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

• Intraocular lens (Device): Implantation as part of cataract surgery

Primary outcomes

• Horizontal position stability [1 week to 4-6 months post-operatively]: Evaluation of the horizontal position stability of the CT LUCIA 611P IOL. The horizontal position at M1 and M4-6 will be compared to the horizontal IOL position at baseline (W1) and to the position stability of the reference IOL, CT ASPHINA 409MP.

Sex: All, ages: 50 Years to 90 Years

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