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Dissociated vertical deviation-a clinical and laboratory study
Transactions of the American Ophthalmological Society
|January 1, 1980
Summary
Dissociated vertical deviation (DVD) is a strabismus component. This study evaluated 1,000 patients, finding DVD characteristics and objective eye movement evidence.
Area of Science:
- Ophthalmology
- Neuroscience
- Clinical Research
Background:
- Dissociated vertical deviation (DVD) is a complex strabismus condition.
- Understanding its incidence and characteristics is crucial for effective management.
- Previous studies have established nomenclature and basic clinical features.
Observation:
- Evaluated 1,000 consecutive strabismus or nystagmus patients to determine DVD incidence.
- Conducted a detailed chart study of 111 identified DVD patients.
- Utilized electro-oculography to objectively measure ocular movement speed and amplitude in DVD patients.
Findings:
- Dissociated vertical deviation (DVD) was identified as an integral component of the broader strabismus spectrum.
- Objective electro-oculographic data confirmed the characteristic speed and amplitude of ocular movements in DVD.
- Compared clinical findings with associated phenomena like Bell phenomenon and Bielschowsky phenomenon.
Implications:
- Provides objective, quantifiable data on dissociated vertical deviation (DVD) characteristics.
- Enhances understanding of DVD's role within the overall strabismus classification.
- Informs surgical techniques and improves patient outcomes for DVD treatment.