NCT01088282

Brief Summary

Surgical correction of presbyopia is possible via the implantation of multifocal intraocular lenses after removal of the crystalline lens. The cost of these implants is approximately 6 times higher than the conventional monofocal implants routinely used in all crystalline surgery for correction of the resulting ametropia. Spectacles for correcting presbyopia, which are necessary after the insertion of monofocal implants, may also have a significant cost. The proposed trial will involve two randomized groups of patients in need of crystalline/cataract surgery, with monofocal or multifocal lens implants (the same type of lens in both eyes) leaving them emmetropic for distant vision. The objective is to corroborate with blind-evaluation the effectiveness of multifocal lens implants in obviating the need for glasses to correct presbyopia, to evaluate the benefits of this type of implant, both in global economic terms (adding the cost of the implants to that of corrective glasses where necessary) and in terms of the improved quality of life of the patients, and to confirm the absence of adverse effects. Findings will be subjected to a statistical quantification.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Mar 2010

Geographic Reach
1 country

2 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2010

Completed
15 days until next milestone

First Submitted

Initial submission to the registry

March 16, 2010

Completed
1 day until next milestone

First Posted

Study publicly available on registry

March 17, 2010

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2010

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2011

Completed
Last Updated

March 17, 2010

Status Verified

February 1, 2010

Enrollment Period

9 months

First QC Date

March 16, 2010

Last Update Submit

March 16, 2010

Conditions

Keywords

Diffractive multifocal IOL

Outcome Measures

Primary Outcomes (1)

  • Visual function quality (VF-14)

    At 1 and 3 months post-intervention

Secondary Outcomes (2)

  • Visual acuity with and without correction

    at 1 and 3 months post-intervention

  • Determine Expense in glasses

    at 3 months post-intervention

Study Arms (2)

Implantation of difractive multifocal IOL

ACTIVE COMPARATOR
Procedure: Cataract surgery

Implantation of monofocal IOL

SHAM COMPARATOR
Procedure: Cataract surgery

Interventions

Implantation of multifocal or monofocal IOL

Also known as: SN6AD1 (Alcon labs, Fotworth, Texas) in active comparator, SN60WF (Alcon labs, Fotworth, Texas) in sham comparator
Implantation of difractive multifocal IOLImplantation of monofocal IOL

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients of both sexes aged 50 and over, with fully-established presbyopia, requiring phacoemulsification + IOL as the surgical technique for the removal of their cataracts.
  • Their capsular bags should be stable, with keratometric astigmatism equal to or lower than 1 diopter.
  • Biometric calculations should indicate an IOL for emmetropy within the common dioptric range for both lenses, i.e. between +6 y +34.

You may not qualify if:

  • Previous corneal refractive surgery
  • Maculopathy, amblyopia or other eye conditions that limit visual power
  • Occupations requiring special driving licenses
  • Keratometric astigmatism higher than 1 diopter
  • Any intraoperative posterior capsular rupture or extracapsular reconversion.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Hospital Clinic. Casa Maternitat

Barcelona, Barcelona, 08028, Spain

Location

Hospital Clinic. Casa maternitat

Barcelona, Barcelona, 08028, Spain

Location

MeSH Terms

Conditions

Presbyopia

Interventions

Cataract Extraction

Condition Hierarchy (Ancestors)

Refractive ErrorsEye Diseases

Intervention Hierarchy (Ancestors)

Refractive Surgical ProceduresOphthalmologic Surgical ProceduresSurgical Procedures, Operative

Study Officials

  • Josep Torras, MD

    Hospital Clinic of Barcelona

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Josep Torras, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

March 16, 2010

First Posted

March 17, 2010

Study Start

March 1, 2010

Primary Completion

December 1, 2010

Study Completion

March 1, 2011

Last Updated

March 17, 2010

Record last verified: 2010-02

Locations