Clinical trials: Ophthalmic Surgery
Refractive Surgery
Analysis of Ocular Surface Microbiota in Dry Eye Patients After Femtosecond Laser-assisted In-situ Keratomileusis (FS-LASIK)
By using 16S rRNA sequencing technology to analyze the changes in ocular surface microbiota before and after surgery, as well as the impact of changes in ocular surface microbiota on FS-LASIK induced DES, new treatment ideas are…
- Trial name
- NCT06448468
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Nanchang University
Cataract
Clinical Outcomes of Patients Bilaterally Implanted With the TECNIS® Symfony or TECNIS® Symfony Toric Extended Range of Vision IOL
In With increased patients' demand for a spectacle-free lifestyle and technological advancements, cataract surgery with multifocal intraocular lens (IOL) implantation has become an effective solution for correcting presbyopia in…
- Trial name
- NCT03997890
- Testing
- Cataract surgery with binocular implantation of either Symfony (ZXR00) or Symfony toric (ZXT) IOLs
- Where
- South Korea
- Volunteers
- 96 people
- Sponsor
- Yonsei University
Cataract, Astigmatism
Femtosecond Laser Arcuate Keratotomy Versus Toric Intraocular Lens Implantation in Cataract Surgery
In modern cataract surgery, residual astigmatism continues to be one of the major factors influencing patients' visual quality and satisfaction.
- Trial name
- NCT06215807
- Testing
- Femtosecond laser arcuate keratotomy, Toric intraocular lens implantation
- Where
- China
- Volunteers
- 200 people
- Sponsor
- Second Affiliated Hospital, Zhejiang University, School of Medicine
Coordination Impairment
Physical Activity on Eye Hand Coordination Post Strabismus Surgery
The aim of this study is to determine the effect of physical activity on eye hand coordination in patient with amblyopia after strabismus surgery.
- Trial name
- NCT06759792
- Testing
- eye hand coordination exercises
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Amany Refaat Mohamed Abdel Wahid
Primary Acquired Nasolacrimal Duct Obstruction
External Versus Powered Endoscopic Dacryocystorhinostomy With Mitomycin C for Primary Acquired Nasolacrimal Duct Obstruction
Primary acquired nasolacrimal duct obstruction causes persistent tearing because tears cannot drain normally from the eye into the nose.
- Trial name
- NCT07754058
- Testing
- External Dacryocystorhinostomy, Powered Endoscopic Dacryocystorhinostomy, Mitomycin C 0.02%
- Where
- Poland
- Volunteers
- 60 people
- Sponsor
- Military Institute od Medicine National Research Institute
Cataract, Inflammation
Mapracorat Ophthalmic Suspension, 3% for the Treatment of Ocular Inflammation and Pain Following Cataract Surgery
The objective of this clinical study is to compare the safety and efficacy of mapracorat ophthalmic suspension, 3% with its vehicle for the treatment of postoperative inflammation and pain following cataract surgery.
- Conditions
- Cataract, Inflammation, Surgery
- Trial name
- NCT01591655
- Testing
- Mapracorat, Vehicle
- Where
- United States
- Volunteers
- 360 people
- Sponsor
- Bausch & Lomb Incorporated
Mixed Astigmatism
Study of the MEL 80 Excimer Laser Using LASIK in the Treatment of Mixed Astigmatism
The purpose of this study is to determine whether the MEL 80 Excimer Laser is effective in the treatment of mixed astigmatism up to 6.0 D, when used as part of the Laser In Situ Keratomileusis (LASIK) procedure.
- Trial name
- NCT00761826
- Testing
- MEL 80 Mixed Astigmatism Treatment
- Where
- 5 sites in United States
- Volunteers
- 126 people, healthy volunteers welcome
- Sponsor
- Carl Zeiss Meditec, Inc.
Idiopathic Macular Hole, Macular Hole
Intraocular Gas Tamponade for Treatment of Large Idiopathic Macular Holes
The goal of this clinical trial is to evaluate the visual and anatomical outcomes of large (410-1000 μm) full-thickness macular holes repair surgery using perfluoropropane (15% C3F8), sulfur hexafluoride (20% SF6) gas tamponade.
- Conditions
- Idiopathic Macular Hole, Macular Hole, Macular Holes, Full Thickness Macular Hole
- Trial name
- NCT06927544
- Testing
- Pars plana vitrectomy
- Where
- Ukraine
- Volunteers
- 100 people
- Sponsor
- The Filatov Institute of Eye Diseases and Tissue Therapy
Blood Coagulation Disorders
The Effect of Voltaren-ophtha 0.1% Eye Drops on INR Levels (International Normalized Ratio) in Patients Taking Warfarin
A prospective study intended to examine the effect of topical Voltaren-Ophtha 0.1% eye drops after cataract surgery on INR levels (international normalized ratio) in patients taking warfarin.
- Trial name
- NCT02782338
- Testing
- Voltaren ophtha 0.1%
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Wolfson Medical Center
Retinal Displacement After Retinal Detachment Surgery
Influence of Perfluorocarbon Liquid (LIQUID) During Pars Plana Vitrectomy on Retinal Vessel Displacement in Primary Macula-involving Rhegmatogenous Retinal Detachment
Rhegmatogenous retinal detachment (RRD) is an acute, sight threatening condition, with an incidence of approximately 10 per 100,000 people.
- Trial name
- LIQUID (NCT07027098)
- Testing
- Perflurocarbon liquid, Without Perflurocarbon liquid
- Where
- United Kingdom
- Volunteers
- 292 people
- Sponsor
- Norfolk and Norwich University Hospitals NHS Foundation Trust
Glaucoma
A Study of Yutiq Steroid Insert During Glaucoma Tube Implant Surgery
This is a pilot study, which will include approximately five eyes of 5 patients. This study proposes that a sustained release steroid insert (Yutiq)1 be implanted along with a glaucoma drainage device (Ahmed Glaucoma Valve (AGV)…
- Trial name
- NCT04918121
- Testing
- Yutiq 0.18 MG Drug Implant
- Where
- United States
- Volunteers
- 5 people
- Sponsor
- Sanjay Asrani
Macular Holes, Epiretinal Membrane
Multimodal Imaging in Vitreo-retinal Surgery and Macular Dystrophies
The aim of the study is to identify morphological and functional biomarkers of post-operative recovery after vitreoretinal surgery, using decisional support systems (DSS), based on multimodal big-data analysis by means of machine…
- Conditions
- Macular Holes, Epiretinal Membrane, Retinal Detachment, Macular Dystrophies
- Trial name
- MICAI (NCT05747144)
- Testing
- Biometry, Retinography (Color) + Autofluorescence (AF), OCT B-scan and OCT angiography (OCTA)
- Where
- Italy
- Volunteers
- 100 people
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Subject With Primary Open-angle Glaucoma (POAG)
A Prospective Evaluation of Open-Angle Glaucoma Subjects on Two Topical Hypotensive Medications Treated With One Suprachoroidal Stent
The purpose of this study is to assess the efficacy and safety of one iStent supra stent in the reduction of intraocular pressure associated with primary open-angle glaucoma.
- Trial name
- NCT01252914
- Testing
- iStent Supra Stent
- Where
- Armenia
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Glaukos Corporation
Optic Nerve Sheath Diameter
Changes in Optic Nerve Sheath Diameter in Desflurane Based General Anesthesia During Laparoscopic Cholecystectomies
In this study, the investigators to observe the effects of different fresh gas flow rates, which are frequently used in general anesthesia practice, on optic nerve sheath diameter during laparoscopic cholecystectomy surgeries…
- Trial name
- NCT06896604
- Testing
- Ocular Ultrasonography for measuring Optic Nerve Sheath Diameter
- Where
- Turkey (Türkiye)
- Volunteers
- 64 people
- Sponsor
- Fatih Sultan Mehmet Training and Research Hospital
Intraocular Lens Dislocation
Late In-the-bag intraOcular Lens dislocatioN Surgery
Overall aim of the study is to compare the safety and efficacy of two different surgical methods to treat Late In-the-bag intraocular lens dislocation.
- Trial name
- LION (NCT03276104)
- Testing
- IOL repositioning, IOL exchange
- Where
- Norway
- Volunteers
- 50 people
- Sponsor
- Oslo University Hospital
Pediatric Cataract
The Cohort Study of Pediatric Cataract
This retrospective-prospective bidirectional cohort study aims to observe ocular parameter changes, different surgical/vision recovery strategies and postoperative adverse effects among young children with cataract.
- Trial name
- NCT05472844
- Where
- China
- Volunteers
- 5,000 people
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Long-Eye Surgeries
Remifentanil and Remimazolam to Limit Patient Movement
Local anesthetics (LA) may be administered by injection (retrobulbar, peribulbar, subconjunctival, lid, or facial block) or by instillation (topical anesthesia), Considerable drawbacks of local anesthesia in these patients…
- Trial name
- NCT06583811
- Testing
- Remifentanil
- Where
- Egypt
- Volunteers
- 70 people
- Sponsor
- Egymedicalpedia
Disorders, Refractive
A Comparison of Two Devices for Measuring the Central Thickness of the Cornea Before and After Surgery (CECOT)
Corneal topography allows the measure of the radii of curvature and of the thickness of the cornea. It is essential for diagnosis in ophthalmology and allows to highlight corneal irregularities such as a keratoconus, or too thin…
- Trial name
- CECOT (NCT02522416)
- Testing
- Central corneal thickness measurement
- Where
- France
- Volunteers
- 50 people
- Sponsor
- Fondation Ophtalmologique Adolphe de Rothschild
Cataract Unilateral Pending Extraction, Anesthesia
Comparing Ropivacaine and Bupivacaine in DTFNB Anesthesia in Patients Undergoing Phacoemulsification
Deep topical fornix nerve block anaesthesia is now a known form of nerve block for cataract surgeries by phacoemulsification. In this study the investigators intend to compare ropivacaine and bupivacaine in various parameters…
- Trial name
- DTFNB (NCT02925832)
- Testing
- Deep Topical Fornix Nerve block anesthesia, Ropivacaine, Bupivacaine
- Where
- India
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Government Medical College, Haldwani
Child, Anesthesia Morbidity
A Study on the Effects of Midazolam on Delirium After Sevoflurane Anesthesia in Pediatric Strabismus Surgery
Sevoflurane with its rapid induction and emergence, hemodynamic stability, and nonirritating airway properties, has acquired widespread acceptance in children.
- Conditions
- Child, Anesthesia Morbidity, Delirium on Emergence
- Trial name
- NCT01680471
- Testing
- Midazolam 0.03mg/kg, Midazolam 0.05mg/kg
- Where
- South Korea
- Volunteers
- 90 people
- Sponsor
- Korea University Anam Hospital
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