NCT01308307

Is Non-cycloplegic Photorefraction Applicable for Screening Refractive Risk Factors of Amblyopia?

• Status: Completed
• Phase: Phase 2
• Study type: Interventional
• Enrollment: 185 (actual)
• Sponsor: Shahid Beheshti University of Medical Sciences · Academic / Other
• Sex: All
• Age: 1 Year – 14 Years
• Healthy volunteers: Not accepted

Summary

Purpose: : This study was performed to compare the accuracy of non-cycloplegic photorefraction with cycloplegic refraction in detection of refractive amblyopia risk factors and determine some corresponding beneficial cut points. Method: In this diagnostic accuracy study, right eyes of 185 children (1 to 14 years) underwent first non-cycloplegic photorefraction (with PlusOptix SO4 photoscreener) and then cycloplegic refraction from October 2009 to August 2010. Based on the cycloplegic refraction results, hyperopia (≥+3.5D), myopia (≥-3D), astigmatism (≥1.5D), and anisometropia (≥1.5D) were set as criteria based on AAPOS guidelines. The difference in detection of refractive amblyopia risk factors between the two methods was the main outcome measure.

Conditions

• Amblyopia

Interventions

Type	Name	Description
DEVICE	photorefraction	photorefraction is a name of device.

Timeline

• Start date: 2009-10-01
• Completion: 2010-08-01
• First posted: 2011-03-04
• Last updated: 2011-03-08

Locations

1 site across 1 country: Iran