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NCT05294978RecruitingAccepts Healthy Volunteers

EyeConic: Qualification for Cone-Optogenetics

Institute of Molecular and Clinical Ophthalmology Basel

Start Date

7/1/2021

Completion Date

12/1/2026

Summary

This study aims to prepare for the first-in-human clinical trial of cone optogenetics vision restoration. As a first step, this worldwide multicenter ocular imaging study (EyeConic Study) is performed to identify eligible patients.

Detailed Description

In a subset of patients with inherited retinal dystrophies (IRDs), cones lose their light-sensitive outer segments but remain alive in a dormant stage. This creates an opportunity to resensitize them through targeted optogenetic tools. However, the true proportion of low vision patients harboring dormant, non-functional cones, is currently unknown. The worldwide multicenter retrospective study (EyeConic) aims to estimate the proportion of low vision patients with remaining cone cell bodies for the first time.

Eligibility Criteria

Age Range: No minimum to No maximum

Inclusion Criteria (patients): * Diagnosis of generalized IRD * Low vision as defined as visual acuity worse or equal to 0.05 (or 20/400) in the study eye * Availability of macular optical coherence tomography (OCT) Inclusion Criteria (controls): * Normal ophthalmic findings * Availability of macular optical coherence tomography (OCT) Exclusion Criteria (all): * Other eye diseases with a significant effect on vision or retinal structure * Extraocular disease affecting retinal structure such as neurodegenerative diseases

Interventions

DIAGNOSTIC_TEST

Optical coherence tomography (OCT)

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Conditions

Retinal Dystrophies

Locations

University of California San Francisco, Department of Ophthalmology

San Francisco, California 94158

United States

Bascom Palmer Eye Institute

Miami, Florida 33136

United States

University of Pittsburgh, Department of Ophthalmology

Pittsburgh, Pennsylvania 15213

United States

Beijing Institute of Ophthalmology

Beijing,

China

Universitätsklinikum Tübingen Augenklinik

Tübingen,

Germany

Semmelweis University, Department of Ophthalmology

Budapest,

Hungary

Oculista Ospedale Parma

Parma,

Italy

University Hospital Basel, Eye Clinic

Basel, 4031

Switzerland

Moorfields Eye Hospital

London,

United Kingdom