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Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia
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Optical coherence tomography angiography for the anterior segment
Wen Di Lee1, Kavya Devarajan1, Jacqueline Chua1,2
11Singapore Eye Research Institute, Singapore National Eye Center, Singapore, Singapore.
Eye and Vision (London, England)
|February 19, 2019
Summary
Optical coherence tomography angiography (OCTA) is a promising non-invasive eye imaging technique. This review explores anterior segment OCTA (AS-OCTA) developments and challenges for improved ocular diagnostics.
Area of Science:
- Ophthalmology
- Medical Imaging
- Biomedical Engineering
Background:
- Optical coherence tomography angiography (OCTA) is a non-invasive imaging technique for ocular vasculature.
- OCTA provides high-resolution, depth-resolved images, making it suitable for anterior segment applications.
- Current OCTA systems are optimized for the posterior segment, posing challenges for anterior segment imaging.
Purpose of the Study:
- To review recent developments and clinical applications of anterior segment OCTA (AS-OCTA).
- To compare commercially available AS-OCTA systems.
- To discuss limitations and propose future directions for AS-OCTA technology.
Main Methods:
- Review of current literature on AS-OCTA.
- Comparison of existing commercial OCTA systems for anterior segment use.
- Analysis of challenges and limitations in adapting OCTA for the anterior segment.
Main Results:
- AS-OCTA has shown promise for imaging the cornea, iris, sclera, and conjunctiva.
- Several challenges exist in adapting posterior segment OCTA technology for anterior segment imaging.
- AS-OCTA offers potential for diagnosing corneal and iris pathologies and surgical planning.
Conclusions:
- AS-OCTA is a developing technology with significant potential for anterior segment eye imaging.
- Further advancements are needed to overcome current limitations and enhance clinical utility.
- AS-OCTA may become a common diagnostic tool in ophthalmology clinics in the future.
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