A Comparison of Aspheric Toric Intraocular Lens (IOL) Implantation Versus Aspheric Non-Toric Lens Implantation

Inclusion Criteria:

• Have preoperative corneal astigmatism of >=0.75 Diopter (D) as determined by IOL Master keratometry;
• are willing and able to understand and sign an informed consent;
• are more than 21 years of age, of either gender and any race;
• have age related cataracts that require extraction followed by implantation of a posterior chamber intraocular lens (IOL) and used as an on-label procedure;
• are free of disease(s)/condition(s) listed in the "Precautions" section of the AcrySof Toric and monofocal package inserts: choroidal hemorrhage, chronic severe uveitis, concomitant severe eye disease, extremely shallow anterior chamber, medically uncontrolled glaucoma, microphthalmos, non-age-related cataract, proliferative diabetic retinopathy (severe), severe corneal dystrophy, severe optic nerve atrophy, irregular corneal astigmatism and color vision deficiencies;
• have regular, bowtie shaped corneal astigmatism;
• both eyes qualify for a Toric IOL according to the AcrySof IQ Toric Calculator (www.acrysoftoriccalculator.com);
• are able to obtain pupil dilation >=5.0 mm.

Exclusion Criteria:

• previous corneal surgery;
• corneal abnormality that would prevent stable and reliable visual acuity and refractive measures;
• concurrent corneal disease or a disruption of the ocular epithelial surface of the eye;
• planned multiple procedures during cataract/IOL implantation surgery;
• an ocular disease and/or condition that may compromise study results (mild blepharitis does not automatically exclude the subject);
• an ocular trauma, infections or nasolacrimal drainage system malfunction within 3 months of enrollment;
• pregnant or planning pregnancy during course of study; and
• participated in any other investigational study within 30 days prior to enrollment.