replaced with the clear
lenses. You can tell the lenses
apart as the dark lenses have a
notch on the lower outside corner
of the lens. The clear lenses do
not have a notch.
Travel Case
The travel case is used to safely
store and transport the VPU,
glasses and batteries.
Argus 2s System Wireless Information
The Argus 2s Glasses use wireless technology to power the
implant and to send and receive information from the
implant. Table 4 below describes information about the
wireless technology used in the Argus 2s system.
Table 4: Wireless Technology Specifications
Frequency
(to the implant)
3.156 Megahertz (MHz)
Frequency
(from the implant)
473
– 490 Kilohertz (KHz)
