For many researchers, eye-movement measures have become instrumental in rev
ealing the moment-to-moment activity of the mind during reading. In general
, there has been a great deal of consistency across studies within the eye-
movement literature, and researchers have discovered and examined many vari
ables involved in the reading process that affect the nature of readers' ey
e movements. Despite remarkable progress, however, there are still a number
of issues to be resolved. In this article, we discuss three controversial
issues: (1) the extent to which eye-movement behavior is affected by low-le
vel oculomotor factors versus higher-level cognitive processes; (2) how muc
h information is extracted from the right of fixation; and (3) whether read
ers process information from more than one word at a time.