Can young visual impaired children learn to handle a magnifier?
| ISRCTN | ISRCTN84538122 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN84538122 |
| Secondary identifying numbers | N/A |
- Submission date
- 04/04/2006
- Registration date
- 04/04/2006
- Last edited
- 08/04/2021
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Eye Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Plain English summary of protocol
Not provided at time of registration
Contact information
Dr Ralf Cox
Scientific
Scientific
Bartiméus
P.O. Box 1003
Zeist
3700 BA
Netherlands
| r.cox@bartimeus.nl |
Study information
| Study design | Randomised controlled trial |
|---|---|
| Primary study design | Interventional |
| Secondary study design | Randomised controlled trial |
| Study setting(s) | Not specified |
| Study type | Treatment |
| Scientific title | Can young visual impaired children learn to handle a magnifier? |
| Study objectives | When young visual impaired children can participate in a training (game) in which a magnifier is used, they learn to handle the magnifier (fine motor skills), they learn to observe small symbols (visual behaviour) and they become interested in the world of small things and know how to visualize these things. |
| Ethics approval(s) | Ethics approval received from the local medical ethics committee |
| Health condition(s) or problem(s) studied | Visual impairment |
| Intervention | The experimental group trains with a magnifier. The control group trains without a magnifier. The training (game) is the intervention. It is given twice a week (20 minutes) for 6 weeks. The material consists of eight different patterns, each with four pathways made out of small symbols (LH), somewhat like 'ant trails'. The pathways either go horizontal, vertical or round, and they can cross each other. By following the paths with the magnifier, movements are induced in all directions. The goal of the task is to find the symbol at the end of the pathway corresponding to the symbol at the start. The size of the symbols is adjusted to each individual child's visual acuity. |
| Intervention type | Other |
| Primary outcome measure | 1. Can the training teach children to handle a magnifier? 2. Can we find a difference in performance after the training (in motor skills, symbol discrimination, visual behaviour)? Preliminary analysis (updated 15/11/2006): Preliminary analysis revealed that the 12-session training had a positive influence on childrens performance on the task. The number of correctly found end-points, attained by adequately following the corresponding path, increased for both training groups. There was however a difference in the amount of increase between the two groups. On average, the group that has trained without the magnifier performed twice as good. That is, in the post-test they found twice as much correct end-point figures as compared to the pre-test. In the group that has trained with the magnifier, this number was four times as high. Now we are studying the rich data we collected to uncover the relevant variables that determine childrens progression and the differences between the groups. In addition we are looking for a possible transfer of this progression to other domains of their development (e.g., fine-motor skills). |
| Secondary outcome measures | 1. How do young visual-impaired children work with a visual aid? 2. Can they perform the complex task of training and magnifier, and do they have a dominant hand and dominant eye? |
| Overall study start date | 01/02/2006 |
| Completion date | 01/09/2006 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Child |
| Lower age limit | 2.5 Years |
| Upper age limit | 6 Years |
| Sex | Both |
| Target number of participants | 47 |
| Total final enrolment | 33 |
| Key inclusion criteria | 1. Children, aged 2.5 to 6 years old, with visual impairment: visual acuity 0.3 or less. All children have normal development 2. Children included will have an ophthalmologic examination, an examination of their gross and fine motor skills, and an examination of their overall level of development |
| Key exclusion criteria | 1. Developmental delay 2. Impairment of motor skills 3. Prematurity |
| Date of first enrolment | 01/02/2006 |
| Date of final enrolment | 01/09/2006 |
Locations
Countries of recruitment
- Netherlands
Study participating centre
Bartiméus
Zeist
3700 BA
Netherlands
3700 BA
Netherlands
Sponsor information
Bartiméus (The Netherlands)
Not defined
Not defined
P.O. Box 1003
Zeist
3700 BA
Netherlands
"ROR" |
https://ror.org/047b7k736 |
|---|
Funders
Funder type
Research organisation
Netherlands Organisation for Health Research and Development (ZonMw), Stichting Oogfonds Nederland
No information available
Results and Publications
| Intention to publish date | |
|---|---|
| Individual participant data (IPD) Intention to share | No |
| IPD sharing plan summary | Not provided at time of registration |
| Publication and dissemination plan | Not provided at time of registration |
| IPD sharing plan |
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|---|---|---|---|---|
| Results article | 01/06/2009 | 08/04/2021 | Yes | No |
Editorial Notes
08/04/2021: Publication reference and total final enrolment added.
