Topognostic Tests
- Schirmer’s Test:
- Procedure: Folded strip of sterile filter paper is placed in the lower conjunctival fornix of both eyes.
- Evaluation: After 5 minutes, compare the wetted portion.
- Positive Result: Reduction of >30% on the affected side compared to the healthy side.
- Stapedial Reflex
Imaging and Audiological Tests
- CT & MRI of Temporal Bone: Identify fracture lines, cholesteatoma, or tumors (e.g., neuroma of the 7th or 8th nerve).
- Audiological Tests:
- Pure Tone Audiometry (PTA) & Speech Audiometry
- Tympanometry
- Auditory Brainstem Response (ABR)