Parameter | Definition |
---|---|
Anterior chamber depth (ACD) | The axial distance from the corneal endothelium to the anterior lens surface. (AB arrow in Fig. 1) |
Anterior chamber width (ACW) | The distance between the two scleral spurs. (CD arrow in Fig. 1) |
Trabecular iris angle (TIA) | An angle measured with the apex in iris recess and the arms of the angle passing through a point on the trabecular meshwork 500 µm away from the SS and the corresponding perpendicular point on the iris. (The angle between CE and CF lines in Fig. 1) |
Angle opening distance 500 and 750 µm (AOD500 and AOD750) | The length of a line drawn from the anterior iris to the corneal endothelium perpendicular to a line along the trabecular meshwork at 500 µm and 750 µm from the SS (EF and GH lines, respectively, in Fig. 1) |
Trabecular iris space area 500 and 750 µm (TISA500 and TISA750) | An area covering 500 µm and 750 μm located in the area between the cornea and the iris. (Purple area and purple + orange areas, respectively, in Fig. 1) |