Retinal Disease, Vision Disorders, Visual Impairment
Conditions
Keywords
Electroretinogram, Visual evoked potential
Brief summary
To assess repeatability of electroretinogram and visual evoked potential in clinical practice
Detailed description
To assess repeatability of electroretinogram in evaluation of retinal function and visual evoked potential in evaluation of visual pathway in clinical practice.
Interventions
DIAGNOSTIC_TESTElectroretinogram (ERG)
Applying electrodes to assess retinal function
DIAGNOSTIC_TESTVisual evoked potential (VEP)
Applying electrodes to assess visual pathway function
Sponsors
Benha University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
Yes
Inclusion criteria
* Normal subjects visit banha university hospital seeking regular checkup and subjects asked for ERG and VEP as a pre-occupational examination.
Exclusion criteria
* Patients previously diagnosed with any retinal disease or visual pathway disease that may affect ERG and VEP tests.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Repeatability of ERG amplitude. | Changes from baseline measurements and at one week. | ERG amplitude measured in nano volt (nV). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Repeatability of ERG latency. | Changes from baseline measurements and at one week. | Latency of ERG measured by millisecond (msec). |
Other
| Measure | Time frame | Description |
|---|---|---|
| Repeatability of VEP amplitude. | Changes from baseline measurements and at one week. | VEP amplitude measured in nano volt (nV). |
| Repeatability of VEP latency. | Changes from baseline measurements and at one week. | Latency of VEP measured by millisecond (msec). |
Countries
Egypt
Contacts
Primary ContactAhmed Abdelshafy, MD
Outcome results
None listed