Visual fatigue
Conditions
Interventions
Test group:Visual fatigue induction
Sponsors
Tianjin Eye Hospital
Eligibility
Sex/Gender
All
Age
8 Years to 12 Years
Inclusion criteria
Inclusion criteria: 1. Age range of 8-12 years old (inclusive); 2. Equivalent spherical lens degree = 1.0 at distance in the tested eye; 3. The person himself/herself or the guardian understands and agrees to take part in this clinical trial and signs the informed consent form; 4. No ocular and psychiatric diseases, no history of surgery for neurological diseases, no dominant strabismus and amblyopia.
Exclusion criteria
Exclusion criteria: 1. Subjects who may suffer from ocular diseases affecting vision or refractive error (e.g. cataracts and other lens-damaging diseases, glaucoma, macular degeneration, keratoconus, uveitis, retinal detachment, severe vitreous clouding, etc.); 2. Subjects who are not suitable for prolonged medium- to close-distance work such as halo, hyperdynamic spondylosis, ADHD, etc., and those who are accustomed to looking upwards for a closer view; 3. Subjects with dominant strabismus and amblyopia; 4. Corrected visual acuity less than 1.0; 5. Inability to use corrective lenses as required and other conditions deemed unsuitable by the investigator.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Visual Fatigue Symptoms;Flash Fusion Frequency(CFF);Amplitude of Accommodation; | — |
Secondary
| Measure | Time frame |
|---|---|
| Heterophoria;Accommodative response;Melting range; | — |
Countries
China
Contacts
Public ContactJiang Yanglin
Tianjin Eye Hospital
Outcome results
None listed