Chapter 6: Additional Information
Page 97
down, left to right, diagonally to the left or
diagonally to the right. Subjects had to say which
direction the stripes were drawn. When using the
Argus II System, 8 of the 30 subjects could
correctly tell the direction of the stripes. When not
using the Argus II System, none of the subjects
could do this test correctly.
Line and Door Tests
The line and door tests were used to test how well
subjects could follow a white line on the ground
and find the door in a room. At every follow-up visit
after implant, subjects were better at doing these
tasks when using the Argus II System versus
when they were not using the Argus II system.
Use of Argus II System in Daily Life and Quality of
Life
Subjects completed two surveys to measure the
effect of the Argus II System on their quality of life
and their everyday life. One survey, the Massof
Activity Inventory, showed that during the study,
subjects reported a small improvement in how
easy it was for them to do everyday tasks. The
other survey showed no change in quality of life
during the study.
A low-vision therapist also spoke with the subjects
and visited their homes to judge what affect the
Argus II System was having on subjects’ lives.
