Patient Education
Skew Deviation and the Test of Skew: A Central Vertigo Sign
Skew deviation is a vertical misalignment of the eyes and a central (brain-related) sign. Learn what the test of skew checks and why it can point away from the inner ear.
Patient education Journal
Vertigo and ENT patient guides
Browse patient education articles by Dr. Prateek Porwal on dizziness, balance, inner-ear and ENT concerns. Search the library or choose a topic below. Each article shows its own publication and update information.
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- 8
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- Dr. Prateek Porwal
- editorial owner
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Recent patient guides
Patient Education
Upbeat Nystagmus: What This Vertical Pattern Can Mean
Upbeat nystagmus explained: what it is, common and central causes, stroke/Wernicke red flags that make it urgent, and how doctors assess it.
Diagnostic Tests
Downbeat Nystagmus: Causes, Tests and Warning Signs
Downbeat nystagmus is an eye-movement sign that may point to central neurological causes. Learn associated symptoms and why prompt specialist assessment matters.
Diagnostic Tests
Gaze Evoked Nystagmus: Eye Movement Warning Sign
Gaze evoked nystagmus guide: side-gaze eye drift, symptoms, VNG testing, red flags, safety steps and when ENT/vertigo review is safer.
Diagnostic Tests
Nystagmus Types: Central vs Peripheral Eye Movements
Nystagmus means involuntary eye movements. Learn common patterns, how central and peripheral findings differ, warning signs and why examination matters.
Patient Education
Caloric Test Results: Unilateral Weakness, Directional Preponderance and vHIT
Understand unilateral weakness, directional preponderance, fixation suppression and why caloric and vHIT results may disagree without being contradictory.
Diagnostic Tests
Frenzel Goggles Nystagmus Test: Vertigo Eye Movement Guide
Frenzel goggles help clinicians observe nystagmus by limiting visual fixation. Learn what the test shows, its limits and when further assessment is needed.
Patient Education
Dynamic Visual Acuity Test Vertigo: Why Vision Blurs While Walking
Dynamic visual acuity test for vertigo, oscillopsia, walking blur and vestibulo-ocular reflex evaluation in a vestibular workup.
Diagnostic Tests
Rotary Chair Testing for Vertigo: When It Helps
Rotary chair testing for vertigo: when it adds value beyond VNG, what patients should track, safety red flags, and when ENT/vertigo review is safer.
Diagnostic Tests
VEMP Test Vertigo: cVEMP, oVEMP and Inner-Ear Nerve Pathways
VEMP test guide for vertigo: when cVEMP or oVEMP helps, what happens during the test, safety limits, results and next steps.
Patient Education
vHIT Test | Dr. Prateek Porwal ENT Guide
Video head impulse test guide by Dr. Porwal: VOR gain, catch-up saccades, vertigo diagnosis, limits and when it helps.
Patient Education
Tilt Table Test Syncope: What It Shows and When It Helps
Tilt table test syncope guide by Dr. Porwal: what the test shows, when it helps fainting, and how it differs from VNG vertigo testing.