Manifest vs. Online Refraction Evaluation, clinical validation of online refraction<br>

Completed

• Conditions: ametropia; refractive error; 10047518

• Registration Number: NL-OMON47922
• Lead Sponsor: niversitair Medisch Centrum Utrecht

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Last Update Posted: 28 February 2024

Recruitment & Eligibility

• Status: Completed
• Sex: Not specified
• Target Recruitment: 150

Inclusion Criteria

Age: 18-40 years
Master the Dutch language
Capable to perform the tests adequately.

Exclusion Criteria

No informed consent
Diabetes
High hypermetropia/myopia
Mental incompetence

Study & Design

• Study Type: Observational non invasive
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>- Refractive outcomes<br /><br>Values of the sphere, cylinder and axis components, obtained by the following<br /><br>tests: 1: automatic, 2: manifest and 3: online (Easee). These are converted<br /><br>into vectors by Fourier analysis.</p><br>

Secondary Outcome Measures

Name	Time	Method
<p>- Visual acuity (converted into LogMAR values for statistical analysis)<br /><br>- Gender (men/women)<br /><br>- Telemetry (duration of the test in minutes)<br /><br>- Age (in years)<br /><br>- Degree of ametropia (in diopters)</p><br>