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Pre-, Intra-, and Post-Operative Evaluation of Extraocular Muscle Insertions Using Optical Coherence Tomography: A
Matthew S Pihlblad1, Andrew Troia2, Sapna Tibrewal3
1Department of Ophthalmology, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA 15224, USA. matthew.pihlblad2@chp.edu.
Journal of Clinical Medicine
|October 23, 2019
Summary
Optical coherence tomography (OCT) is a valuable tool for imaging rectus muscle insertions in pediatric strabismus surgery. This technology offers accurate pre-, intra-, and post-operative assessments, especially when muscle location is uncertain.
Area of Science:
- Ophthalmology
- Strabismus Surgery
- Medical Imaging Technology
Background:
- Optical coherence tomography (OCT) is extensively used in ophthalmology but under-researched in strabismus.
- Accurate imaging of rectus muscle insertions is crucial for strabismus surgery management.
Purpose of the Study:
- To investigate the utility of different OCT machines for imaging rectus muscle insertions in pediatric strabismus patients.
- To compare OCT measurements with intra-operative caliper measurements.
Main Methods:
- Utilized four OCT machines: Bioptigen, Spectralis HRA+OCT, Visante, and Zeiss Rescan 700.
- Imaged rectus muscle insertions pre-, intra-, and post-operatively.
- Compared OCT measurements against caliper distances obtained during surgery.
Main Results:
- OCT machines demonstrated moderate to good intraclass correlation coefficients (0.62-0.88) compared to intra-operative measurements.
- This study is the first to use an operating microscope with integrated intra-operative OCT for imaging rectus muscle insertions.
Conclusions:
- Optical coherence tomography is a beneficial tool for pre-, intra-, and post-operative strabismus surgery.
- OCT imaging of rectus muscle insertions is particularly useful in cases with prior surgery or unknown muscle location.
