Clinical trials: Ophthalmic Surgery
Retinal Detachment
The Influence of Postoperative Postures on Persistent Sub-foveal Fluid After Scleral Buckle Surgery
The purpose of this study is to evaluate whether postoperative postures influence persistent sub-foveal fluid after scleral buckle surgery
- Trial name
- NCT02294708
- Testing
- postoperative postures
- Where
- China
- Volunteers
- 60 people
- Sponsor
- Peking University Third Hospital
Macular Pucker
Compare ELP in Patients With Elective Phaco-VTX Surgery in One Eye and a Single Lens Phaco Surgery on the Other Eye
The aim of the study is to gain more insight into the potential impact of a vitrectomy (removal of the vitreous) on postoperative effective position of the intraocular lens (IOL).
- Trial name
- ELP (NCT04397068)
- Testing
- phaco-vitrectomy
- Where
- Belgium
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Cataracts
Clinical Investigation of AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric Intraocular Lens (IOL)
The purpose of this study is to evaluate the safety and effectiveness of an investigational multifocal toric intraocular lens (IOL) compared to an FDA-approved multifocal IOL.
- Trial name
- NCT01424189
- Testing
- AcrySof® IQ ReSTOR® +3.0 D Multifocal Toric IOL, AcrySof® ReSTOR® Multifocal IOL Model SA60D3
- Volunteers
- 677 people
- Sponsor
- Alcon Research
Corneal re-Epithelialization
A Study to Assess the Safety, Tolerability and Effect of Nexagon™ Applied to the Eye After PRK Laser Eye Surgery for Nearsightedness
Phase 1 randomized, prospective, double-masked, vehicle-controlled, dose-escalation study to evaluate the safety, tolerability and clinical effect of Nexagon™ in subjects following bilateral PRK for the correction of mild to…
- Trial name
- NCT00654550
- Testing
- Nexagon™ or Nexagon™ vehicle
- Where
- New Zealand
- Volunteers
- 24 people
- Sponsor
- OcuNexus Therapeutics, Inc.
Ophthalmic, Surgery
Comparison of Desflurane Anesthesia Versus TIVA-TCI in Patients Undergoing Ophthalmic Ambulatory Surgery
This is a single-center, randomized, prospective research which aims to investigate the advantages and disadvantages between desflurane balanced anesthesia and TIVA-TCI with propofol in ophthalmic ambulatory surgery, so that to…
- Conditions
- Ophthalmic, Surgery, Anesthesia
- Trial name
- NCT02922660
- Testing
- desflurane, total intravenous anesthesia, inhalation anesthesia
- Where
- China
- Volunteers
- 209 people, healthy volunteers welcome
- Sponsor
- Xiaoliang Gan
Trachomatous Trichiasis, Trachoma
A Trial of Non-absorbable Versus Absorbable Sutures for Trichiasis Surgery
Trachoma is the leading infectious cause of blindness worldwide. Recurrent infection by Chlamydia trachomatis causes in-turning of the eyelids / lashes (trichiasis), leading to corneal damage and blindness.
- Trial name
- NCT00522860
- Testing
- Trichiasis surgery with absorbable sutures, Trichiasis surgery with non-absorbable sutures
- Where
- Ethiopia
- Volunteers
- 1,300 people
- Sponsor
- London School of Hygiene and Tropical Medicine
Refractive Surgery
Topography Guided LASIK by Different Protocols for Treatment of Astigmatism
Background and Rationale: LASIK has been among the highest satisfaction rates of surgical procedures, ranging from 82%-98%. Different ablation profiles have been developed over the years.
- Trial name
- NCT03597906
- Testing
- topography guided ablation, manifest refraction, full topography modified refraction
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Myopia, Astigmatism
Early Changes Between Lenticule Extraction and Small-Incision Lenticule Extraction
The aim is to evaluate the short-term changes in ocular surface measures and tear inflammatory mediators after lenticule extraction (FLEx) and small-incision lenticule extraction (SMILE) procedures.
- Trial name
- NCT02540785
- Testing
- lenticule extraction, small-incision lenticule extraction
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Glaucoma, Glaucoma Following Surgery
Anterior-segment OCT (AS-OCT) and Intraoperative OCT (iOCT) for Trans- Conjunctival Needle Revision (TCNR)
Trabeculectomy is a very important and commonly performed glaucoma operation. It allows fluid from inside the eye to exit into a space called a bleb located on the surface of the eye under the upper eyelid.
- Trial name
- NCT05790408
- Testing
- Digital microscope integrated with intraoperative OCT (Zeiss Artevo 800, Carl Zeiss Meditec AG), Spectralis Anterior-segment OCT (AS-OCT) (Heidelberg Engineering)
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Northwestern University
Deprivation Amblyopia, Congenital Cataract
Augmented Reality Training for Amblyopia After Congenital Cataract Surgery
This study will evaluate whether augmented reality training is effective and safe for treating unilateral amblyopia after congenital cataract surgery in children.
- Trial name
- NCT07693790
- Testing
- Augmented Reality Amblyopia Training, Conventional Patching
- Volunteers
- 88 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Corneal Health, Cataract Surgery
2-Site Safety Study of Besivance Versus Vigamox Prophylactically in Routine Cataract Surgery
The purpose of this study is to demonstrate that Besivance is equal to Vigamox in safety and tolerance when used prophylactically in subjects undergoing routine cataract surgery.
- Trial name
- STB-01 (NCT01455233)
- Testing
- besivance, vigamox
- Where
- 2 sites in United States
- Volunteers
- 60 people
- Sponsor
- Ophthalmology Consultants, Ltd.
Primary Angle-Closure Glaucoma
Predicting the Risk of Partial Ciliary Block After Cataract and Goniosynechialysis Surgery in Primary Angle-Closure Disease
Primary angle-closure disease (PACD) is a major cause of vision loss, often treated with a combined surgery that removes the eye's natural lens (cataract surgery) and physically opens the eye's drainage system…
- Trial name
- PCB-Risk (NCT07549438)
- Volunteers
- 1,150 people
- Sponsor
- Peking University People's Hospital
Posterior Capsule Opacification
Refraction Changes After Using ND: YAG LASER In Treatment of Posterior Capsular Opacification In Pseudo Phakic Eye
The most prevalent long term consequence of cataract surgery in both phacoemulsification and extracapsular cataract excision is posterior capsular opacification (PCO) PCO occurred in 11.8 percent of patients one year after…
- Trial name
- NCT05501535
- Testing
- ND:YAG LASER
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Sohag University
Orbital Fractures, Orbital Floor Fractures
A Trial to Evaluate Two Ectropion Preventive Measures Using the Subciliary Approach in Orbital Fracture Surgery.
The goal of this clinical trial is to investigate whether preventive surgical techniques can reduce the incidence of lower eyelid ectropion after the subciliary approach in adult patients undergoing surgery for orbital fractures.
- Trial name
- PREVENTECT (NCT07775417)
- Testing
- Subciliary Approach, Lateral Canthopexy, Orbicularis Oculi Suspension
- Volunteers
- 30 people
- Sponsor
- Minia University
Myopia
A Prospective Evaluation of Contrast Sensitivity and Disability Glare in Refractive Surgery, a Sub-Study of: Initial Evaluation of Excimer Laser Keratorefractive Surgery in U.S. Army Personnel (WU # 2335-99)
The purpose of this study is to conduct a prospective assessment of small target contrast sensitivity and disability glare in refractive surgery.
- Trial name
- NCT00413868
- Testing
- LASIK, PRK, Small target contrast sensitivity and disability glare
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Walter Reed Army Medical Center
Open-angle Glaucoma
Comparative Study of Ologen Collagen Matrix Versus Mitomycin-C in Trabeculectomy: A Study in Germany
The aim of this prospective randomized study is to investigate the efficacy and safety of trabeculectomy with ologen Collagen Matrix versus trabeculectomy using mitomycin C (MMC) in patients with medically uncontrolled open angle…
- Trial name
- NCT01174420
- Testing
- Use of ologen Collagen Matrix in trabeculectomy, Use of Mitomycin-C in trabeculectomy
- Where
- Germany
- Volunteers
- 40 people
- Sponsor
- Aeon Astron Europe B.V.
Myopia, Astigmatism
LASIK Surgery With a New Laser for the Treatment of Myopia Without Astigmatism
The AQUARIUZ ablation laser is a solid-state laser and has been CE approved for corneal surgery since March 2020 for the treatment of short- and longsightedness with and without astigmatism.
- Trial name
- AQUARIUZ2020 (NCT04794023)
- Testing
- Corneal Ablation
- Where
- Switzerland
- Volunteers
- 27 people
- Sponsor
- Ziemer Ophthalmic Systems AG
Cataracts
Comparison of the Effectiveness of Povidone-iodine in Reducing Conjunctival Bacterial Load Prior to Cataract Surgery in Patients Treated With a Lidocaine Gel Dilating Formulation Versus Eye Drops: A Randomized Controlled Trial
The eye contains a lens that focuses light. A clouding of the lens is known as a cataract. Cataracts decrease vision. The treatment for cataracts is cataract surgery.
- Trial name
- NCT01898728
- Testing
- topical povidone-iodine after premedication with topical liquid eye drops, topical povidone-iodine after premedication with topical gel
- Where
- Canada
- Volunteers
- 101 people
- Sponsor
- McMaster University
Cataract Extraction
Comparison of Visual Outcomes and Patient Satisfaction After Cataract Surgery and Implantation of ReSTOR and ReZoom IOLs
Cataract is prevalent throughout the world and IOLs are routinely implanted after the extraction of the cataractous lens. It is the most frequently performed surgery in the United States with an estimated 2-3 million procedures…
- Trial name
- NCT00366587
- Testing
- Cataract surgery and IOL implantation
- Where
- United States
- Volunteers
- 48 people
- Sponsor
- Medical University of South Carolina
Myopia, Astigmatism
Evaluation of Visual Outcomes After Myopic LASIK
The aim of the study was to evaluate visual outcomes, contrast sensitivity, glare testing and high order aberrations induced by different laser technologies and to evaluate differences in aberrometer technology.
- Conditions
- Myopia, Astigmatism, Myopic Astigmatism
- Trial name
- NCT00366743
- Testing
- Conventional LASIK, Wavefront-guided LASIK
- Volunteers
- 120 people
- Sponsor
- Medical University of South Carolina
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