Prevalence of amblyopia, strabismus and refractive errors amongst children of the 7th grade and influence of spectacle correction of hypermetropia on reading ability

Prevalence of amblyopia, strabismus and refractive errors amongst children of the 7th grade and influence of spectacle correction of hypermetropia on reading ability - Prevalence of visual disorders in the 7th grade

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

NL-OMON

Registry ID

NL-OMON35425

Enrollment

3000

Registered

2010-10-22

Start date

2010-11-15

Completion date

Unknown

Last updated

2024-05-06

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

Conditions

refractive errors. Spectacle corrections

Interventions

For the objective (4) glasses will be provided to those subjects who have relevant hyperopia, on a random basis. The effect of these glasses on the reading capacity will be investigated by repeating

Eligibility

Age

2 Years to 11 Years

Inclusion criteria

Inclusion criteria: age

Exclusion criteria

Exclusion criteria: none

Design outcomes

Primary

Measure	Time frame
1. The prevalence of visual abnormalities, in particular amblyopia, strabismus and refractive errors. 2. The percentage of abnormalities that were adequately detected by vision screening in the VOV protocol. 3. The outcome of treatment / management of these abnormalities 4. The effect of hyperopic spectacle correction on reading capacity.	—

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)