Visual Performance of New Apodized Diffractive Multifocal IOL With Addition of Plus Three

University of Sao Paulo

Status: Completed

Conditions: To Study the Influence of an Multifocal Intraocular Lens With Different Addition on Intermediate Visual Acuity

Treatments: Other: Implantation of a multifocal Intraocular lens

Study type: Observational

Funder types: Other

Identifiers

NCT01027533

MRS.1703

Details and patient eligibility

About

The purpose of the study is to determine whether implantation of a multifocal IOL with a modified addition at lens plane(Restor +3) results in better intermediate visual acuity with similar performance at distance and near compared to other multifocal IOL with similar design but with higher addition at lens plane. Patient's contrast sensitivity of vision and best reading distance following Restor +3 implantation were also assessed.

Study hypothesis: the implantation of an intraocular lens (IOL) with a modified addition at lens plane (restor +3, Alcon Laboratories,Inc) results in better intermediate visual acuity with similar distance and near visual acuity after cataract surgery.

Full description

Patients with bilateral visually significant cataract with corneal astigmatism lower than 1.0D (diopters) will be eligible for inclusion in the study. Exclusion criteria will be any ocular diseases, such as corneal opacities or irregularity, dry eye, amblyopia, anisometropia, glaucoma, retinal abnormalities, surgical complications, IOL tilt, IOL decentration greater than 0.4 mm (estimated by retroillumination), or incomplete follow-up.

Patients will be examined before surgery and at 1, 7, 30, 90 days and 3and 6 months after surgery.

Enrollment: 32 estimated patients

Sex: All

Ages: 40+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• •Patients with bilateral visually significant cataract with corneal astigmatism lower than 1.0D (diopters)

Exclusion criteria

• Ocular diseases, such as corneal opacities or irregularity, dry eye amblyopia, anisometropia, glaucoma, retinal abnormalities
• Surgical complications
• Intraocular lens (IOL) tilt, IOL decentration greater than 0.4 mm (estimated by retroillumination)
• Incomplete follow-up.

Trial design

32 participants in 2 patient groups

Restor +3

Description:

patients will be implanted bilaterally with Restor + 3

Treatment:

Other: Implantation of a multifocal Intraocular lens

restor +4

Description:

Patients will be implanted bilaterally with Restor +4

Treatment:

Other: Implantation of a multifocal Intraocular lens