Clinical trials: Anterior Segment Diseases
Cataract
Anterior Segment Changes After Phacoemulsification in Cataractous Eyes with Shallow Anterior Chamber
Phacoemulsification in shallow anterior chamber is considered to be more hazardous regarding risk of intraoperative and postoperative complications.
- Trial name
- NCT06745596
- Testing
- cataract surgery 1, cataract surgery 2
- Where
- Egypt
- Volunteers
- 24 people
- Sponsor
- Zagazig University
Spinal Fusion
Risk Factors of Second Surgery for Adjacent Segment Disease Following Anterior Cervical Discectomy and Fusion
Although the incidence of second surgery for adjacent segment disease (ASD) after anterior cervical discectomy and fusion (ACDF) has been reported, its risk factors remain elusive.
- Trial name
- 2nd ACDF (NCT03826329)
- Testing
- observational study
- Where
- Taiwan
- Volunteers
- 5,565 people
- Sponsor
- Taipei Veterans General Hospital, Taiwan
Uveitis, Anterior
Safety and Efficacy Study of Iontophoresis and Dexamethasone Phosphate to Treat Anterior Uveitis
The purpose of this study is to define a safe and effective dose of iontophoretic delivery of dexamethasone phosphate ophthalmic solution using the EyeGate® II Drug Delivery System in patients with non-infectious anterior segment…
- Trial name
- NCT00694135
- Testing
- EGP-437 1.6 mA-min at 0.4 with EyeGate® II System, EGP-437 4.8 mA-min at 1.2 mA with EyeGate® II System, EGP-437 10.0 mA-min at 2.5 mA with EyeGate® II System
- Where
- 19 sites in United States, India
- Volunteers
- 40 people
- Sponsor
- Eyegate Pharmaceuticals, Inc.
Anterior MI, Colchicine
Effect of Colchicine On Left Ventricle Function After Anterior Myocardial Infarction Assessed By Speckle Tracking
Effect of colchicine use on Left ventricles systolic function in patients with anterior S-T elevation myocardial infarction undergoing primary Percutaneous coronary intervention by using speckle tracking Echocardiography…
- Trial name
- NCT05200052
- Testing
- Colchicine 0.5 mg Oral Tablet
- Where
- Egypt
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Cataract
A Novel Congenital Cataract Category System
Congenital cataracts (CC) are the leading cause of childhood visual disabilities and treatable childhood blindness worldwide1. CC patients have a wide range of presentations of lens opacities and are generally categorized into…
- Trial name
- NCT02793869
- Where
- China
- Volunteers
- 428 people
- Sponsor
- Sun Yat-sen University
Class II Division 1 Malocclusion
Evaluation of Micro-osteoperforation on Rate of Maxillary En-masse Retraction
accelerated anterior teeth retraction with the help of microosteoperforation procedure and miniscrews.
- Trial name
- NCT03764189
- Testing
- microosteoperforation
- Where
- Egypt
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Cairo University
Thyroid Eye Disease
AS-OCT of the Cornea in Thyroid Diseases
use the anterior segment optical coherence tomography (AS-OCT) to evaluate the tear meniscus parameters, total corneal thickness (CT), and epithelial thickness in active and inactive thyroid eye diseases (TED) patients and…
- Trial name
- NCT05241626
- Testing
- AS-OCT
- Where
- 2 sites in Egypt
- Volunteers
- 70 people
- Sponsor
- Minia University
Keratoconus, High Myopia
Anterior Segment and Corneal Parameters in Keratoconus and High Myopic Astigmatism Using Schiempflug Imaging
The purpose of this study was to compare Scheimpflug corneal tomography findings in keratoconus and high myopic astigmatic eyes, as well as to establish the parameters distinguishing keratoconus from high myopic astigmatism.
- Trial name
- NCT06739018
- Testing
- pentacam scheimpflug tomography
- Where
- 2 sites in Egypt
- Volunteers
- 66 people
- Sponsor
- Assiut University
Eye Diseases
Screening for Research Subjects With Anterior Segment Diseases
This study will identify patients with anterior segment disease who may be eligible to participate in current or future NEI studies on this disease.
- Trial name
- NCT00088348
- Where
- United States
- Volunteers
- 600 people
- Sponsor
- National Eye Institute (NEI)
Keratoconus
Evaluation of the Keratoconic Cornea After Corneal Collagen Cross Linking.
Aim of work: To detect abnormal corneal thinning in keratoconus using pachymetry maps measured by high-speed anterior segment optical coherence tomography (OCT).
- Trial name
- NCT03879421
- Testing
- Accelerated corneal collagen cross linking
- Where
- Egypt
- Volunteers
- 44 people
- Sponsor
- Reham Mahmoud Abdelrahman
Anterior Segment Disorders, Artificial Intelligence
Artificial Intelligence System for Assessing Image Quality of Slit-Lamp Images and Its Effects on Diagnosis
Slit-lamp images are widely used in ophthalmology for the detection of cataract, keratopathy and other anterior segment disorders.
- Trial name
- NCT04314180
- Testing
- Taking slit-lamp images
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Diabetes, Cataract
Healing of Corneal Incision After Cataract Surgery in Diabetic Patients
The objective of this observational study was to understand the healing of corneal incision after cataract surgery in diabetic patients and its influencing factors.
- Trial name
- NCT07076420
- Where
- China
- Volunteers
- 110 people
- Sponsor
- Zhongnan Hospital
Glaucoma
Anterior Segment Changes After Pars Plana Vitrectomy With SO Using AS-OCT
To evaluate changes in ACA induced by pars plana vitrectomy with SO 1000cs injection in vitreo-retinal surgery in phakic eyes using AS-OCT and changes in the IOP preoperatively, post-operatively and post-silicone oil evacuation.
- Trial name
- NCT06524661
- Testing
- AS-OCT after vitrectomy
- Where
- Egypt
- Volunteers
- 30 people
- Sponsor
- Minia University
Blepharitis, Conjunctivitis
Evaluation and Treatment of Patients With Corneal and External Diseases
This study offers evaluation and treatment for patients with certain corneal and external diseases of the eye (diseases of the surface of the eye and its surrounding structures).
- Conditions
- Blepharitis, Conjunctivitis, Corneal Disease, Dacryoadenitis
- Trial name
- NCT00008541
- Where
- United States
- Volunteers
- 600 people
- Sponsor
- National Eye Institute (NEI)
Dental Malocclusion
Laser in Orthodontic Leveling and Alignment
to evaluate the outcome of LLLT regarding leveling and alignment of the mandibular anterior segment.
- Trial name
- NCT04376164
- Testing
- low level laser therapy
- Where
- Egypt
- Volunteers
- 26 people
- Sponsor
- Tharwat osman Mohi Eldeen Elshehawy
Abnormal Vitreous Humor Morphology, Abnormal Choroid Morphology
Accuracy of the Red Reflex Test in the Pediatric Population
This study is designed to investigate the sensitivity and specificity of the Red Reflex Test (RRT), with and without dilation, for early detection of ocular abnormalities in children and newborns.
- Conditions
- Abnormal Vitreous Humor Morphology, Abnormal Choroid Morphology, Optic Nerve Diseases, Retinal Disease
- Trial name
- NCT04125043
- Testing
- Direct ophthalmoscope
- Where
- United States
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Children's National Research Institute
Eye Injuries
Anterior Segment Spectral-domain Optical Coherence Tomography in Patients With Closed Globe Injury
This study use anterior segment spectral-domain optical coherence tomography (SD-OCT) to exam patients with closed globe injury, and compared with slit lamp examination.
- Trial name
- NCT02638025
- Testing
- OCT
- Volunteers
- 16 people
- Sponsor
- Huizhou Municipal Central Hospital
Class I Malocclusion, Maxillary Prognathism
Nano Coated Orthodontic Miniscrews for en Mass Retraction of the Upper Arch
study will be directed to evaluate silver-hydroxyapatite nano-coated versus uncoated orthodontic miniscrews for en masse retraction of the upper anterior segment.
- Conditions
- Class I Malocclusion, Maxillary Prognathism, Orthodontic Tooth Movement
- Trial name
- NCT07521267
- Testing
- Silver nanoparticles, uncoated titanium miniscrews
- Where
- Egypt
- Volunteers
- 14 people
- Sponsor
- Al-Azhar University
Anterior Urethral Stricture, Male
Anatomical and Functional Outcome of PSG Vs BMG for Urethral Substitution in Long Segment Anterior Urethral Strictures
This study aims to compare the penile skin graft and buccal mucosal graft for substitution of long anterior urethral strictures using one-sided dorsal perineal approach.
- Trial name
- NCT06056856
- Testing
- Penile skin graft substituttion urethroplasty, Buccal Mucosal Graft substitution urethroplasty
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Al-Azhar University
Keratoconus, Refractive Surgery
AI-Orchestrated Workflow Versus Consultant Ophthalmologist for Refractive Surgery and Keratoconus Diagnosis (AEYE Trial)
Background and Rationale: Laser vision correction procedures, such as LASIK (Laser-Assisted In Situ Keratomileusis), PRK (Photorefractive Keratectomy), and SMILE (Small Incision Lenticule Extraction), are highly effective but…
- Conditions
- Keratoconus, Refractive Surgery, Machine Learning, Artifical Intelligence
- Trial name
- AEYE (NCT07096232)
- Testing
- Multi-Agent AI Diagnostic Workflow (AEYE)
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Hazem Yassin Clinics