Setting bookmarks. Use the bookmarks options to define bookmark levels, create bookmarks from paragraph tags, and set up article threading. 1. In the PDF Setup dialog box, choose Bookmarks from the pop-up menu, or click the Bookmarks tab (Windows/UNIX). 2. Select Generate PDF Bookmarks.
Horizontal Pendular Nystagmus. 1  Lesions of the central tegmental tract (such as due to MS) 2  Spasmus Nutans (can also be vertical, torsional) 3  Nystagmus of the blind.  Congenital nystagmus.
Nystagmus is a condition that causes involuntary, rapid movement of one or both eyes. It often occurs with vision problems. Nystagmus is a condition that causes involuntary, rapid movement of one or both eyes. It often occurs with vision problems. Read more.  Nystagmus often occurs with vision problems, including blurriness.