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Updated: May 14, 2026
10:46
Doppler Optical Coherence Tomography of Retinal Circulation
Published on: September 18, 2012
Dynamic gonioscopy using optical coherence tomography.
Frederic Matonti1, Elodie Chazalon, Elodie Trichet
1Ophthalmology Department, Aix-Marseille University, Hôpital Nord, Institut de Neurosciences de la Timone, Aix-Marseille University, Marseille, France. frederic.matonti@ap-hm.fr
Summary
Anterior segment optical coherence tomography (AS-OCT) effectively assesses dynamic anterior chamber angle changes with corneal indentation. This method aids in diagnosing narrow angles, especially when gonioscopy is challenging.
Area of Science:
- Ophthalmology
- Medical Imaging
- Anatomical Studies
Background:
- Anterior segment optical coherence tomography (AS-OCT) is a non-invasive imaging technique.
- Assessing dynamic changes in the anterior chamber angle is crucial for diagnosing glaucoma and other conditions.
- Traditional gonioscopy can be challenging in certain patient populations.
Observation:
- A prospective observational study utilized AS-OCT to image 21 eyes.
- Corneal indentation was applied centrally, followed by a repeat AS-OCT scan.
- The reopening of the anterior chamber angle and its measurements were evaluated post-indentation.
Findings:
- AS-OCT provided accurate indirect signs for diagnosing plateau iris, confirmed by ultrabiomicroscopy.
- Corneal indentation resulted in a significant increase in measured anterior chamber angle widths.
- The technique demonstrated efficacy in visualizing dynamic angle changes.
Implications:
- AS-OCT with corneal indentation offers a convenient and rapid method for assessing anterior chamber configuration.
- This approach can assist in the routine clinical evaluation and management of patients with narrow or closed angles.
- It provides a valuable alternative or adjunct to gonioscopy, particularly when interpretation is difficult.
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