A bobbing eye, specifically referring to ocular bobbing, is an infrequently observed abnormal eye movement characterized by sudden, conjugate downward jerks of both eyes from a central resting position.
Characteristics of Ocular Bobbing:
Ocular bobbing is typically seen in comatose patients and is defined by these key features:
- Sudden Downward Movement: The eyes quickly move downwards.
- Conjugate Movement: Both eyes move together in the same direction.
- Slow Return: The eyes slowly drift back to their original, central position.
- Association with Coma: It's most commonly observed in patients who are in a coma.
Historical Context
Ocular bobbing was first described by Fisher in 1959.
Clinical Significance
The presence of ocular bobbing often indicates significant neurological damage, particularly involving the pons (a part of the brainstem). It's a crucial observation for neurologists evaluating comatose patients as it can help pinpoint the location and severity of brain injury.
