Long-term effects of the crowding training and transfer to untrained tasks

Long-term effects of the crowding training and transfer to untrained tasks - Long-term effects crowding training

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

NL-OMON

Registry ID

NL-OMON42964

Enrollment

Registered

2017-01-09

Start date

2017-04-20

Completion date

Unknown

Last updated

2024-06-11

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

Conditions

low vision

Interventions

The *crowding training* is an evidence-based intervention that has been implemented at Bartiméus and Royal Dutch Visio (also see project number 2010/037). The *crowding training* is a behavioural tr

Eligibility

Age

2 Years to 11 Years

Inclusion criteria

Inclusion criteria: - Age 4-8 years; - Visual acuity >=20/400 and

Exclusion criteria

Exclusion criteria: - motor or mental impairment - visual acuity 20/40 - the presence of a developmental disorder

Design outcomes

Primary

Measure	Time frame
The main study parameter is visual acuity. We measure uncrowded and crowded visual acuities by the conventional manner and by using a computerized test (which is in line with recently developed guidelines for improved vision screening: [1]). Crowding intensity can be calculated by subtracting the uncrowded acuity (logMAR) from the crowded acuity (logMAR).	—

Secondary

Measure	Time frame
Secondary study parameters are fine motor skills (measured with the Beery VMI) and reading skills (measured with the Radner or DMT).	—

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)