Multifocal Electroretinogram in Normal Egyptian Population

Normal Multifocal Electroretinogram in Egyptian Population.

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05323032

Enrollment

100

Registered

2022-04-12

Start date

2022-03-22

Completion date

2022-12-30

Last updated

2022-07-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Population, Retinal Disease

Keywords

normal, electroretinogram, delta population

Brief summary

Studying normal subjects to create unique normal database for multifocal electroretinogram (mf-ERG) in specific population.

Detailed description

Normal parameters for electroretinogram (ERG) is important in studying specific population, studying normal subjects is important to create specific normal database for each population. This will help in accurate differentiation for various ocular diseases and in research trials.

Interventions

DEVICEMultifocal electroretinogram (mf-ERG) by electroretinogram device

Measurement of mf-ERG parameters with 61 stimulus elements to asses amplitude of waves in nano volt/degree square (nv/deg2) and latency in millisecond (msec) as measured by electroretinogram device.

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

DIAGNOSTIC

Masking

NONE

Intervention model description

Multifocal electroretinogram in normal population

Eligibility

Sex/Gender

ALL

Age

18 Years to 60 Years

Healthy volunteers

Yes

Inclusion criteria

* Normal subjects seeking regular ophthalmic check-up at banha university hospital.

Exclusion criteria

* Any retinal diseases that may affects mf-ERG waves. * Subjects with best corrected visual acuity less than 0.7 in decimal form at time of examination. * Refractive errors more than 0.5 diopter as measured by autorefractometer.

Design outcomes

Primary

Measure	Time frame	Description
Amplitude of waves in nv/deg2	immediately after mf-ERG diagnostic test for each eye.	Measurement of the amplitude of N1 and P1 waves.
Latency of waves in msec.	immediately after mf-ERG diagnostic test for each eye.	Measurement of the latency of N1 and P1 waves.

Secondary

Measure	Time frame	Description
Difference between different age groups in mf-ERG readings.	immediately after mf-ERG diagnostic test for each eye.	Statistical analysis for mf-ERG amplitude and latency in different age groups.

Countries

Egypt

Contacts

Primary ContactAhmed A Tabl, MD

ahmad4lg@gmail.com01222328766

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026