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[Changes in subjective cyclodeviation and objective cycloposition after modified Harada-Ito operation in acquired
H D Schworm1, S Horstmann, T Ring
1Sektion Strabologie und Kinderophthalmologie, Ludwig Maximilians Universität.
Klinische Monatsblatter Fur Augenheilkunde
|June 30, 1998
Summary
The modified Harada-Ito procedure for acquired trochlear palsy showed similar subjective and objective cyclorotatory changes. Both measures demonstrated short and long-term regression, with objective changes exceeding over-correction.
Area of Science:
- Ophthalmology
- Strabismus Surgery
- Oculomotor Function
Context:
- Acquired trochlear palsy can lead to significant cyclodeviation.
- Previous studies investigated inferior oblique recession for similar conditions.
- The modified Harada-Ito procedure is a surgical option for specific types of strabismus.
Purpose:
- To compare subjective and objective cyclorotatory changes after a modified Harada-Ito procedure.
- To evaluate the efficacy of this surgical technique in acquired trochlear palsy.
- To analyze short-term and long-term outcomes.
Summary:
- Eight patients with acquired trochlear palsy underwent the modified Harada-Ito procedure.
- Subjective (Harms' tangent scale) and objective (fundus cyclometry) measurements were taken.
- Both subjective and objective cyclorotatory changes were comparable, with notable short and long-term regression observed.
Impact:
- Findings suggest the modified Harada-Ito procedure yields consistent subjective and objective outcomes in acquired trochlear palsy.
- The study highlights the phenomenon of regression post-surgery, with objective changes surpassing initial over-correction.
- Understanding these mechanisms is crucial for managing trochlear palsy and optimizing surgical results.