Visual Function and Patient Satisfaction After Bilateral Implantation of AcrySof Natural ReSTOR (Model SN60D3) or AcrySof Natural Monofocal (Model SN60AT)
1 other identifier
interventional
35
1 country
1
Brief Summary
The purpose of the study is:
- to compare visual parameters (Subjective refraction and Visual Acuity (VA)) and safety (tilt, decentration and posterior chamber opacification (PCO)) in a prospective series of 40 patients after bilateral implantation of AcrySof Natural ReSTOR (Model SN60D3) or AcrySof Natural Monofocal (Model SN60AT)
- to assess patient satisfaction before and after implant
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started May 2007
Typical duration for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 2007
CompletedFirst Submitted
Initial submission to the registry
September 24, 2008
CompletedFirst Posted
Study publicly available on registry
September 25, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2009
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2009
CompletedResults Posted
Study results publicly available
January 26, 2011
CompletedJanuary 26, 2011
January 1, 2011
2.3 years
September 24, 2008
October 12, 2010
January 5, 2011
Conditions
Outcome Measures
Primary Outcomes (6)
Near Best Corrected Visual Acuity (BCVA) - Binocular
Percentage of patients with Near Visual Acuity (VA) ≥ 6.5/10 (≤ 0.18 LogMAR) at visit 8 (six months after implantation of the 2nd eye). This test was conducted binocularly and with best correction. The effect of treatment was tested by Chi-square test. VA is acuteness or clearness of vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain. VA is measured in logMAR which is the "logarithm of the minimum angle of resolution". A lower logMAR value indicates better VA.
6 months after second eye implantation
Near Uncorrected Visual Acuity (UCVA) Binocular
Percentage of patients with Near Visual Acuity (VA) ≥ 6.5/10 (≤ 0.18 LogMAR) at visit 8 (six months after implantation of the 2nd eye). This test was conducted binocularly and with no correction. The effect of treatment was tested by Chi-square test. VA is acuteness or clearness of vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain. VA is measured in logMAR which is the "logarithm of the minimum angle of resolution". A lower logMAR value indicates better VA.
6 months after second eye implantation
Near Best Corrected Visual Acuity Left Eye (BCVA LE)
Percentage of patients with Near Visual Acuity (VA) ≥ 6.5/10 (≤ 0.18 LogMAR) at visit 8 (six months after implantation of the 2nd eye). This test was conducted monocularly (left eye only) and with best correction. The effect of treatment was tested by Chi-square test. VA is acuteness or clearness of vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain. VA is measured in logMAR which is the "logarithm of the minimum angle of resolution". A lower logMAR value indicates better VA.
6 months after second eye implantation
Near Uncorrected Visual Acuity Left Eye (UCVA LE)
Percentage of patients with Near Visual Acuity (VA) ≥ 6.5/10 (≤ 0.18 LogMAR) at visit 8 (six months after implantation of the 2nd eye). This test was conducted monocularly (left eye only) and with no correction. The effect of treatment was tested by Chi-square test. VA is acuteness or clearness of vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain. VA is measured in logMAR which is the "logarithm of the minimum angle of resolution". A lower logMAR value indicates better VA.
6 months after second eye implantation
Near Best Corrected Visual Acuity Right Eye (BCVA RE)
Percentage of patients with Near Visual Acuity (VA) ≥ 6.5/10 (≤ 0.18 LogMAR) at visit 8 (six months after implantation of the 2nd eye). This test was conducted monocularly (right eye only) and with best correction. The effect of treatment was tested by Chi-square test. VA is acuteness or clearness of vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain. VA is measured in logMAR which is the "logarithm of the minimum angle of resolution". A lower logMAR value indicates better VA.
6 months after second eye implantation
Near Uncorrected Visual Acuity Right Eye (UCVA RE)
Percentage of patients with Near Visual Acuity (VA) ≥ 6.5/10 (≤ 0.18 LogMAR) at visit 8 (six months after implantation of the 2nd eye). This test was conducted monocularly (right eye only) and with no correction. The effect of treatment was tested by Chi-square test. VA is acuteness or clearness of vision, which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain. VA is measured in logMAR which is the "logarithm of the minimum angle of resolution". A lower logMAR value indicates better VA.
6 months after second eye implantation
Study Arms (2)
SN60D3
EXPERIMENTALAcrySof Natural ReSTOR Intraocular Lens (IOL) Model SN60D3
SN60AT
ACTIVE COMPARATORAcrySof Natural Monofocal Intraocular Lens (IOL) Model SN60AT
Interventions
Bilateral implantation with the AcrySof Natural ReSTOR Intraocular Lens (IOL) SN60D3 following cataract removal.
Bilateral implantation with the AcrySof Natural Intraocular Lens (IOL) Model SN60AT following cataract removal.
Eligibility Criteria
You may qualify if:
- Written informed consent
- Age: ≥ 50 years ≤ 75 years
- Bilateral age related cataract, to be extracted and followed by the implantation of Posterior Chamber Intraocular Lenses (IOLs)
- Pre-operative and post-operative astigmatism ≤ 1 Diopter (D), as from Keratometry readings
- Potential post operative Visual Acuity (VA) ≥ 20/40
- Second eye surgery to take place no longer than 45 days after the first implant
You may not qualify if:
- Irregular optical aberrations;
- Pupil diameter in scotopic conditions more than 6 mm
- Degenerative visual pathologies (ex: Age-related Macular Degeneration (AMD))
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Alcon Researchlead
Study Sites (1)
Contact Alcon Call Center for Trial Locations
Fort Worth, Texas, 76134, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Limitations and Caveats
Visual acuity data were collected in different units (i.e. c, twentieth, decimal, Jaeger) and were converted to LogMAR after inclusion in the database. This led to inevitable approximations of the data.
Results Point of Contact
- Title
- Marcello Fornoni
- Organization
- Alcon Italia SpA
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
September 24, 2008
First Posted
September 25, 2008
Study Start
May 1, 2007
Primary Completion
September 1, 2009
Study Completion
September 1, 2009
Last Updated
January 26, 2011
Results First Posted
January 26, 2011
Record last verified: 2011-01