Active clinical trials for "Retinal Degeneration"

Aberrant retinoic acid signaling driven by the degenerating outer retina leads to pathological changes to the inner retina. The resulting hyperactivity of retinal ganglion cells leads to further diminution of the remaining vision in those afflicted with inherited retinal diseases. Inhibition of this pathway has led to improved visual function in murine models of retinal degeneration. This can be accomplished in humans with the FDA-approved irreversible inhibitor of aldehyde dehydrogenases, disulfiram.

An observational study to evaluate different biomarkers of subjects with geographic atrophy secondary to age-related macular degeneration

Better understand the impact of visual impairment on daily task performance in patients with eye diseases of the visual pathways, such as glaucoma and age-related macular degeneration (AMD). Longitudinal study, with biannual visits, including patients with: glaucoma, suspected of having glaucoma, non-glaucomatous optic neuropathies, AMD, retinal degenerations, other diseases involving the visual pathways, besides healthy controls. Subjects will perform standard ophthalmological exams, and the following research tests: psychophysical, eye tracking, electroencephalogram, driving simulator, virtual reality, balance assessment, and questionnaires. This proposal also includes an investigation of the ability of longitudinal brain-computer interface (BCI) multifocal steady-state visual-evoked potentials (mfSSVEP) parameters in detecting glaucoma progression. We hypothesize that BCI mfSSVEP data will be able to successfully detect progression and measure rates of change, as compared to functional assessment by standard automated perimetry (SAP) and structural assessment by optical coherence tomography.

The purpose of this study is to evaluate the nGoggle's accuracy and repeatability in detecting visual function loss. In addition, the ability to stage glaucomatous damage and investigate the relationship between nGoggle metrics and neural damage in glaucoma will also be evaluated. Longitudinal study, including 200 patients with: glaucoma, suspected of having glaucoma, nonglaucomatous optic neuropathies, AMD, retinal degenerations, other diseases involving the visual pathways, besides healthy controls. Subjects will perform standard ophthalmological exams, and the following research tests: electroencephalogram, visual evoked potentials, and questionnaires. Statistical analyses will be performed by the PI using the software Stata, MATLAB, and MPLUS. Risks are low, consisting of some discomfort, fatigue, dizziness or motion sickness.

This study "A Long-Term Follow-Up Study in Subjects Who Received an Adeno-Associated Viral Vector Serotype 2 Containing the Multi-Characteristic Opsin Gene (vMCO-I) Administered Via Intravitreal Injection" is an observational study and will be conducted following Good Clinical Practice (GCP)- International Conference on Harmonization (ICH) guidelines. Eligible subjects satisfying all inclusion and none of the exclusion criteria will be enrolled. All subject who completed the parent clinical study (NSCT/CT/18/01) will undergo safety and efficacy assessments up to 5 years post study drug injection

The objective of the study is to collect adaptive optics (AO) retinal images from human subjects with outer retinal diseases (diseases of the outer retina including photoreceptor, retinal pigment epithelium (RPE), basement membrane or choroidal pathologies) to develop new diagnostic methods, biomarkers, and clinical endpoints.

Background: Retinal diseases cause the loss of rod and cone photoreceptors. Symptoms include vision loss and night blindness. Researchers want to learn about rod and cone function in healthy people and people with retinal disease. They want to know if how well a person sees in the dark can test the severity of retinal disease. Objectives: To find out if how well a person sees in the dark can test the severity of retinal disease. To find out if this can help detect retinal disease and track its changes. Eligibility: People ages 5 and older with: Retinal disease OR 20/20 vision or better with or without correction in at least one eye Design: Participants will be screened with medical and eye history and eye exam. Those with retinal disease will also have: Eye imaging: Drops dilate the eye and pictures are taken of it. Visual field testing: Participants look into a bowl and press a button when they see light. Electroretinogram (ERG): An electrode is taped to the forehead. Participants sit in the dark with their eyes patched for 30 minutes. Then they get numbing drops and contact lenses. Participants watch lights while retina signals are recorded. Visit 1 will be 3-8 hours. Participants will have up to 6 more visits over 6-12 months. Visits include: Eye exam and imaging Time course of dark adaptation: Participants view a background light for 5 minutes then push a button when they see colored light. Dark adapted sensitivity: Participants sit in the dark for 45 minutes. They push a button when they see colored light. For participants with retinal disease, ERG and visual field testing

This study aims to systematically assess the retest reliability and ability to detect a change of new visual function tests and ophthalmological imaging methods for observing the natural course of pseudoxanthoma elasticum (PXE).

Background: - Best Vitelliform Dystrophy (Best disease), Late-Onset Retinal Degeneration (L-ORD), and Age-Related Macular Degeneration (AMD) all affect the retina, the light sensing area at the back of the eye. Doctors cannot safely obtain retinal cells to study these diseases. However, cells collected from hair follicles, skin, and blood can be used for research. Researchers want to collect cells from people with Best disease, L-ORD, and AMD, and compare their cells with those of healthy volunteers. Objectives: - To collect hair, skin, and blood samples to study three eye diseases that affect the retina: Best disease, L-ORD, and AMD. Eligibility: Individuals affected with ocular condition is one year of age or older. Individuals affected with Best disease, L-ORD, or AMD is 18 years of age or older. Unaffected individuals are seven years of age or older. Design: The study requires one visit to the National Eye Institute. Participants will be screened with a medical and eye disease history. They will also have an eye exam. Participants will provide a hair sample, a blood sample, and a skin biopsy. The hair will be collected from the back of the head, and the skin will be collected from the inside of the upper arm.

This is an international, multicenter study with two components: Registry A standardized genetic screening and a prospective, standardized, cross-sectional clinical data collection Enrollment is open to all genes on the RD Rare Gene List Natural History Study A prospective, standardized, longitudinal Natural History Study Enrollment opens gene-by-gene, based on funding and within-gene Registry enrollment The study objectives are as follows. Registry Objectives Genotype Characterization Cross-Sectional Phenotype Characterization (within gene) Establish a Link to My Retina Tracker Registry (MRTR) Ancillary Exploratory Studies - Pooling of Genes Natural History Study Objectives Natural History (within gene) Structure-Function Relationship (within gene) Risk Factors for Progression (within gene) Ancillary Exploratory Studies - Pooling of Genes