Clinical trials: Ophthalmic Surgery
Uterus Myoma, Uterine Cancer
Effect of Anesthetic Agents on Optic Nerve Sheath Diameter
The present study is to evaluate the effect of anesthetic agents ( propofol , sevoflurane) on intracranial pressure of female patients undergoing laparoscopic-robotic surgery.
- Trial name
- NCT03701529
- Testing
- Sevoflurane, Propofol
- Where
- South Korea
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Hallym University Kangnam Sacred Heart Hospital
Meibomian Gland Dysfunction, Blepharitis
Analysis of the Results of Intense Pulsed Light Treatment Previously to Laser Refractive Surgery
Dry eye is often reported as the most common complication after a laser refractive surgery. Any refractive procedure can lead an impact on the corneal surface and the tear film.
- Trial name
- NCT05139511
- Testing
- Study group, Control group
- Where
- Spain
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Vissum, Instituto Oftalmológico de Alicante
Dry Eye, Cataract Surgery
Use of Prophylactic Lubricating Drops After Cataract Surgery
This is a randomised controlled trial to assess the use of prophylactic lubricant eye-drops for 6 weeks following uncomplicated, routine cataract surgery to improve patient satisfaction and symptoms of dry eye, compared to…
- Conditions
- Dry Eye, Cataract Surgery, Patient Related Outcome Measures, Patient Satisfaction
- Trial name
- NCT04131335
- Testing
- AEONTM Repair, Routine post-operative eye drops used.
- Where
- United Kingdom
- Volunteers
- 168 people, healthy volunteers welcome
- Sponsor
- Guy's and St Thomas' NHS Foundation Trust
Cataract
Analysis of Cataract Surgery Induced Dry Eye
This is a retrospective study to determine if rates of osmolarity and dry eye disease symptoms increase following cataract surgery.
- Trial name
- NCT01471561
- Where
- 4 sites in United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- TearLab Corporation
Dry Eye Disease (DED), Cataract
Impact of DED on the Accuracy of Preoperative Keratometry Values in the Calculation of IOL Power for Cataract Surgery.
This study looks at how dry eye disease can affect important eye measurements needed before cataract surgery. These measurements guide us in choosing the right artificial lens to implant, which is essential for achieving clear…
- Trial name
- NCT06989827
- Testing
- Preservative free artificial tear
- Where
- Croatia
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University Hospital Sestre Milosrdnice
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
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.
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
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
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
Cataract
Using Psychophysics Methods to Investigate Sensory Dominance After Cataract Surgery
Using Psychophysics Methods for Quantitative Assessment of Sensory Binocular Imbalance After Cataract Surgery
- Trial name
- NCT06751342
- Where
- China
- Volunteers
- 96 people, healthy volunteers welcome
- Sponsor
- Wenzhou Medical University
Glaucoma
Baerveldt Versus Paul Study
The Baerveldt Versus Paul (BvP) Study is a Registry-based Randomised Controlled Trial, Comparing the Baerveldt Glaucoma Implant (BGI) and the Paul Glaucoma Implant (PGI).
- Trial name
- BvP (NCT07733453)
- Testing
- Baerveldt Glaucoma Implant, Paul Glaucoma Implant
- Where
- 4 sites in Australia
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University of Sydney
Cataract Senile
Biaxial Microincision Cataract Surgery Technique
To analyze and compare visual results, keratometry, SIA and HOAs outcomes of biaxial microincision cataract surgery in elderly population, including diabetic and non-diabetic patients.
- Trial name
- BiMICS14vs18 (NCT03793101)
- Testing
- BiMICS
- Where
- Poland
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Eyemed Centrum Okulistyczne
Nasolacrimal Duct Obstruction
A Comparison of Endonasal Dacryocystorhinostomy With and Without Silicone Tubes
Aim of study is to investigate whether the use of silicone tubes in endonasal DCR surgery increases the success rate and / or complication rate compared to surgery without tubes.
- Trial name
- NCT00784992
- Testing
- Endonasal dacryocystorhinostomy
- Where
- 2 sites in Canada
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Myopia, High Myopia
Clinical Results of Small Incision Lenticule Extraction (SMILE) for the Correction of High Myopia
Small Incision Lenticule Extraction (SMILE) was introduced in 2011 using the VISUMAX femtosecond laser (Carl Zeiss Meditec, Jena, Germany). It is designed for correction of myopia and myopic astigmatism.
- Trial name
- NCT04110067
- Testing
- Small Incision Lenticule Extraction (SMILE) with Visumax (Carl Zeiss Meditec, Jena)
- Where
- Germany
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- Suphi Taneri
Dementia, Mild Cognitive Impairment
Evaluation of the Effect of Cataract Surgery on Cognitive Function in Very Elderly Patients
The study intends to measure the evolution over time of the cognitive capacity of patients undergoing cataract surgery in relation to the opaque lens removal surgery (cataract) in a population considered to be at risk of…
- Conditions
- Dementia, Mild Cognitive Impairment, Cataract Senile, Cataract
- Trial name
- NCT04047485
- Testing
- Visual Acuity, CAM (Confusion Assesment Method), CATQUEST 9-SF
- Where
- Italy
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Modena and Reggio Emilia
Cataract, Healthy Eye
The Heidelberg Engineering ANTERION Anterior Segment Cornea and IOL Precision and Agreement Study
This is a prospective clinical study that will be conducted at one clinical site located in the United States to assess anterior segment parameters with the ANTERION
- Conditions
- Cataract, Healthy Eye, Cornea Abnormality, Post-Keratorefractive Surgery
- Trial name
- NCT04130490
- Testing
- ANTERION
- Where
- United States
- Volunteers
- 176 people, healthy volunteers welcome
- Sponsor
- Heidelberg Engineering GmbH
Exotropia
Surgery for Large Angle Exotropia Two Muscles Versus Three Muscles
Comparison Between The Results Of Two Muscles Surgery And Three Muscles Surgery For The Treatment Of Large Angle Exotropia
- Trial name
- XT (NCT05643456)
- Testing
- surgery
- Where
- Egypt
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Cairo University
Ocular Inflammation
PGE2 Levels in Patient Treated With NSAIDs
The aim of this study is to determine vitreous levels of nonsteroidal antinflammatory drugs (NSAIDs) and prostaglandinE2 (PGE2) in eyes scheduled for vitrectomy. All patients received the study drugs for 3 days before surgery.
- Trial name
- NCT03597867
- Testing
- Dicloftil, Nevanac, Indom
- Where
- Italy
- Volunteers
- 104 people, healthy volunteers welcome
- Sponsor
- University of Trieste
MCS vs ReLACS, Pain Perception Postoperatively First Eye vs Second Eye
A Comparison of Patient Perceptions Undergoing Manual Cataract Surgery (MCS) vs Refractive Laser-assisted Cataract Surgery (ReLACS) in First and Second Eyes
The focus of this study is to assess how pain can be mitigated for patients undergoing cataract surgery through the early application of anesthesia prior to the surgery as compared to the standard timing, and by using the ReLACS…
- Conditions
- MCS vs ReLACS, Pain Perception Postoperatively First Eye vs Second Eye, Early Anesthesia vs Standard Anesthesia
- Trial name
- NCT04623229
- Testing
- MCS, ReLACS Early, ReLACS Standard
- Where
- Canada
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- Uptown Eye Specialists