Accommodation Spasm, Children, Myopia
Conditions
Brief summary
This study evaluates the effect of virtual reality and accommodation relax technique on controlling onset and development of myopia in school-aged children. Half of the children will receive head-mounted video display which shows video with virtual reality and accommodation relax technique in combination, while the other half will receive no intervention.
Interventions
DEVICEVirtual reality and accommodation relax techniques in combination
The children will be given head-mounted video display to watch video at break of classes, 40 minutes per day in total. The video will be shown by virtual reality and accommodation relax techniques in combination.
Sponsors
Beijing Tongren Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
6 Years to 9 Years
Healthy volunteers
No
Inclusion criteria
* Best corrected visual acuity \>=20/20 for each eye; * Astigmastism less than 1.5 D; * Anisometropia less than 1.0D; * No other ocular or systematic diseases;
Exclusion criteria
* Can not endure virtual reality video; * Can not cooperate with ocular examinations; * Receiving other interventions for controlling myopia;
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Myopia progression | One year | The change in spherical equivalent |
| Axial elongation | One year | Chnage in axial length |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Accommodative lag | One week and One month | Difference between accommodative demand and accommodative response measured by an open-field autorefractor (WAM-5500, Grand Seiko Co Ltd, Hiroshima, Japan) |
Countries
China
Outcome results
None listed