Clinical trials: Ocular Surface
Computer Vision Syndrome
Prevalence and Sequelae of Computer Vision Syndrome in Egyptian Universities
CVS-F4 questionnaire will be used as an instrument to survey CVS prevalence and severity among medical students
- Trial name
- NCT05187221
- Testing
- CVS Group
- Where
- 2 sites in Egypt
- Volunteers
- 8,085 people, healthy volunteers welcome
- Sponsor
- Sohag University
Dry Eye Disease (DED), Meibomian Gland Dysfunction (Disorder)
Effect of Oral Isotretinoin on Ocular Surface and Meibomian Glands
The aim of the study was to evaluate meibomian gland morphology using non-contact meibography and ocular surface changes in patients with acne vulgaris treated with isotretinoin as indicators of dry eye, which is known to be a…
- Conditions
- Dry Eye Disease (DED), Meibomian Gland Dysfunction (Disorder), Acne Vulgaris
- Trial name
- NCT07753811
- Testing
- isotretinoin
- Where
- Egypt
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Benha University
Tear Film Characteristics
Quantifying Ocular Surface Aberrations After Tear Film Interventions
The CA-800 Corneal Analyzer (Visia Imaging S.R.L., Italy) is a device that can measure small imperfections in the tear film when the eyes are open.
- Trial name
- GAMBIA (NCT06966349)
- Testing
- Systane Complete Preservative-Free, Senofilcon A, Somofilcon A
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Eye Manifestations
Ocular Surface Changes in Patients With Cystic Fibrosis
Cystic fibrosis(CF) is an inherited disease affecting children, adolescents and young adults with dysfunction of secretory glands.It is caused by mutations in the protein-coding gene which function as the cystic fibrosis…
- Trial name
- NCT00345280
- Testing
- impression cytology, obtain the tear fluid
- Where
- Poland
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- University of Bialystok
Dry Eye Disease
Comparison of Mucin Levels at the Ocular Surface of Visual Display Users With and Without Dry Eye Disease
The study aimed to evaluate 1) if levels of the glycocalyx membrane mucins, including MUC1, MUC4, MUC16 and MUC20, are altered in conjunctival cells of visual display users With and Without Dry Eye Disease, and 2) if mucin levels…
- Trial name
- NCT05604651
- Testing
- no intervention
- Where
- China
- Volunteers
- 94 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Dry Eye Syndrome
Evaluation of Tear Osmolarity Over Time With Sustained Use of Thera Tears Lubricating Drops
The objective of the study is to demonstrate a change in osmolarity over time when moderate to severe dry eye subjects are treated with TheraTears lubricating drops.
- Trial name
- AKORN (NCT02758327)
- Testing
- TheraTears Lubricating Eye Drops
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Koffler Vision Group
Ocular Surface Disease, Irregular Astigmatism
Evaluation of the Safety and Efficacy of Rigid Breathable Scleral Contact Lenses for the Correction of Ametropia
To evaluate the short-term efficacy and safety of scleral contact lens in the clinical treatment of patients with irregular astigmatism after corneal transplantation by analyzing ocular parameters and ocular surface conditions of…
- Conditions
- Ocular Surface Disease, Irregular Astigmatism, Contact Lens Complication, Corneal Astigmatism
- Trial name
- NCT06256770
- Where
- China
- Volunteers
- 176 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Sjogren's Syndrome, Dry Eye
Assessment of Inflammatory and Functional Changes in the Ocular Surface Associated With Dry Eye Disease
This project will examine the similarities and differences of the ocular surface and tear film in patients with Sjogren's syndrome related to dry eye, severe dry eye and those who do not have dry eye.
- Trial name
- JADE (NCT00809003)
- Where
- Canada
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Pterygium, Dry Eye
Using Impression Cytology to Observe the Cytological Changes of Ocular Surface Cells in Various Ocular Surface Disorders
Currently, due to the advantage of noninvasive, localized, rapid, painless and easily repeatable of impression specimens, the technique is an ideal method of investigating ocular surface disorders when the diagnosis is not…
- Conditions
- Pterygium, Dry Eye, Tumor
- Trial name
- NCT01387971
- Where
- Taiwan
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Duchenne Muscular Dystrophy (DMD)
Research on the Relationship Between Scoliosis, Pain, Quality of Life, and Trunk Muscle Compensation Patterns Among Patients with Duchenne Muscular Dystrophy.
Objective: The objective of this observational study is to evaluate and quantify trunk muscle compensatory movement patterns in patients with Duchenne Muscular Dystrophy (DMD) using computer vision technology.
- Trial name
- NCT06755138
- Testing
- Observational Assessment
- Where
- South Korea
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Seoul National University Hospital
Allergic Conjunctivitis
The Role of Vitamin D in Corneal Epithelial Barrier Function, Ocular Microbiome, Ocular Inflammation, and Visual Acuity of Children With Allergic Conjunctivitis
A double-blind study to evaluate the role of vitamin D in corneal epithelial barrier function, ocular microbiome, ocular inflammation, and visual acuity of children with allergic conjunctivitis.
- Trial name
- NCT05839938
- Testing
- Vitamin D
- Where
- Taiwan
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- China Medical University Hospital
Covid19
Eye Detection to Identify Novel Coronavirus Infection
The eye characteristics of patients with COVID-19 and those without the disease were analyzed, and whether they had the disease or not was judged according to the eye characteristics.
- Trial name
- NCT04907981
- Testing
- Novel coronavirus infection
- Where
- China
- Volunteers
- 232 people, healthy volunteers welcome
- Sponsor
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Eye Diseases, Ocular Surface Disease
Pediatric Eye Care Investigated Team
Use cohort research to analyze and compare eyes of healthy children and children with systemic diseases. Understand and analyze the incidence, characteristics and influencing factors of children's ocular surface diseases.
- Conditions
- Eye Diseases, Ocular Surface Disease, Systemic Disease, Children
- Trial name
- PECT (NCT05247099)
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Conjunctivitis, Allergic
OJO-miR: microRNA Expression in Allergic Conjunctivitis.
Allergic conjunctivitis (AC) causes inflammation of the conjunctiva in response to environmental allergens, affecting a significant percentage of the world population and reducing quality of life.
- Trial name
- OJO-miR (NCT07385495)
- Where
- Mexico
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Instituto de Oftalmología Fundación Conde de Valenciana
Limbal Stem-cell Deficiency
Multiple Noninvasive Examination Modality to Evaluate the Severity of Ocular Surface Disorders
Here the investigators proposed this study to collect cases of different etiologies of ocular surface diseases. With at least one of these four non-invasive examination modalities, the investigators aim to analyze and compare the…
- Trial name
- NCT03594370
- Where
- Taiwan
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Glaucoma, Ocular Surface Disease
Treatment of Ocular Discomfort in Glaucoma Patients Using Multiple Topical Medications
To evaluate glaucoma patients' response to treatment with Xiidra, an FDA-approved drug for ocular surface discomfort, which will be prescribed as standard of care treatment.
- Trial name
- NCT04354545
- Testing
- Xiidra (Lifitegrast ophthalmic solution) 5%
- Where
- United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Ocular Surface Disease
Comparison Between Lathe Cut Versus Cast Molding Soft Contact Lens Technique on Ocular Surface Integrity
"Comparison between Lathe Cut versus Cast Molding Soft Contact Lens Technique on Ocular Surface Integrity" investigates the impact of two different manufacturing methods on the health and integrity of the ocular surface.
- Trial name
- NCT06495112
- Testing
- Soft contact lens with lathe cut technique Lathe, Soft contact lens with cast molding technique
- Where
- Pakistan
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Superior University