The Balanced Two-String Technique for Sulcus Intraocular Lens Implantation in the Absence of Capsular Support

Figure 3

AS-OCT measuring lens tilt and decentration in a patient with irregular eccentric pupil. The perpendicular line posterior to the middle of the scleral spur line (A) and limbus line (B) transects the ICA-line (C). The anterior IOL curvature (D) and the posterior IOL curvature (E) were geometrically blotted to produce angles. ICA-line extends between these two angles. Lens decentration = difference between the left and right component of the transected ICA-line (3.36 mm − 3.15 mm = 0.21 mm). Lens tilt = the subtended angle deduced from 90° (90°−87.2° = 2.8°).