View clinical trials related to Blindness.
Filter by:The aim of the offered project is to investigate the influence of protanopia (red blindness) or protanomaly (red vision weakness) on the recognizability of red brake lights with the help of a test person study. From this, estimates of the influence of protanopia or protanomaly on driving ability are to be derived. If a relevant influence can be demonstrated in the study, recommendations for action for the legislator will be made. Translated with www.DeepL.com/Translator
This is a search strategy for determining the prevalence of ocular complications in inflammatory rheumatic diseases for the purposes of a meta analysis.
the objectives of the study is to Evaluate the effectiveness of "The Interfaces Program" to promote person's components, performance and improving the work environment of people with disabilities.
A prospective natural history study with systematic assessments and uniform follow-up to provide a high-quality dataset for assisting in the design of future clinical treatment trials involving patients with CEP290-related retinal degeneration caused by the common intron 26 mutation.
Purpose: To assess the feasibility of a surgical technique and present the preliminary safety results of a new glaucoma device devoid of a tube in painful blind eyes. Methods: Fifteen end-stage glaucomatous eyes without light perception vision were treated with a novel laminar drainage implant. Intraocular pressure was measured preoperatively and up to 24 months after surgery using a Goldmann applanation tonometer. A scale ranging from 0 to 10 was used to evaluate ocular pain. Conjunctival hyperemia, discharge, erosion or retraction, aqueous humor leakage, corneal edema, hyphema, anterior chamber cells and depth, dislocation of the implant, and filtering bleb height were assessed by slit-lamp biomicroscopy. Anterior segment optical coherence tomography was also assessed.
The purpose of this study is to evaluate the safety and tolerability of QR-110 administered via intravitreal injection in subjects with LCA due to the CEP290 p.Cys998X mutation.
This study evaluates a novel collision warning device to help people with severe vision impairment or blindness avoid collisions with obstacles. The main hypothesis to be tested is that the device reduces the number of collisions with obstacles in everyday activities.
International, multicenter, observational, longitudinal study to identify biomarker/s for Duchenne Muscular Dystropy (DMD) and to explore the clinical robustness, specificity, and long-term variability of these biomarker/s.
The main objectives of this study are: 1. Improve genetic counseling by establishment of prevalences of each of genetic subtypes within a expanded population of patients with LCA taking into account ethnicity of families. 2. Confirm, refine or modify the genotype-phenotype correlations. 3. Edit important recommendations for: - The clinical and paraclinical exploration of a new patient based on genotype, especially for extraocular explorations, to book at certain genetic subtypes - Prenatal care of a couple. - Directing families to a therapeutic protocol in progress or in development. 4. Individualize a panel of families without a mutation in the known genes and identify new genes responsible.
Reduced quality of vision and glare in twilight or night are frequently mentioned complaints within the optometric examination. A reason for these problems could be a myopic refractive shift in dark light conditions, commonly known as night myopia or twilight myopia. The aim of this study was to investigate whether quality of vision in twilight or night could be improved by a spectacle correction optimized for mesopic light conditions. Moreover, objective refraction in large pupils measured by aberrometry was compared to subjective mesopic refraction.