Clinical trials: Anterior Segment Disorders
Strabismus, Tomography, Optical Coherence
Measurement of Insertion of Extraocular Muscles Using Anterior Segment Optical Coherence Tomography
Study designed to determine the ability and accuracy of anterior segment optical coherence tomography (AS-OCT) to measure the distance between the corneoscleral limbus and the insertion site of the extraocular muscles (EOM) in…
- Trial name
- NCT02454920
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- University of Miami
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
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
Punctal Stenosis
Diagnosis of Acquired Punctal Stenosis Using Anterior Segment Optical Coherence Tomography
Purpose of the study To evaluate the lower puntum dimensions in cases of acquired punctal stenosis(APS), using anterior segment optical coherence tomography (AS-OCT).
- Trial name
- NCT03498144
- Testing
- Anterior segment OCT
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Minia University
Glaucoma, Cataract
Comparative Study of the Cornea/Anterior Segment OCT CASIA2 and the RTVue XR OCT Avanti With AngioVue Software
This study is a prospective comparative, randomized, single center study to gather agreement and precision data in all subjects.
- Trial name
- NCT04486976
- Testing
- Cornea/Anterior Segment OCT CASIA2, Optovue RTVue XR Avanti
- Where
- United States
- Volunteers
- 134 people, healthy volunteers welcome
- Sponsor
- Tomey Corporation
Refractive Errors, Myopia
Correlation Between Preoperative Refraction and Anterior Segment Parameters With ICL Vault
This prospective non-comparative interventional study aims to analyse the pre-operative factors affecting the range of optimal ICL vaulting.
- Conditions
- Refractive Errors, Myopia, Myopic Astigmatism
- Trial name
- NCT05670626
- Testing
- Refractive Surgery
- Where
- Egypt
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Kasr El Aini Hospital
Smoking ( Cigarette), Cornea
Acute Ocular Effects of Cigarette Smoking
This prospective study aims to evaluate the short-term effects of smoking on corneal tomographic and biometric measurements in healthy adults.
- Conditions
- Smoking ( Cigarette), Cornea, Anterior Eye Segment Measurements
- Trial name
- NCT07580040
- Testing
- Cigarette Smoking Exposure, No Smoking Exposure
- Where
- Turkey (Türkiye)
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- Istanbul University
Measurement of the Elasticity of the Anterior Eye Segment
A Pilot Study to Test the Safety and Feasibility of a Brillouin Ocular Analyzer
A Brillouin ocular analyzer uses a low-power near infrared laser light to probe the viscoelastic properties of the cornea and crystalline lens in the eye.
- Trial name
- Brillouin I (NCT01775007)
- Testing
- Brillouin Ocular Analyser
- Where
- 2 sites in United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Anterior Segment Ischemia (Diagnosis)
Effects of Selenium and Melatonin on Ocular Ischemic Syndrome
ABSTRACT: PURPOSE: To determine the effects of selenium, melatonin and selenium + melatonin administered for one month on anterior chamber (AC ) malondialdehyde (MDA) and AC glutathione (GSH) levels in patients with Ocular…
- Trial name
- NCT04005222
- Testing
- SELENIUM, MELATONIN
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Beytepe Murat Erdi Eker State Hospital
Juvenile Systemic Lupus Erythematosus
AS-OCT Study of Cornea and Tear Film Parameters in Juvenile SLE Patients
The aim of thie study to assess tear film parameters such as tear meniscus height (TMH), tear meniscus area (TMA), and tear meniscus depth (TMD).
- Trial name
- NCT05015465
- Testing
- Anterior Segment OCT
- Where
- Egypt
- Volunteers
- 140 people, healthy volunteers welcome
- Sponsor
- Minia University
Keratoconus
Evaluation of Corneal Epithelial Mapping in Diagnosis of Early Keratoconus by Anterior Segment Optical Coherence Tomography
The cornea, as the outermost refractive structure of the eye, plays a critical role in maintaining clear vision. Its transparency and structural integrity are essential for optimal visual function.
- Trial name
- NCT06914973
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Assiut University