Search Results Within Category "Vision & Eyes"
Visual Perception in Visual Snow Syndrome
This study seeks to understand visual perception in people with Visual Snow Syndrome and how this relates to brain function.
Global Patient Registry of Inherited Retinal Diseases
The purpose of this research study is to collect timely and relevant data that will support the evolving research needs of the Inherited Retinal Disease community (IRD), in order to provide insights that can be used to improve patient management, and to inform development of future treatments. No visits, assessments, or procedures are mandated, and follow-up will be captured as part of your standard of care. The planned length of registry is of 8 years with a potential to extend the duration as needs evolve.
• at least 3 years old
• documented genetic diagnosis of X-linked retinitis pigmentosa (XLRP) or Achromatopsia (ACHM) with any signs or symptoms of disease
• Caregiver participants must be at least 18 years old and identified by the participant as the primary care giver
• received a treatment in an Inherited Retinal Disease (IRD) related interventional trial, or is being screened for an IIRD-related interventional trial
• Caregiver participant has an IRD and has visual impairment
A Randomized, Multicenter, Double-Masked, Vehicle-Controlled Phase 2/3 Study to Evaluate the Safety and Efficacy of NEXAGON? (Lufepirsen Ophthalmic Gel) in Subjects with Persistent Corneal Epithelial Defects (NEXPEDE-1) (NEXPEDE-1)
The clear layer at the front of the eye that covers the pupil and iris (colored part of the eye) is called the “cornea”. When the cornea is damaged, it normally heals within a few days but it may take up to 2 weeks depending on the size and depth of the defect (wound). Some corneal defects heal much slower than expected. A defect in the cornea that fails to heal within the normal time of 2 weeks despite using the best available medicines and procedures, is known as Persistent Corneal Epithelial Defect (or PCED for short). The purpose of this research study is to evaluate the safety, tolerability, and effectiveness (risks and benefits) of of NEXAGON ophthalmic gel for the treatment of PCEDs.
• at least 2 years old
• diagnosis of Persistent Corneal Epithelial Defect (PCED) for at least 2 weeks that hasn't responded to one or more conventional non-surgical treatments
• active eye infection that requires treatment
• additional eye conditions that exclude study participation (study staff will review)
Neural mechanisms of early visual dysfunction in psychosis
The purpose of this study is to look at symptoms, thoughts, and behaviors related to the way a person sees the world. This is called visual perception. This study will also look at brain function. We will study these things in people with and without psychosis. People with psychosis see the world differently than others. For example, they may experience hallucinations. We are interested in understanding how differences in the way people see the world relate to brain circuits. This project will use visual and behavioral experiments, EEG, and Magnetic Resonance Imaging (MRI) to look at how visual perception is different in people with and without psychosis. This research study has three visits lasting 2-4 hours each. We expect that these visits will take place over 2-3 months, depending on your availability and preferences.
• 18-60 years old
• normal or corrected-to-normal vision
• current diagnosis of schizophrenia or schizoaffective disorder
• claustrophobia
• current substance dependence (other than nicotine)
• any vision problem (e.g. strabismus/crossed eyes, lazy eye, color blindness)
• current or past diagnosis of bipolar I disorder