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Anterior segment OCT
Published in Pablo Artal, Handbook of Visual Optics, 2017
The measurements of anterior chamber depth and anterior chamber angle are used in diagnosing glaucoma and planning of surgical interventions. OCT goniometry is based on measurements of several parameters characterizing the anterior chamber angle (Karandish et al., 2004, 2006, Radhakrishnan et al., 2005, Meinhardt et al., 2006, Nolan, 2008a, Fukuda et al., 2011, Leung and Weinreb, 2011, Tian et al., 2011, Radhakrishnan and Yarovoy, 2014).
Assessment of anterior segment measurements using a high-resolution imaging device
Published in Expert Review of Medical Devices, 2020
Robert Montés-Micó, Pedro Tañá-Rivero, Salvador Aguilar-Córcoles, Ramón Ruíz-Mesa
Specifically, anterior chamber angle (ACA) at 500 and 750 (defined as the perpendicular distance from a point on the posterior corneal surface that is 500 and 750 μm anterior to the scleral spur and the anterior surface of the iris, respectively), scleral spur angle (SSA) at 500 and 750 (defined as the angle measured at the conjunction of the line connecting the scleral spur to the AOD 500 or AOD 750 iris endpoint and the line connecting the scleral spur to the AOD 500 or AOD 750 corneal endpoint, respectively), angle opening distance (AOD) at 500 and 750 (defined as the perpendicular distance from a point on the posterior corneal surface that is 500 or 750 μm anterior to the scleral spur and the anterior surface of the iris, respectively) and trabecular iris space area (TISA) at 500 and 750 (trapezoidal area that is defined by the following boundaries: AOD 500 or AOD 750, the inner corneoscleral wall and the perpendicular distance between the scleral spur and the iris, respectively). Figure 2 was created showing the different angles, distances, and areas.