Attention deficit hyperactivity disorder (ADHD)
Conditions
Interventions
ADHD children:Ophthalmic examination including OCT-A imaging
Normal children:Ophthalmic examination including OCT-A imaging
Sponsors
Research Office, Health Bureau
Eligibility
Sex/Gender
All
Age
6 Years to 8 Years
Inclusion criteria
Inclusion criteria: - Children with ADHD history or previously diagnosed as ADHD in hospitals will be included. - Agree and/or have parent(s) and/or guardian(s) who agree to join the study by signing written assent and/or informed consent or had parent(s) and/or guardian(s) who signed a former written informed consent which stated their acknowledgement of the use of the collected tissues for future studies
Exclusion criteria
Exclusion criteria: Children with any ocular diseases except refractive error
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Changes of RNFL, GCL, retinal vasculature (CRAE and CRVE), retinal microvasculature (FAZ area, FAZ circularity, VD, VDI and FD), choroidal thickness, and choroidal vasculature (CVI) between ADHD, severity of ADHD and normal children;Difference of RNFL, GCL, retinal vasculature (CRAE and CRVE), retinal microvasculature (FAZ area, FAZ circularity, VD, VDI and FD), choroidal thickness, and choroidal vasculature (CVI) for ADHD prognosis (between recovered ADHD children/ADHD with good treatment effect); | — |
Secondary
| Measure | Time frame |
|---|---|
| The above difference between ADHD and normal children at baseline;The above difference between children of different severity of ADHD and normal children at baseline;Possible cut-off of these ocular imaging parameters to identify the high risk of ADHD below or within a special point of these imaging parameters; | — |
Countries
Hong Kong
Contacts
Public ContactDr ZHANG Xiujuan
Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong
Outcome results
None listed