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Vertical and cyclotorsional deviations following peribulbar anesthesia
A Neugebauer1, J Fricke, U Pink
1Zentrum für Augenheilkunde der Univesität zu Köln, Cologne, Germany.
Summary
Peribulbar anesthesia can cause motility disorders due to fibrotic changes in eye muscles. Orthoptic examination revealed hypotropia and deorsoadduction, suggesting targeted surgical recession for effective treatment.
Area of Science:
- Ophthalmology
- Neuroscience
Background:
- Peribulbar anesthesia is associated with motility disorders.
- The exact pathology of these motility disorders remains unclear.
- This study investigates the cause of motility issues post-peribulbar anesthesia.
Purpose of the Study:
- To investigate the cause of motility disorders following peribulbar anesthesia.
- To contribute to the understanding of the underlying pathology.
- To guide treatment strategies for these specific ocular motility dysfunctions.
Main Methods:
- Orthoptic examination of 16 patients experiencing diplopia after peribulbar anesthesia.
- Measurement of squint angle in nine directions of gaze.
- Bielschowsky's head-tilt test and motility analysis were performed.
Main Results:
- All patients presented with hypotropia and deorsoadduction.
- Minor cyclotropia was observed in conjunction with hypotropia.
- Bielschowsky's head-tilt test yielded predominantly neutral results.
Conclusions:
- Findings support a hypothesis of fibrotic muscular changes, particularly in the superior oblique and inferior rectus muscles.
- Orthoptic measurements align with the fibrotic change hypothesis.
- Low-dosage recession of affected fibrotic muscles is proposed as an effective treatment, yielding positive outcomes.