Cataract Clinical Trial
Official title:
Comparison of Visual Performance of 2 Diffractive Trifocal Intraocular Lenses: a Randomised Controlled Trial
NCT number | NCT03748381 |
Other study ID # | Trifocal |
Secondary ID | |
Status | Recruiting |
Phase | N/A |
First received | |
Last updated | |
Start date | April 1, 2018 |
Est. completion date | April 1, 2020 |
Compare two commercially available bilateral implanted diffractive trifocal lenses (Zeiss AT Lisa tri vs. Rayner trifocal) after cataract surgery concerning visual function and spectacle independence.
Status | Recruiting |
Enrollment | 44 |
Est. completion date | April 1, 2020 |
Est. primary completion date | April 1, 2020 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 21 Years to 105 Years |
Eligibility |
Inclusion Criteria: - Age-related cataract - Scheduled for bilateral cataract extraction - Motivated to be less spectacle dependant - Age 21 and older - Corneal astigmatism = 1.5 D (Keratometry, IOL Master 700) - written informed consent prior to recruitment Exclusion Criteria: - Pregnancy (pregnancy test will be taken pre-operatively in women of reproductive age) - Retinitis pigmentosa - Chronic uveitis - Amblyopia - Pupil decentration > 1mm center shift - preceded retinal surgery - preceded Laser-in-situ-Keratomileusis (LASIK) - Any ophthalmic abnormality that could compromise visual function or the measurements |
Country | Name | City | State |
---|---|---|---|
Austria | Vienna Institute for Research in Ocular Surgery (VIROS) | Vienna |
Lead Sponsor | Collaborator |
---|---|
Prim. Prof. Dr. Oliver Findl, MBA |
Austria,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Uncorrected Near Visual Acuity | Uncorrected Near Visual Acuity will be assessed with ETDRS charts | 12 months | |
Secondary | Uncorrected and Best corrected Far and Intermediate Visual Acuity, | Uncorrected and Best corrected Far and Intermediate Visual Acuity will be assessed with ETDRS charts | 12 months | |
Secondary | Halo measurements | Halos will be assessed using the Halometer App on a tablet | 12 months | |
Secondary | Reading speed | Reading speed will be assessed using the Salzburg Reading Desk | 12 months | |
Secondary | Defocus curve | A defocus curve will be done by adding glasses starting from -4.0D to +2.0D to the best corrected far correction | 12 months | |
Secondary | Contrast sensitivity | Contrast sensitivity will be assessed using the Optec Vision tester | 12 months |
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