Clinical trials: Pigment Deposition
Retinal Dystrophies, Age-related Macular Degeneration
Retinal Imaging by Adaptive Optics in Healthy Eyes and During Retinal and General Diseases
Using an adaptive optics imaging device, retinal structures are observed in healthy and diseased subjects.
- Conditions
- Retinal Dystrophies, Age-related Macular Degeneration, Arterial Hypertension, Diabetes
- Trial name
- iPhot (NCT01546181)
- Where
- France
- Volunteers
- 256 people, healthy volunteers welcome
- Sponsor
- Institut National de la Santé Et de la Recherche Médicale, France
Macular Pigmentation, Skin Pigment
Macular Pigment Measurements in Eye & Other Tissues
The purpose of this study is to understand the role of nutrition and its effects on the eye and other tissues. The investigators propose to study this by validating and correlating various non-invasive measurement methods of…
- Trial name
- NCT03022773
- Testing
- Carotenoid measurements
- Where
- United States
- Volunteers
- 10,000 people, healthy volunteers welcome
- Sponsor
- University of Utah
Diabetic Retinopathy, DR
Epivascular Glia Regression and Macular Pigment Restoration After Faricimab in Diabetic Retinopathy
The aim of the study is to evaluate in diabetic patients affected by diabetic retinopathy epivascular glia regression and macular pigment restoration after faricimab injection in diabetic retinopathy in a 1 year follow up
- Trial name
- GLIA-MAC (NCT07526857)
- Testing
- Faricimab Injection [Vabysmo], Aflibercept (2.0 mg)
- Where
- Italy
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Federico II University
Psoriasis
Levels of Pigment Epithelium-derived Factor in Patients With Psoriasis.
Psoriasis is an immune-mediated chronic inflammatory skin disease associated with increase interaction of inflammatory mediators like adipokines.
- Trial name
- NCT05252741
- Testing
- serum samples and punch skin biopsies
- Where
- Egypt
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Sohag University
Healthy
Normal Human Electro-Oculogram
This study will measure the normal range of the human electro-oculogram (EOG) in people of various age groups. EOGs are recordings of electrical signals generated by the retina (the light-sensitive tissue in the back of the eye)…
- Trial name
- NCT00001610
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Sunburn, Sun Damaged Skin
Natural Sunlight Protection and Simulated Sunlight Protection Offered by Sunscreens and Fabrics
The purpose of this study is to assess how human skin reacts and how sunscreens and sun protection fabrics protect in natural sunlight compared to their labeled claims, indoor testing methods (existing or modified) and…
- Conditions
- Sunburn, Sun Damaged Skin, Overexposure to Sun Rays
- Trial name
- NCT03007589
- Testing
- otc sunscreens, sun protection fabrics, Optical Filters
- Where
- 5 sites in United States, Chile and 1 more
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Sun Protection Foundation
Raman Spectroscopy
Raman Scattering Spectroscopy to Measure Macular Pigment
This study will evaluate the ease and reliability of Raman scattering spectroscopy, a new technique to measure the amount of the pigment lutein in the retina, the light-sensitive tissue lining the back of the eye.
- Trial name
- NCT00060580
- Testing
- Raman scattering spectroscopy
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Primary Open Angle Glaucoma, Ocular Hypertension
The Efficacy of Selective Laser Trabeculoplasty
Selective laser trabeculoplasty (SLT) is a new method to reduce intraocular pressure in eyes with open angle glaucoma or ocular hypertension. SLT may also be effective for cases with previously failed ALT procedures.
- Conditions
- Primary Open Angle Glaucoma, Ocular Hypertension, Pseudo-Exfoliative Glaucoma, Pigment Dispersion Glaucoma
- Trial name
- NCT00347893
- Testing
- Selective laser trabeculoplasty
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Glaucoma Research & Education Group
Inherited Retinal Dystrophy Primarily Involving Sensory Retina, Inherited Retinal Dystrophy Primarily Involving Retinal Pigment Epithelium
Establishment of the National Registry for Inherited Retinal Dystrophy in Iran
Purpose: To establish of the national Inherited Retinal Dystrophy Registry (IRDR) in Iran. Methods: This study is a community-based participatory research that is approved by the Ministry of Health and Medical Education of Iran…
- Trial name
- NCT04131400
- Testing
- Visual Acuity Testing and Retinal Imaging
- Where
- Iran
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences
Glaucoma, Healthy
Cause of Pigment Dispersion Syndrome
The purpose of this study is to learn how pigment is released from the iris (the colored part of the eye) in patients with pigment dispersion syndrome.
- Conditions
- Glaucoma, Healthy, Pigment Dispersion Syndrome
- Trial name
- NCT00005919
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- National Eye Institute (NEI)
Skin Pigment, Pulse Oximetry
Neonatal Pulse Oximetry Disparities Due to Skin Pigmentation
The goal of this clinical trial is to determine if pulse oximeters show an SaO2-SpO2 discrepancy that correlates with skin pigmentation such that pulse oximetry will overestimate oxygenation in newborns with darker skin.
- Trial name
- Neo-PODS (NCT06063148)
- Testing
- Enrolled Participant
- Where
- 2 sites in United States
- Volunteers
- 163 people, healthy volunteers welcome
- Sponsor
- University of California, Davis