To Compare Postoperative Horizontal Position Stability of the CT LUCIA 611P and the CT ASPHINA 409MP

Inclusion Criteria: * Patient informed of the consequences and constraints of the protocol and who has given his/her written informed consent; * Patients of any gender, aged 50 to 90 years; * Assured follow-up examinations; * Healthy eyes besides clinically significant bilateral age-related cataract. * Distance corrected visual acuity ≤ 0.3 logMAR Normal findings in the medical history and physical examination * Calculated IOL power within the available dioptre range; * Biometry measurement/cataract density compatible with the IOLMaster evaluation. Per operative inclusion criteria: * IOL implanted in the capsular bag; * The 2 IOL models (CT LUCIA 611P and CT ASPHINA 409MP) have been implanted in the 2 eyes of one patient; * No intraoperative complications; no damaged capsular bag, no intraocular haemorrhage; no can opener rhexis. Exclusion Criteria: * Allergy to heparin * Monophthalmic patient * Ocular disorders, other than cataract, that could potentially cause future acuity loss to a level of 0.20 logMAR (best-corrected) or worse in either eye; * Any anterior segment pathology that could significantly affect outcomes (e.g. chronic uveitis, iritis, corneal dystrophy, etc.); * Floppy iris syndrome; * Diabetic retinopathy; * Traumatic cataract; * Aniridia; * Microphthalmus; * Amblyopia; * Degenerative visual disorders (e.g. macular degeneration, optic nerve atrophy, or retinal disorders); * Patient expected to require retinal laser treatment before the end of the last follow-up; * Previous intraocular and corneal surgery; * Expected postop. astigmatism greater than 1 D; * Any type of corneal disorder; * Dementia; * Pseudoexfoliation syndrome (PEX); * Glaucoma or IOP higher than 24mmHg under ocular hypertension treatment; * Any other pathology or condition presenting, according to the investigator opinion, a risk for the patient. * Pregnancy and/or lactation