Argus II Retinal Prosthesis System - Better Vision RP Study

Status Withdrawn

Clinical Trial Summary

The study is conducted to evaluate the safety and benefit of the Argus II System in a selected patient population with advanced Retinitis Pigmentosa who have a measurable central residual visual field smaller than or equal to 5 degrees radius.

Clinical Trial Description

The Argus II System is intended for use in blind patients with severe to profound retinitis pigmentosa with at least some light perception in the eye to be implanted.

The majority of RP patients still have some central vision even at a very late stage of the disease. This extremely restricted visual field is, however, highly disabling in daily life. The primary objective of this study is to evaluate the safety and benefit of the Argus II System in RP patients characterized as late stage with a central residual visual field smaller than or equal to 5 degrees radius . The electrode array will be placed in a para- to peri foveal location adjacent to the subject's residual visual field, thus increasing the total retinal area receptive to light.

Safety data will be monitored to ensure continued acceptability of risks to study subjects and visual function will be measured to evaluate the effectiveness of the system in this "better vision" RP population. In addition, effects on functional vision and quality of life will be assessed through the Functional Low-Vision Observer Rated Assessment (FLORA) and the National Eye Institute Visual Function Questionnaire (NEI-VFQ-25). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03418116
Study type	Interventional
Source	Second Sight Medical Products
Contact
Status	Withdrawn
Phase	N/A
Start date	November 1, 2018
Completion date	November 2021

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