Repeatability of Electroretinogram and Visual Evoked Potential
Not Applicable
- Conditions
- Retinal DiseaseVision DisordersVisual Impairment
- Interventions
- Diagnostic Test: Electroretinogram (ERG)Diagnostic Test: Visual evoked potential (VEP)
- Registration Number
- NCT05334875
- Lead Sponsor
- Benha University
- 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.
Recruitment & Eligibility
- Status
- UNKNOWN
- Sex
- All
- Target Recruitment
- 250
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.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Electroretinogram test (ERG) Electroretinogram (ERG) ERG test will be done for each subject twice and compare the results to assess repeatability of the test. Visual evoked potential test (VEP) Visual evoked potential (VEP) VEP test will be done for each subject twice and compare the results to assess repeatability of the test.
- Primary Outcome Measures
Name Time Method Repeatability of ERG amplitude. Changes from baseline measurements and at one week. ERG amplitude measured in nano volt (nV).
- Secondary Outcome Measures
Name Time Method Repeatability of ERG latency. Changes from baseline measurements and at one week. Latency of ERG measured by millisecond (msec).
Trial Locations
- Locations (1)
Ahmed Abdelshafy Tabl
🇪🇬Banhā, Benha, Egypt