AcrySof® IQ ReSTOR® +2.5 D Multifocal Intraocular Lens (IOL) Model SN6AD2 [SV25T0] in Japan

Visual acuity (VA) was tested monocularly (each eye separately) at all visits and binocularly (both eyes together) at Day 30-60, Day 120-180, and Day 330-420 unaided at a distance of 5 meters (m) using a chart. VA was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

VA was tested monocularly at all visits and binocularly at Day 30-60, Day 120-180, and Day 330-420 unaided at a distance of 50 centimeters (cm) using a chart. VA was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

VA was tested monocularly at all visits and binocularly at Day 30-60, Day 120-180, and Day 330-420 with the participant's best spectacle correction at a distance of 5 m using a chart. VA was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

VA was tested monocularly at all visits and binocularly at Day 30-60, Day 120-180, and Day 330-420 with the participant's best spectacle correction at a distance of 50 cm using a chart. VA was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

VA was tested monocularly at the preoperative, Day 30-60, Day 120-180, and Day 330-420 visits and binocularly at Day 30-60, Day 120-180, and Day 330-420 using a chart. Distance-corrected VA at 50 cm is the VA at 50 cm measured under a corrected condition in which best-corrected VA at 5 m was obtained. VA was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

VA was tested binocularly unaided at a distance of 1 m using a chart. VA was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

VA was tested binocularly using a chart. Distance-corrected VA at 1 m is the VA at 1 m measured under a corrected condition in which best-corrected VA at 5 m was obtained. VA was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

VA was tested binocularly unaided at a distance of 40 cm using a chart. VA was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

VA was tested binocularly using a chart. Distance-corrected VA at 40 cm is the VA at 40 cm measured under a corrected condition in which best-corrected VA at 5 m was obtained. VA was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

VA was tested monocularly at all visits and binocularly at Day 30-60, Day 120-180, and Day 330-420 using a chart at the distance of best near vision (cm) as decided by the participant. VA was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

VA was tested monocularly at all visits and binocularly at Day 30-60, Day 120-180, and Day 330-420 unaided using a chart. The participant indicated the distance (cm) at which best near vision was attained.

VA was tested monocularly at Day 1-2, Day 7-14, Day 30-60, Day 120-180, and Day 330-420 and binocularly at Day 30-60, Day 120-180, and Day 330-420 with the participant's best spectacle correction using a chart. The participant indicated the distance (cm) at which best near vision was attained.

Far contrast sensitivity (ie, the ability to detect slight changes in luminance before they become indistinguishable) was assessed binocularly with the participant's best spectacle correction at a distance of 3 m using the Vector Vision CSV 1000 illuminated box (one site) and the Vision Contrast Test System (other site). Contrast sensitivity was assessed at spatial frequencies of 1.5, 3, 6, 12, and 18 cycles per degree (cpd). For CSV 1000, contrast sensitivity was not measured at spatial frequency 1.5 cpd because there was no option for this frequency. Raw scores were transformed to logMar (logarithm of the minimum angle of resolution) units. A higher numeric value represents better contrast sensitivity.

Near contrast sensitivity (ie, the ability to detect slight changes in luminance before they become indistinguishable) was assessed binocularly with the participant's best spectacle correction at a distance of 46 cm using the Functional Acuity Contrast Test (FACT). Contrast sensitivity was assessed at spatial frequencies of 1.5, 3, 6, 12, and 18 cycles per degree (cpd). Raw scores were transformed to logMar units. A higher numeric value represents better contrast sensitivity.

Defocus VA (an indicator of the expected range of vision with a presbyopia-correcting IOL) was tested binocularly with the participant's best spectacle correction at a distance of 5 m using a chart. Lenses of different spherical powers were placed in front of the eyes to produce varying levels of defocus. The VA at each spherical power was measured in decimal, with 1.0 decimal corresponding to 20/20 Snellen. A higher numeric value represents better visual acuity.

Stereopsis (the ability to perceive depth and 3-dimensional structure) was assessed binocularly under well-lit conditions at best distance using the Stereo Optical Company, Inc., Original Stereo Fly Test and polarized viewers. The participant was shown a series of symbols, with a positive response defined as correct identification of the 3-dimensional symbol. Responses were recorded for 3 symbols: Fly (easiest to perceive), animal, and circle (hardest to perceive).

The participant completed a questionnaire, indicating (yes/no) if he/she experienced visual difficulty in every-day activities while not wearing spectacles. A positive response was defined as, "Yes=visual difficulty."