Comparing two types of intraocular lenses using the Yamane technique
Evaluation of Two Different Intraocular Lens Models After Lens Implantation Using the Yamane Technique
This study tests how well two different types of lenses work after cataract surgery using a special technique to see which one helps people see better and have fewer problems.
Quick facts
| Study type | Observational |
|---|---|
| Enrollment | 50 (estimated) |
| Ages | 21 Years to 110 Years |
| Sex | All |
| Sponsor | Johannes Kepler University of Linz Academic / other |
| Locations | 2 sites (Linz, Upper Austria and 1 other locations) |
| Trial ID | NCT05912829 on ClinicalTrials.gov |
What this trial studies
This study evaluates the postoperative outcomes of two different intraocular lenses (IOLs) implanted using the Yamane technique during cataract surgery. The Yamane technique involves a double-needle approach to securely fix the haptics of the IOL intrasclerally, particularly in cases where the capsular bag is unstable or ruptured. The study will assess the tilt of the Kowa PU6AS lens, as well as measure corrected and uncorrected visual acuity and anterior chamber depth over time. Data will be collected at monthly and six-month intervals to ensure quality assurance and evaluate the effectiveness of the technique.
Who should consider this trial
Good fit: Ideal candidates for this study are adults aged 21 and older who are undergoing lens implantation with the Kowa PU6AS or Johnson & Johnson ZA9003 lenses using the Yamane technique.
Not a fit: Patients with a best corrected visual acuity greater than 0.1 (Snellen) or those who are pregnant will not benefit from this study.
Why it matters
Potential benefit: If successful, this study could improve the outcomes of cataract surgeries in patients with complicated cases, leading to better visual acuity and reduced complications.
How similar studies have performed: While the Yamane technique is established, this specific comparison of IOLs using this method is novel and has not been extensively tested in prior studies.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * Minimum age: 21 Years * planned or performed lens implantation using the Kowa PU6AS or the Johnson \& Johnson ZA9003 using the Yamane technique * signed patient consent form Exclusion Criteria: * best corrected visual acuity \>0.1 (Snellen) * pregnancy
Where this trial is running
Linz, Upper Austria and 1 other locations
- Department for Ophthalmology and Optometry, Kepler University Hospital GmbH, Johannes Kepler University Linz — Linz, Upper Austria, Austria (Recruiting)
- Department for Ophthalmology and Optometry — Linz, Upper Austria, Austria (Recruiting)
Study contacts
- Study coordinator: Christina Silber, MSc
- Email: christina.silber@kepleruniklinikum.at
- Phone: +43 5 7680 83
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.