Spherical Aberration on the Optical of Two Different Aspherical Intraocular Lenses

Effect of Spherical Aberration on the Optical Quality After Implantation of Two Different Aspherical Intraocular Lenses

Purpose: To compare the effect of spherical aberration on optical quality in eyes with two different aspherical intraocular lenses Methods: In this prospective, randomized clinical trial 120 eyes of 60 patients underwent phacoemulsification. In patient's eyes an aberration-free aspherical IOL (Aspira-aA; Human Optics) or an aberration-correcting aspherical IOL (Tecnis ZCB00; Abott Medical Optics) were randomly implanted. Three months after surgery visual acuity, contrast sensitivity, wavefront measurements with iTrace as well as tilt and decentration measurements with Visante anterior segment OCT were performed.

Inclusion Criteria:

• Bilateral age-related cataract
• Potential postoperative visual acuity of 1.0 Snellen
• No relevant ocular pathology other than cataract
• Written informed consent to surgery and participation in the study

Exclusion Criteria:

• Amblyopia, diabetic retinopathy, uveitis or other relevant ophthalmic diseases
• Optical media disturbances due to: corneal and vitreal opacity, PEX
• Preceding ocular trauma or ocular surgery within 6 months
• Inability to cooperate
• Pregnancy (a pregnancy test will be performed preoperatively in women of reproductive age)