Measurements of IOL position
IOL, CORNEA
IOL position (tilt and decentration) will be measured using CASIA2 or Pentacam connected to a digital Scheimpflug rotational camera as previously described [The anterior and posterior surfaces of the cornea and both IOLs will be marked in the digital image to determine the visual axis of the eye and the optical axis of the IOL.The tilt of the optical axis of the IOL relative to the visual axis and the distance between the IOL vertex and the visual axis will be calculated using Image-Pro plus 6.0 (Media Cybernetics, MD, USA).