Long-term With a Trifocal Intraocular Lens
Study Details
Study Description
Brief Summary
The main aims of this study were to evaluate the patient reported outcomes (PROs), safety and efficacy, after 6-year (66 - 78 months) from the binocular implantation of the AT LISA tri 839MP. A secondary aim was to evaluate new metrics such as contrast sensitivity defocus curves and light distortion analysis.
Condition or Disease | Intervention/Treatment | Phase |
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Detailed Description
Retrospective cross-sectional study with two stages:
• Phone call interview:
First stage included patient reported outcomes of visual function, spectacle independence and satisfaction through questionnaires conducted by a phone call in all the patients implanted in our center with AT LISA 839MP from March 2014 to June 2015 (n=92) which accomplished inclusion / exclusion criteria and were able to be contacted by phone (n=62).
The incidence of Nd-YAG capsulotomy was retrospectively evaluated through the revision of the medical history, in patients for which capsulotomy was conducted in our center, or a question, for those treated in another center.
• Study visit:
Second stage included the consecutive invitation of these phone interviewed patients to a visit in our center for a long-term visual performance assessment up to accomplish the required sample size (n=37).
Corrected and uncorrected monocular visual acuities were the primary end-points for testing non-inferiority hypothesis in comparison to 12-month follow-up mean results reported in the literature. Secondary variables of assessment were contrast sensitivity defocus curve and light distortion analysis.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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AT LISA tri 839MP Patients implanted with AT LISA tri 839MP |
Device: AT LISA tri 839MP
Non interventional study
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Outcome Measures
Primary Outcome Measures
- Monocular visual acuity [6 years]
Visual acuity measured with and without best corrected distance subjective refraction in logMAR scale, lower value meaning better results.
Secondary Outcome Measures
- Contrast sensitivity defocus curve in logCS [6 years]
Contrast Sensitivity measured at different vergence distances with Multifocal Lens Analyzer (www.defocuscurve.com) in logCS scale, higher value meaning better results.
- Light distortion analysis in percentage [6 years]
Light Distortion Analyzer (CEORLab, University of Minho, Braga, Portugal) in Percentage, higher percentage meaning poorer results.
- Visual Function Questionnaire (VF-14) [6 years]
Patient reported outcomes evaluation of difficulties related to visual function in daily life activities (Scale ranging from 0 - 100, higher values meaning better results)
- Patient-Reported Spectacle Independence Questionnaire (PRSIQ) [6 years]
Patient reported outcomes of spectacle independence showing descriptive results of percentage of patients using need of glasses, often wear and comfortably without wear
- Satisfaction, Photic Phenomena and Operated again [6 years]
Independent questions not associated with a validated questionnaire showing descriptive results of percentage of patients satisfied with their vision, the bothersome to photic phenomena and the likely to be operated again.
Eligibility Criteria
Criteria
Inclusion Criteria:
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Phone call interview:
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Patients of either sex, 45 years of age or older at the time of surgery and less than 80 years of age at the time of the phone call.
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Patients implanted bilaterally with the AT LISA 839MP MIOL in the capsular bag.
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No surgical complications reported in the clinical history that could affect postoperative visual acuity: damage to the capsular bag, intraocular hemorrhage, etc.
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Operated between 66 months from the first implanted eye and up to 78 months from the surgery of the second eye
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Patient able to hear, understand and give express consent orally.
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Study visit:
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To have participated in the first stage of the study corresponding to the phone call interview.
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Irregular astigmatism in either eye measured with corneal tomography (total high-order corneal aberrations at 4 mm < 0.5 μm).
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Patient able to read, understand and provide a written informed consent form.
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Sufficient availability, willingness, skills, and cognitive awareness to comply with follow-up/study procedures and study visits.
Exclusion Criteria:
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Phone call interview:
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Any eye disease documented in the patient's clinical history that may potentially cause a loss of visual acuity or diplopia: Active or recurrent pathology of the anterior segment (chronic uveitis, iritis, iridocyclitis, rubeosis iridis, uncontrolled glaucoma, etc.), retinal or optic nerve pathologies such as diabetic retinopathy, macular degeneration, etc.
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Eye surgery (including laser refractive surgery) performed before or after the operation with the intraocular lens.
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Study Visit:
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PCO ≥ 2 according to surgeon criteria that produces a loss of CDVA ≥ 0.2 logMAR
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Any eye disorder that can potentially cause a loss of visual acuity or diplopia: Active or recurrent pathology of the anterior segment (chronic uveitis, iritis, iridocyclitis, rubeosis iridis, uncontrolled glaucoma, etc.), retinal or optic nerve pathologies such as diabetic retinopathy, macular degeneration, etc.
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Eye surgery (including laser refractive surgery) performed before or after the operation with the intraocular lens.
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Use of systemic or ocular medications that may affect vision in the last 6 months.
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Subjects who participate in any clinical trial or research with drugs or medical devices within 30 days prior to entry into this research and/or during the period of participation in this research.
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Qvision, Vithas Virgen del Mar Hospital | Almería | Spain | 04120 |
Sponsors and Collaborators
- Qvision, Ophthalmology Department
- Carl Zeiss Meditec AG
Investigators
None specified.Study Documents (Full-Text)
More Information
Publications
None provided.- QVI-20-02