Eyes with AL less than 22.50 mm were devided into the short AL group.

Eyes with AL between 22.50 to 25.50 mm were devided into the control group.

Eyes with AL more than 25.50 mm were devided into the long AL group.

This prospective cohort study collected data of patients who underwent bilateral or unilateral cataract surgery with the AT LISA tri 839MP implantation.

Manifest refraction was measured.

Uncorrected and corrected distance (5 m) visual acuity (UDVA, CDVA), uncorrected and distance-corrected intermediate (80 cm) and near (40 cm) visual acuity (UIVA, DCIVA, UNVA and DCNVA) were measured.

The defocus curve was measured with the additional spherical diopters from +2.00 D to -4.00 D in 0.50 D steps.

Using the OPTEC 6500 Vision Tester (Stereo Optical Co. Inc, Chicago, USA), the contrast sensitivity was conducted under four conditions, including photopic(85 cd/m2), mesopic(3 cd/m2), photopic with glare and mesopic with glare. Besides, there are five spatial frequencies (1.5, 3, 6, 12, and 18 cycles per degree [cpd]) under every condition.

OPD Scan-III (NIDEK, Inc.) can automatically recognize and locate the edge of the pupil and measure its position relative to the optic axis. After pupil dilation, the IOL decentration was measured through adjusting the edge of the pupil to the edge of the lens manually.

The subjective satisfaction was assessed by a self-made questionnaire, which evaluated the spectacle independence at different distances, the incidence of several adverse photic phenomena including glare, halo and starburst, and the overall satisfaction.