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OpenTrials
Active, Not Recruiting

NCT Number: NCT05650190

Spectacle Lens Visual Acuity Assessments Study

This is a two-arm parallel group, non-dispensing study. Participants will be existing active CYPRESS Extension (CPRO-1802-002) subjects. Subjects will undergo additional visual performance assessments.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

Key information

Conditions

Myopia Eye Diseases Juvenile Myopia Myopia Progression Refractive Errors

Age range

9 year–14 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Sabal Eye Care, Longwood, Florida, United States

Loading trial locations.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Existing subject from the CYPRESS Extension study (CPRO-1802-002)
  • Ability to comply with study assessments
  • The subject's parent(s) or legal guardian(s) must read, understand and sign the Statement of Informed Consent and receive a fully executed coy of the form

Exclusion criteria

  • Any current ocular infection, inflammation or irritation likely to affect vision

Treatment and study plan

Novel spectacle lens design

Device

Use of single vision, impact resistant spectacle lenses may reduce the rate of progression of juvenile myopia

Spectacle lenses

Device

Single vision, impact resistant spectacle lenses

Primary outcomes

  1. Visual Acuity

    Time frame: 15 minutes

    Reading Speed (maximum words per minute)

Secondary outcomes

  1. Near Visual Acuity with Glare

    Time frame: 15 minutes

    Mean and Standard Deviation at 15 minutes (short duration test)

Sponsors and collaborators

Lead sponsor

SightGlass Vision, Inc.

Industry

Registry information

Official study title

Spectacle Lenses Visual Acuity Assessments Study

Acronym: CEDAR

Important dates

Study start
2022
Primary completion
2023
Study completion
2026
First posted
Dec 14, 2022
Registry last updated
May 5, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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