Vertigo & Dizziness — the full library.
Articles on vertigo & dizziness — written for patients and for other clinicians.
All articles in Vertigo & Dizziness
Frenzel Goggles Nystagmus Test: Why Vertigo Doctors Use Them
Frenzel goggles nystagmus guide by Dr. Porwal: how goggles reveal hidden eye movements in vertigo and why fixation matters.
4 min read
Dynamic Visual Acuity Test Vertigo: Why Vision Blurs While Walking
Dynamic visual acuity test vertigo guide by Dr. Porwal: oscillopsia, VOR function, walking blur, bilateral vestibular loss and rehab planning.
4 min read
Rotary Chair Test Vertigo: When Balance Testing Needs More Than VNG
Rotary chair test vertigo guide by Dr. Porwal: bilateral vestibular loss, VOR testing, when it helps and how it differs from VNG.
4 min read
VEMP Test Vertigo: cVEMP, oVEMP and Inner-Ear Nerve Pathways
VEMP test vertigo guide by Dr. Porwal: cVEMP, oVEMP, saccule, utricle, superior canal dehiscence and test safety.
4 min read
vHIT Video Head Impulse Test: What It Shows in Vertigo
vHIT video head impulse test guide by Dr. Porwal: VOR gain, catch-up saccades, vertigo diagnosis, limits and when it helps.
4 min read
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.
4 min read Cardiac Syncope Red Flags: When Dizziness May Be a Heart Warning
Cardiac syncope red flags guide by Dr. Porwal: fainting with exertion, chest symptoms, palpitations, abnormal ECG and urgent care signs.
4 min read Orthostatic Syncope Standing Dizziness: Fainting When Standing Up
Orthostatic syncope standing dizziness guide by Dr. Porwal: blood pressure drops, near-fainting, testing, treatment and warning signs.
5 min read Presyncope Near Fainting: Blackouts and Dizziness Before Collapse
Presyncope near fainting guide by Dr. Porwal: blackout feeling, standing dizziness, warning signs and when urgent care is needed.
5 min read Vasovagal Syncope and Dizziness: Why Some People Faint Suddenly
Vasovagal syncope dizziness guide by Dr. Porwal: triggers, warning symptoms, fainting prevention, red flags and vertigo differences.
5 min read Syncope vs Vertigo: How to Tell Fainting From Inner-Ear Spinning
Syncope vs vertigo explained by Dr. Porwal: fainting, blackout, spinning vertigo, red flags and when ENT or cardiac review is needed.
6 min read