Symptoms & Diagnosis — the full library.
Symptoms & Diagnosis
All articles in Symptoms & Diagnosis
PPPD Criteria: Persistent Dizziness and Visual Triggers
PPPD causes persistent dizziness or unsteadiness, often worsened by movement or complex visual settings. Learn diagnostic criteria and treatment approaches.
8 min read
Intratympanic Steroids for Meniere Disease: When Are They Used?
Intratympanic steroids for Meniere disease guide by Dr. Porwal: indications, limits, hearing safety and escalation pathway.
5 min read
Meniere Low Salt Diet and Diuretics: What Patients Should Know
Meniere low salt diet and diuretics guide by Dr. Porwal: patient-safe expectations, monitoring, triggers and when medicines are considered.
5 min read
Oscillopsia Causes: Why Vision Seems to Bounce or Shake
Oscillopsia causes include vestibular, eye movement and neurological patterns. Learn bouncing vision symptoms, red flags and when specialist review helps.
5 min read
Central Positional Nystagmus vs BPPV: Patient Warning Signs
Central positional nystagmus can resemble BPPV but may have different eye-movement clues. Learn warning signs and why expert examination matters.
8 min read
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…
4 min read
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.
4 min read
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.
8 min read
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.
8 min read
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.
8 min read
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.
5 min read
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.
8 min read