The effect of bifocals in children with Down Syndrome

• Conditions: taakgerichtheidsproblematiek; accommodation deficit; 10047518; blurred vision at near

• Registration Number: NL-OMON40936
• Lead Sponsor: niversitair Medisch Centrum Sint Radboud

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Last Update Posted: 23 April 2024

Recruitment & Eligibility

• Status: Pending
• Sex: Not specified
• Target Recruitment: 160

Inclusion Criteria

1. Diagnosed with DS
2. Accommodation lag >0.5D for children with DS <12 years
and >0.75D for children older than age 12 or
Visual acuity at near is worse than at distance and >0.1
3. Age range 2-14 years
4. Has not worn or does not wear bifocals

Exclusion Criteria

• Other significant eye diseases, such as keratoconus, cataract or high myopia (>S-6.00).
• Diagnoses of any neurological, sensory or behavioural disorders such as autism, microcephaly or significant hearing loss.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>• Improvement of near vision </p><br>

Secondary Outcome Measures

Name	Time	Method
<p>• Improvement of visual-acuity at distance<br /><br>• Improvement in accuracy of accommodation response<br /><br>• Prevalence (prevention) of strabismus<br /><br>• Differential effect of bifocals on task readiness </p><br>