Clinical Trial

CYPRESS Efficacy and Safety Study Extension

Study acronym: CYPRESS
Active, Not Recruiting
View on ClinicalTrials.gov →
Summary
This is an open-label, controlled, multisite, two-arm parallel group clinical trial of 36-month duration to evaluate the continued safety and efficacy of SightGlass Vision Diffusion Optics Technology (DOT) Spectacles in reducing the progression of juvenile myopia.
Protocol Amendment History 6 amendments
This ClinicalTrials.gov record has been amended 6 times since 2021-06-24; most recent amendment 2026-04-29.
Status change: Recruiting → Active, Not Recruiting 2022-09-28
Status change: Not Yet Recruiting → Recruiting 2021-07-19
Trial Details
NCT Number NCT04947735
Lead Sponsor SightGlass Vision, Inc.
Conditions Juvenile Myopia, Myopia
Enrollment 200 participants
Start Date 2021-07-19
Primary Completion 2026-10-31 (estimated)
Study Completion 2026-12-31 (estimated)
Updated on ClinicalTrials.gov 2026-05-05