Clinical trials: Lens Implantation, Intraocular
the Accuracy of Intraocular Lens Calculation Formula
Study on the Accuracy of Intraocular Lens Calculation Formula
In this study, we will retrospectively collect patients who have performed phacoemulsification combined with intraocular lens implantation in our hospital, collect various preoperative biometric data and postoperative refractive…
- Trial name
- NCT05672693
- Testing
- Several Calculation Formulas of Intraocular Lens
- Where
- China
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Cataract, Astigmatism
Comparisons of the Astigmatic Power of Toric Intraocular Lens Using Three Toric Calculators: AcrySof, TECNIS, and iTrace Toric Calculator
Purpose of this study is to compare the astigmatic power of the toric IOL obtained from the AcrySof toric calculator, TECNIS toric calculator, and iTrace toric calculator in a group of patients with preoperative with-the-rule…
- Trial name
- NCT01978106
- Where
- South Korea
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Cataract, Lens Opacities
PMCF Study on Comparison of EDOF Lenses (Switzerland)
Single center, prospective, randomised, controlled, double-blind post-market clinical follow-up (PMCF) study to compare the clinical outcomes of a premium monofocal intraocular lens (PhysIOL ISOPURE 1.2.3.) with clinical data…
- Trial name
- PHY2130 (NCT05235139)
- Testing
- IOL implantation experimental (ISOPURE 1.2.3.), IOL implantation active comparator (Acrysof Vivity)
- Where
- Switzerland
- Volunteers
- 73 people, healthy volunteers welcome
- Sponsor
- Beaver-Visitec International, Inc.
Marfan's Syndrome With Ocular Manifestations, Pseudoexfoliation Syndrome
The Oscillation of Crystalline and Intraocular Lenses
The crystalline lens of the human eye helps to sharpen vision. There can be issues with the support/stability of the lens. This could be seen with the naked eye of an external observer or with the use of a slit lamp.
- Conditions
- Marfan's Syndrome With Ocular Manifestations, Pseudoexfoliation Syndrome, Cataract, Phakodonesis
- Trial name
- NCT04274634
- Where
- 2 sites in United Kingdom
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Anglia Ruskin University
Cataract, Signs and Symptoms
Spherical Aberration and Contrast Sensitivity in IOLs
Purpose: To determine whether implantation of an intraocular lens (IOL) with a modified anterior aspheric surface results in reduced spherical aberration and improved contrast sensitivity after cataract surgery.
- Conditions
- Cataract, Signs and Symptoms, Pseudophakia, Lens Diseases
- Trial name
- IOLs (NCT00576485)
- Testing
- Cataract surgery and intraocular lens implantation
- Where
- Brazil
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Federal University of Minas Gerais
Cataract
Clinical Investigation of Omega Refractive Capsule, Model VI
The objective of this study is to evaluate the safety and effectiveness of the investigational Omega Refractive Capsule (model VI)
- Trial name
- ORCVI (NCT04574115)
- Testing
- Omega Refractive Capsule with an FDA approved Intraocular Lens, FDA approved Intraocular Lens
- Where
- Costa Rica
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Omega Ophthalmics
Presbyopia, Pseudophakia
Identification of Minimum Focal Points in Vision Curve Formation
The primary objective of this study is to identify how many focal points and at which distances are necessary for reliable visual curve formation and area of the curve (AoC) calculation using mathematical models and comparing the…
- Conditions
- Presbyopia, Pseudophakia, Cataract, Refractive Errors
- Trial name
- NCT06260852
- Testing
- Diagnostic Test: Visual Acuity Assessment
- Where
- Greece
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Cataract
Visual and Refractive Outcomes of a New Diffractive Trifocal Toric Intraocular Lens
The purpose of this study is to investigate the visual performance and refractive predictability with the diffractive toric Finevision POD FT IOL.
- Trial name
- RibeiroPODFT (NCT04940793)
- Testing
- POD FT
- Where
- Portugal
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Beaver-Visitec International, Inc.
Cataract, Presbyopia
Comparison of Two Different Optical Biometric Systems
Primary objective of this study is to evaluate and compare the measurements of two different optical biometrics systems in patients who will undergo cataract surgery or presbyopia surgery using intraocular lenses (IOL-PC).
- Conditions
- Cataract, Presbyopia, Ocular Biometry, Intraocular Lens
- Trial name
- NCT05411341
- Testing
- Argos (Alcon Laboratories, Inc.), IOLMaster 500 (Carl Zeiss Meditec AG)
- Where
- Greece
- Volunteers
- 133 people, healthy volunteers welcome
- Sponsor
- Democritus University of Thrace
Cataract
Visual Outcomes of Subjects Bilaterally Implanted With ReSTOR Aspheric +4 vs. Tecnis or Acri.LISA
This is a study to compare visual outcomes of subjects bilaterally implanted w/ReSTOR to subjects bilaterally implanted with the Tecnis Multifocal Intraocular Lens (IOL) or Acri.LISA IOL
- Trial name
- NCT00721253
- Testing
- ReSTOR, Tecnis, Acri.LISA
- Where
- United States
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Alcon Research
Cataract
Clinical Results of Asqelio™ EDOF Toric Soft Hydrophobic Intraocular Lens After Cataract Surgery
The goal of this observational study is to assess the clinical outcomes of binocular implantation of Asqelio EDOF Toric IOLs in healthy cataract patients.
- Trial name
- NCT06229756
- Where
- Spain
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- AST Products, Inc.
Cataract, Astigmatism
Toric Intraocular Lenses for Cataract Patients in the NHS
To assess visual performance, refractive outcome, and patient satisfaction with the use of "off the shelf" toric lenses, with a set cylindrical correction of 2.00 or 4.00 diopters, and combined limbal relaxing incisions and/or…
- Conditions
- Cataract, Astigmatism, Cornea
- Trial name
- NCT04122651
- Testing
- 'Off the shelf' toric lens, Tailored Toric lens
- Volunteers
- 168 people, healthy volunteers welcome
- Sponsor
- Guy's and St Thomas' NHS Foundation Trust
Refractive Error Correction
Clinical Outcomes of the Use of a Femtosecond Laser on an Implanted Intraocular Lens
This is a prospective non-randomized patient controlled single center study which is designed to evaluate the clinical outcomes of the treatment of an implanted intraocular lens using a low-energy femtosecond laser for refractive…
- Trial name
- NCT07473557
- Testing
- Device
- Where
- Panama
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Perfect Lens, LLC
Cataract After, Astigmatism
Influence of Residual Astigmatism on Visual Acuity in Patients Undergoing Cataract Surgery With Trifocal Intraocular Lens Implantation
MAIN OBJECTIVE: To assess the influence of residual astigmatism on visual acuity in the different lens foci in patients operated on for cataracts with a trifocal intraocular lens implant.
- Conditions
- Cataract After, Astigmatism, IOL, Visual Acuity
- Trial name
- NCT04387721
- Testing
- Kind of trifocal IOL
- Where
- Spain
- Volunteers
- 48 people, healthy volunteers welcome
- Sponsor
- Enrique Ordiñaga-Monreal, OD, MSc
Corneal Astigmatism
Toric IOL vs Non-toric IOL With LRI for Corneal Astigmatism
The purpose of the study is to compare the astigmatism reducing effect of a toric intraocular lens (IOL) (model MX60T - Bausch \& Lomb) with that of limbal relaxing incisional surgery combined with a non toric IOL (model MX60 …
- Trial name
- NCT03633851
- Testing
- Toric intraocular MX60T lens, Standard MX60 plus corneal incisions
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Ashford and St. Peter's Hospitals NHS Trust
Cataract
Efficacy of Dextenza Insert in Upper vs Lower Punctum Following Cataract Surgery With PCIOL.
To assess the safety and effectiveness of treatment with an intracanalicular dexamethasone (0.4mg) insert in the operating room following cataract surgery/intraocular lens implant (IOL) with or without iStent/Hydrus/Goniotomy…
- Trial name
- DEXTENZA (NCT05372315)
- Testing
- Dextenza 0.4Mg Ophthalmic Insert
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Iworks Laser and Vision Center
Pseudophakia
An Open-Label Evaluation of Degree of Accommodation in Pseudophakic Patients Bilaterally Implanted With Monofocal Intraocular Lenses
This study will determine the ability of three different intraocular lenses to accommodate in patients who have previously undergone bilateral intraocular lens implantation.
- Trial name
- NCT01004549
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Innovative Medical