Clinical application of anterior segment optical coherence tomography for angle-closure related disease

Anterior segment optical coherence tomography has the ability to acquire angle-to-angle cross-sectional anterior chamber images in a non-contact way, and this technology shows a good reproducibility for angle parameters. With the availability of image processing software, some novel anatomic parameters such as iris area, iris volume, anterior chamber area, anterior chamber volume, anterior chamber width, and lens vault have been evaluated for the diagnosis of angle-closure related disease. This review article will describe the definitions of these interior segment optical coherence tomography parameters and summarize recent findings about these parameters in diagnosing angle-closure disease.