Information for Practitioners

Timothy C. Hain, MD • Page last modified: April 27, 2026

We think a better way to find stuff on this site is to use the built in local search (see above). But here is a short list including some off-site links..

Lecture handouts (continuing medical education level).

Dr. Hain gives lectures -- here are a selection of the handouts (mostly black/white). Dr. Hain's personal web page (https://tchain.com/cv/hain-t.htm) has a large selection.

Manual of ENG testing (under construction)

• nystagmus
  • congenital nystagmus
  • gaze evoked nystagmus , rebound
  • saccadic nystagmus
• saccades
• fixation
• caloric test
• tracking test
• vergence
• malingering
• head-impulse
• positional_nystagmus
• valsalva

How to obtain Frenzel goggles

Eye movement recording devices (EOG, IR, Eye-coil, Video)