An observational study in Myopia, sponsored by The Hong Kong Polytechnic University. Completed at 1 site in China. Open to participants aged 6 Years to 10 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-06-22.
Sponsored by The Hong Kong Polytechnic University · Observational
The aim of the stuy is to investigate the effects of the adoption of a curriculum with electronic devices for teaching materials and textbooks in Hong Kong schoolchildren on their changes in refractive error and visual function.
With the blooming of information technology and electronic engineering in recent years, e-books or tablet computers have been introduced at some local primary and secondary schools and have been provided for their students during studying at school and at home. Parents and teachers' utmost concern are adverse effects on eye-sight of children, especially the higher progression rate in myopia and the visual discomfort which may be caused by the e-book technology.
This is a prospective cohort study to determine if implementation of electronic devices for teaching promotes myopia development and progression and affects visual function in primary schoolchildren.
The schools will introduce e-books to their students in some classes. Signed informed consent letters from parents will be obtained prior to subject recruitment and data collection. Eye examination and data collection will be conducted in primary school campus. The children from two local primary schools in same grade will be assigned into two groups by their schools. One group will use e-books (e-book group) to study course materials assigned by their teachers whereas another group will use ordinary textbooks (control group). Their refractive errors, axial length (AXL) and binocular functions will be measured and monitored at six-month intervals for a maximum of 2 years.
984 studies on the registry are indexed under Myopia; 209 are open to participants now.
This study's enrollment of 201 is above the median of 150 across 173 observational studies indexed under Myopia.
Browse Myopia studies →The Hong Kong Polytechnic University is the lead sponsor of 659 studies on the registry; 250 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Primary schoolchildren in Hong Kong
Exclusion Criteria:
study the course materials by using e-book
Changes in refractive errors
cycloplegic autorefraction
Time frame: 2 years
changes in axial length
measured by the Zeiss IOLMaster after cycloplegia
Time frame: 2 years
Keratometric changes
Time frame: 2 years
Phoria at distance and near
Howell phoria cards
Time frame: every 6-month
Plan to share: No
No publications or documents are linked to this record.
This study is completed, as verified in Jun 2016. You cannot join it, but the record below documents what was studied.
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The Hong Kong Polytechnic University