Nystagmus EXPLAINED 👀 | Visualizing & Interpretation

The video tutorial provides a comprehensive understanding of nystagmus, focusing on its components: linear, torsional, and duration. It explains how to interpret these components using animations and real-life examples. The tutorial covers vertical and horizontal nystagmus, including geotropic and a geotropic types, and emphasizes the importance of the fast beat in interpretation. It also discusses the use of special tests like the Dicks hallpike maneuver and horizontal roll test in diagnosing BPPV.

What are the three components of nystagmus that are crucial for understanding BPPV?

• Linear, torsional, and duration

• Vertical, horizontal, and rotational

• Fast, slow, and medium beats

• Geotropic, ageotropic, and neutral

Which type of nystagmus involves movement in a vertical or horizontal direction?

• Torsional nystagmus

• Linear nystagmus

• Rotational nystagmus

• Circular nystagmus

In vertical nystagmus, what determines if it is classified as upbeat or downbeat?

• The presence of torsion

• The direction of the fast beat

• The direction of the slow beat

• The duration of the nystagmus

What is the significance of the fast beat in interpreting nystagmus?

• It is less important than the slow beat

• It is used for interpretation and diagnosis

• It helps return the eyeball to its original position

• It indicates the duration of nystagmus

How is the affected side determined in torsional nystagmus?

• By the rotation of the superior part of the eye

• By the speed of the slow beat

• By observing the inferior part of the eye

• By the duration of the nystagmus

What is the reference point used in interpreting torsional nystagmus?

• The superior part of the eyeball

• The center of the pupil

• The lateral part of the iris

• The inferior part of the sclera

In horizontal nystagmus, what does 'geotropic' refer to?

• Slow beat towards the ceiling

• Fast beat towards the ground

• Fast beat towards the ceiling

• Slow beat towards the ground

What happens to the fast beat in ageotropic horizontal nystagmus?

• It moves towards the ground

• It moves towards the ceiling

• It remains stationary

• It alternates directions

How does head rotation affect the position of the eyes in horizontal nystagmus?

• It does not affect the position

• It makes both eyes closer to the ceiling

• It determines which eye is closer to the ground

• It causes both eyes to move upwards

In the context of BPPV, why is it important to observe both eyes during nystagmus testing?

• Only one eye will show nystagmus

• One eye will be stationary

• Both eyes will show different movements

• Both eyes should exhibit the same nystagmus