Selection of Aspheric Diffractive Multifocal Intraocular Lens (IOLS) Based on Corneal Wavefront
1 other identifier
interventional
8
1 country
1
Brief Summary
Given the availability of aspheric diffractive IOLs with varying negative spherical aberration it may be feasible, by selecting the best fit IOL, to minimize aberrations and thereby maximize visual performance.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_4
Started Oct 2009
Typical duration for phase_4
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
October 1, 2009
CompletedFirst Submitted
Initial submission to the registry
October 19, 2009
CompletedFirst Posted
Study publicly available on registry
October 21, 2009
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2012
CompletedFebruary 28, 2014
February 1, 2014
2.3 years
October 19, 2009
February 26, 2014
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Frequency of spectacle wear
3 months postoperatively
Secondary Outcomes (1)
Frequency and degree of visual symptoms
3 months postoperatively
Interventions
Aspheric, diffractive multifocal intraocular lenses
Eligibility Criteria
You may qualify if:
- years of age or older
- Scheduled to undergo bilateral cataract or refractive lens surgery
- Visual potential of 20/30 or better in each eye after lens removal and IOL implantation
- Naturally dilated pupil size (in dim light) \> 3.5 mm (with no dilation medications) for both eyes
- Preoperative regular corneal astigmatism of 2.5 D or less
- Clear intraocular media other than cataract
- Availability, willingness, and sufficient cognitive awareness to comply with examination procedures
You may not qualify if:
- Ocular disease other than cataract which could potentially limit uncorrected visual acuity or visual performance.
- Astigmatism not correctable by limbal relaxing incisions (greater than 2.5 D)
- Use of systemic or ocular medications that may affect visual outcomes
- Acute or chronic disease or illness that would increase risk or confound study results (e.g. diabetes mellitus, immunocompromised, etc.)
- Uncontrolled systemic or ocular disease
- History of ocular trauma or prior ocular surgery
- Amblyopia or strabismus
- Known pathology that may affect visual acuity; particularly retinal changes that affect vision (macular degeneration, cystoid macular edema, proliferative diabetic retinopathy, etc.)
- Diagnosed degenerative visual disorders (e.g. macular degeneration, or other retinal disorders) that are predicted to cause future acuity losses to a level of worse than 20/30
- Subjects who may be expected to require retinal laser treatment or other surgical intervention
- Capsule or zonular abnormalities that may affect postoperative centration or tilt of the lens (e.g. pseudoexfoliation syndrome)
- Pupil abnormalities (non-reactive, tonic pupils or abnormally shaped pupils)
- Contact lens usage within 6 months for PMMA lenses, 1 month for gas permeable lenses or 1 week for extended-wear and daily-wear soft lenses
- Requiring an intraocular lens power \<15.0 or \>26.0 diopters
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Drs. Fine, Hoffman and Packer, LLC
Eugene, Oregon, 97401, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Sponsor-Investigator
Study Record Dates
First Submitted
October 19, 2009
First Posted
October 21, 2009
Study Start
October 1, 2009
Primary Completion
February 1, 2012
Study Completion
February 1, 2012
Last Updated
February 28, 2014
Record last verified: 2014-02