Figure 3

An anterior segment optical coherence tomography (OCT) image showing optical biometer measurements. Measurements were made before cataract surgery along the vertex normal. The inset shows an external photograph with the location and direction of the OCT scan (green arrow). CT = corneal thickness, AQD = aqueous depth, LT = crystalline lens thickness, Lens-f = lens fornix, AR = angle recess, SS = scleral spur, N = nasal, S = superior, T = temporal, I = inferior.