Tolerability of a Novel Spectacle Design With Reduced Peripheral Contrast

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03761758

Acronym

WALNUT

Enrollment

Registered

2018-12-03

Start date

2018-05-01

Completion date

2018-07-19

Last updated

2018-12-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Myopia

Brief summary

Prospective, randomized, subject-masked 3-arm clinical study to assess the pediatric acceptability across three iterations of a novel spectacle lens design.

Detailed description

This feasibility study was conducted to assess the performance of three experimental spectacle lens designs (spectacle lenses) in children between 6 and 9 years of age with myopia.

Interventions

DEVICESpectacle lenses

Spectacle lenses with clear central apertures

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

DEVICE_FEASIBILITY

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Age

6 Years to 12 Years

Healthy volunteers

Yes

Inclusion criteria

* Ages between 6 and 12 years * Myopia between -1.00 and -4.00 D

Exclusion criteria

* Participating in any clinical or other research study * Contact lens wearer

Design outcomes

Primary

Measure	Time frame	Description
Distance Visual Acuity	2 weeks	Measurement of best corrected distance visual acuity
Contrast Sensitivity	2 weeks	Measurement of contrast sensitivity
Subjective Responses	2 weeks	Assessment of subject responses related to wear time of spectacles

Countries

Canada

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026