Fig. 6

The determination of ICL haptic related parameters on the ultrasound biomicroscopy.1 = Corneal endothelium to ICL haptic (enCornea-ICL haptic) is defined as the length of line extending from the central point of corneal endothelium perpendicularly through ICL haptic plane;2 = The posterior of the ICL to ICL haptic (ICL arc) is the vertical distance from the posterior surface of ICL to the ICL haptic plane; 3 = The height of the crystalline lens from the ICL haptic(Lens arc) is measured from the anterior pole of the lens perpendicularly to the ICL haptic plane; 4 = The ICL haptic diameter (HTH) is the horizontal distance of the two final tip of the ICL haptics; 5 = The final tip of ICL haptic (ftICL haptic) is defined as the perpendicular distance from scleral spur to the parallel line which passing through the final tip of the ICL haptic; 6 = The lowest point of ICL haptic(lpICL haptic) is defined as the vertical distance from scleral spur to the ICL haptic plane; ICL haptic plane is the line which passing through the lowest reflection of two ICL haptics; SS = scleral spur; ft = the final tip of ICL; lp = the lowest point of ICL