Identifying focal points for better vision after cataract surgery
Identification of Minimum Focal Points in Vision Curve Formation After Pseudophakic Presbyopia Surgery
This study is trying to find out how many different focus points and distances are needed for better vision after cataract surgery in people who have had the procedure.
Quick facts
| Study type | Observational |
|---|---|
| Enrollment | 80 (estimated) |
| Ages | 40 Years to 80 Years |
| Sex | All |
| Sponsor | Democritus University of Thrace Academic / other |
| Locations | 1 site (Alexandroupolis, Evros) |
| Trial ID | NCT06260852 on ClinicalTrials.gov |
What this trial studies
This observational study aims to determine the necessary number of focal points and their distances for effective visual curve formation in patients who have undergone uncomplicated pseudophakic presbyopia surgery. It will involve 80 participants who will have their postoperative visual curves evaluated at nine different distances. The data collected will be analyzed using mathematical models, specifically polynomial and spline interpolation methods, to create a unique polynomial that fits all measured data points.
Who should consider this trial
Good fit: Ideal candidates for this study are individuals over 40 years old who have had bilateral premium cataract surgery and have a best corrected visual acuity of less than 0.2 logMAR.
Not a fit: Patients with macular or corneal diseases, those taking medications to reduce intraocular pressure, or those with significant postoperative complications may not benefit from this study.
Why it matters
Potential benefit: If successful, this study could enhance visual outcomes for patients undergoing cataract surgery by optimizing focal point configurations.
How similar studies have performed: While this approach is innovative in its mathematical modeling of visual curves, similar studies have shown promise in improving visual outcomes post-surgery.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: * age over 40, * previous bilateral premium cataract surgery, * best corrected visual acuity (BCVA) \< 0,2 logMAR Exclusion Criteria: * taking topical medication to reduce intraocular pressure (IOP), * macular diseases, * corneal diseases, * inability to understand the procedure, * postoperative astigmatism \>1.50 diopters, * postoperative clouding of the posterior capsule
Where this trial is running
Alexandroupolis, Evros
- Department of Ophthalmology, University Hospital of Alexandroupolis — Alexandroupolis, Evros, Greece (Recruiting)
Study contacts
- Study coordinator: Georgios Labiris, MD, PhD
- Email: labiris@usa.net
- Phone: 00302551030405
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.