Clinical trials: Opacity
Prader Willi Syndrome, Obesity
Characterization of Transcriptional Regulators of Ghrelin Hormone Which Causes Genetic Obesity
The problem point of the Prader-Willi Syndrome (PWS) patient is the obesity which is intense and the plasma ghrelin level which increases unusual from the recently PWS patients was discovered.
- Trial name
- NCT01404624
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Samsung Medical Center
Keratoconus, Corneal Dystrophies
Laser Assisted Procedures in Penetrating Keratoplasty
Laser- assisted procedures in penetrating keratoplasty (PK) are proposed to improve the surgical outcomes: minimally invasive procedures, improved biomechanical stability of the transplanted flap, reduction of rejection risks…
- Conditions
- Keratoconus, Corneal Dystrophies, Corneal Opacity
- Trial name
- NCT02173847
- Testing
- Penetrating keratoplasty, Femtosecond laser, Diode laser
- Where
- Italy
- Volunteers
- 22 people
- Sponsor
- Ospedale Santo Stefano
Corneal Opacity
Characteristics of Trachomatous Corneal Opacity in Fayoum University Hospital
The purpose of this study is to assess the characteristics of trachomatous corneal opacity in patients with signs of trachoma using Anterior segment Optic coherence tomography and Pentacam
- Trial name
- Trachoma (NCT06000150)
- Testing
- Corneal topography
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Omar Said
Graft Rejection
Pathogenetic Risk Factors for Corneal Graft Rejection
There are many predictors that may influence the development of corneal graft rejection after penetrating keratoplasty. In our study investigators analysed the results of keratoplasty and the risk factors for graft rejection.
- Trial name
- NCT06281587
- Testing
- penetrating keratoplasty
- Where
- Russia
- Volunteers
- 93 people
- Sponsor
- The S.N. Fyodorov Eye Microsurgery State Institution
Cataract, Lens Opacities
A Comparison of FineVision Intraocular Lenses vs Symfony Intraocular Lenses
This is a prospective randomised open-label study with the aim to compare the visual performance of the trifocal FineVision® IOL versus the extended range of vision Symfony® IOL after phaco-emulsification cataract surgery.
- Conditions
- Cataract, Lens Opacities, Presbyopia
- Trial name
- NCT03974451
- Testing
- IOL implantation experimental, IOL implantation active comparator
- Where
- Egypt
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Beaver-Visitec International, Inc.
Congenital Cataract Polar Posterior
Visual Function in Pediatric Patients With Posterior Lens Opacities
Prognostic factors determining visual outcomes in patients with posterior polar cataracts and posterior lenticonus are largely unknown.
- Trial name
- NCT05207007
- Testing
- Phacomulsification lens removal cataract surgery with Intraocular lens(IOL) implantation
- Where
- China
- Volunteers
- 63 people
- Sponsor
- Sun Yat-sen University
Molar Incisor Hypomineralisation
Etch-bleach-seal Technique in Managing Opacities Related MIH Using Icon®
Objectives: to compare aesthetic effectiveness of resin infiltration with/without using sodium hypochlorite in managing opacities of MIH on incisors, and to compare parent's satisfaction with results of both application…
- Trial name
- NCT07162077
- Testing
- Sodium hypochlorite 5.25%, ICON resin infiltration Material group in vivo
- Where
- Syria
- Volunteers
- 15 people
- Sponsor
- Latakia University
Eye Disease, Inflammation
Analysis of Eye Tissue
The purpose of this investigation is to better understand the inflammatory process that occurs in uveitis (eye inflammation) through study of eye tissues.
- Conditions
- Eye Disease, Inflammation, Uveitis
- Trial name
- NCT00001224
- Where
- United States
- Volunteers
- 150 people
- Sponsor
- National Eye Institute (NEI)
Mucolipidosis Type IV
The Natural History of Mucolipidosis Type IV
The purpose of this study is to define the natural history of Mucolipidosis Type IV and identify potential clinical outcome measures.
- Trial name
- NCT01067742
- Where
- United States
- Volunteers
- 7 people
- Sponsor
- Baylor Research Institute
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
Purpura, Thrombocytopaenic, Idiopathic
LENS - Long-term Eltrombopag Observational Study
A long term observational ocular safety study in adults who have received study medication (either active drug or placebo) in a phase II or III clinical study evaluating eltrombopag.
- Trial name
- LENS (NCT00643929)
- Testing
- Eltrombopag
- Where
- 71 sites in United States, Australia and 19 more
- Volunteers
- 164 people
- Sponsor
- GlaxoSmithKline
Molar Incisor Hypomineralization
Three Approaches of Resin Infiltration for MIH Incisor Opacities
Molar incisor hypomineralization (MIH) is a condition which involves enamel hypomineralization of one to four first permanent molars with or without permanent incisors.
- Trial name
- NCT07715370
- Testing
- Resin infiltration, microabrasion, Etch-bleach
- Where
- Egypt
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Cataract, Congenital Anomaly
Studies of Families With Hereditary Cataracts
The objective of this study is to discover the genes responsible for the development of hereditary cataracts in families. A cataract is clouding of the lens of the eye that obstructs the passage of light and may impair vision.
- Trial name
- NCT00001609
- Where
- United States
- Volunteers
- 1,200 people
- Sponsor
- National Eye Institute (NEI)
Lung Diseases
Diagnostic Value of Chest Ultrasound in Pediatrics Lung Diseases
To evaluate the accuracy of chest ultrasound for diagnosis of different lung lesions in comparison to the gold standard among children.
- Trial name
- NCT04326972
- Testing
- ultrasound
- Volunteers
- 50 people
- Sponsor
- Assiut University
Lymph Node Metastases, Non-small Cell Lung Cancer Stage I
Mediastinal Staging Accuracy of a Selective Lymphadenectomy Strategy in Early Stage NSCLC (ECTOP-1003)
This is a clinical trial from Eastern Cooperative Thoracic Oncology Project (ECTOP), numbered as ECTOP-1003. Systemic mediastinal lymphadenectomy is deemed indispensable in lung cancer surgery for accurate staging and complete…
- Trial name
- NCT03216551
- Testing
- Intra-operative frozen section
- Where
- China
- Volunteers
- 1,076 people
- Sponsor
- Fudan University
Posterior Capsule Opacification
Quantification of Posterior Capsule Opacification in Pediatric Cataract
The purpose of this study is to quantify the opacity of posterior capsule in pediatric cataract comparing two intraocular lens materials.
- Trial name
- Cataract (NCT02968290)
- Testing
- Cataract Surgery, Alcon AcrySof SA60AT, Bausch Lomb AkreosA
- Where
- Brazil
- Volunteers
- 30 people
- Sponsor
- University of Sao Paulo
Keratoconus, Corneal Opacity
OCT in Diagnosis of Irregular Corneas
This main goal of this study is to improve the detection, classification, monitoring, and treatment of irregular corneas due to keratoconus, warpage, dry eye, scar, stromal dystrophies, and other corneal conditions.
- Conditions
- Keratoconus, Corneal Opacity, Corneal Dystrophy
- Trial name
- NCT03504800
- Testing
- Optical Coherence Tomography
- Where
- United States
- Volunteers
- 445 people, healthy volunteers welcome
- Sponsor
- Oregon Health and Science University
Bone Density Increased, Body Height
Milk Supplementation and Bone Health in Children
Objectives: to examine the effects of a Yili child formula milk and regular milk on bone health and growth in young children. Study design: cluster randomized controlled trial.
- Trial name
- NCT05074836
- Testing
- Formula milk, Regular milk, Control foods
- Where
- China
- Volunteers
- 254 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Molar Incisor Hypomineralization
Evaluation of Three Different Minimally Invasive Techniques for Management of Enamel Opacities in Patients With Molar Incisor Hypomineralization "Randomized Controlled Clinical Trial"
The controlled clinical trial will be done to evaluate Resin infiltration, Resin modified glass ionomer varnish and Light cured giomer varnish as minimally invasive techniques for management of enamel opacities of patients with…
- Trial name
- NCT06135272
- Testing
- Resin infiltration, Resin modified glass ionomer varnish, Light cured giomer varnish
- Where
- Egypt
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Lipoprotein Lipase Deficiency, Inborn Error of Lipid Metabolism
Biomarker for Homozygous Familial Hypercholesterolemia (BioHoFH)
Development of a new MS-based biomarker for the early and sensitive diagnosis of Homozygous familial Hypercholesterolemia from blood
- Conditions
- Lipoprotein Lipase Deficiency, Inborn Error of Lipid Metabolism, Corneal Arcus
- Trial name
- BioHoFH (NCT03198897)
- Where
- 4 sites in Germany, India and 1 more
- Sponsor
- CENTOGENE GmbH Rostock