myopia
Conditions
Interventions
control group:near work at different harmful distances+fMRI
experimental group1-mild myopia:near work at different harmful distances+fMRI
experimental group2-moderate myopia:near work at different harmful distances+fMRI
experimental group3-severe myopia:near work at different harmful distances+fMRI
Sponsors
Zhengzhou University People's Hospital, Henan Provincial People’s Hospital, People's Hospital of Henan University
Eligibility
Sex/Gender
All
Age
18 Years to 25 Years
Inclusion criteria
Inclusion criteria: 1. for emmetropia: (1) uncorrected visual acuity of 20/20 or above (did not exceed 24/20) in each eye; (2) right handed; (3) Aged 18-25 years old; 2. for myopia: (1) myopia in different degrees; (2) right handed; (3) Aged 18-25 years old.
Exclusion criteria
Exclusion criteria: (1) ocular diseases or history of eye surgery; (2) major neurological or psychiatric disorders; (3) exposure to medication likely to influence cerebral function or blood flow within 1 month of testing; (4) history of head trauma; (5) drug or alcohol abuse; (6) MRI contraindication.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| the intensity and extent of occipital visual cortex activity; | — |
Countries
China
Contacts
Public ContactDapeng Shi
Zhengzhou University People's Hospital, Henan Provincial People’s Hospital, People's Hospital of He'nan University
Outcome results
None listed