Assessing the Impact of Streetscape Exposure on Children's Perception
ConditionMyopia
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age6-18
SponsorZhongshan Ophthalmic Center, Sun Yat-sen University
About this trial
The primary objective is to determine how streetscape exposure influences children's visual perception and psychological perception. The secondary aim is to identify streetscape elements associated with both visual and psychological perception, thereby providing evidence for environmental interventions in urban planning and public health.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
None
Disqualifiers
None
Trial population
Children aged 6 to 18 suffer from myopia or emmetropia
Trial design
Design model
Case-control
Time perspective
Prospective
Treatments tested in this trial
Virtual simulation of street visual environment exposure
Other interventionTransforming real street scenes into virtual simulation environments, and recreating the visual exposure of actual street scenes in a laboratory setting through wearing VR headsets.
Treatment groups
300 Participants
are divided into 2 treatment groupsGroup A: Myopia group1 intervention
Group B: Emmetropia group1 intervention
Trial outcomes
Primary outcomes
1
Environmental defocus
The eye movement behaviors of the subjects were measured using the HTC VR helmet and the 7XINiwei aSee Studio, and then calculated by combining with the deep learning algorithm.
Time frame
First daySecondary outcomes
1
Perception evaluation
After the experiment process was completed, the Environmental Perception Questionnaire was used to measure the subjects' psychological perception of the streetscape environment, such as whether it was safe and comfortable. By comparing the pictures, the option that better matches the description is selected. The more times a picture is chosen, the safer or more comfortable it is considered.
Time frame
First dayOther outcomes
1
Intensity of physical activity
Use the modified GPAQ physical activity questionnaires. Each question has 5 options, representing scores from 0 to 5. The arithmetic mean score of all the questions represents the activity level of the child.
Time frame
First day2
Axis Length
Under natural pupils, axial length was measured with the IOL Master. One eye was occluded while the fellow eye fixated straight ahead; three readings were taken and averaged.
Time frame
First day3
Refractive demand at fixation
The eye movement behaviors of the subjects were measured using the HTC VR helmet and the 7XINiwei aSee Studio, and then calculated by combining with the deep learning algorithm.
Time frame
First day4
Visual acuity
Use the ETDRS visual acuity chart
Time frame
First daySponsors and contacts
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Source ClinicalTrials.gov