Related Experiment Video
Updated: Jul 11, 2026
16:49
Multifocal Electroretinograms
Published on: December 4, 2011
[Verification of multifocal electroretinogram Veris III system for clinical problems].
Masaru Yoshii1, Eiichiro Nagasaka, Kenji Yanashima
1Eye Clinic, National Rehabilitation Center for Persons with Disabilities, Saitama, Japan.
Nippon Ganka Gakkai Zasshi
|October 3, 2007
Summary
The Veris III system is useful for multifocal electroretinograms (mfERG) recording, with no clinical issues found in its core functions. However, attention to cathode ray tube (CRT) monitor stimulation timing is crucial for accurate results.
Area of Science:
- Ophthalmology
- Neuroscience
- Biomedical Engineering
Background:
- The Veris III system is utilized for multifocal electroretinogram (mfERG) recording.
- Concerns exist regarding its clinical application and potential issues.
Purpose of the Study:
- To verify the clinical utility of the Veris III system for mfERG recording.
- To identify and address any reported problems in its application.
Main Methods:
- A test wave was inputted into the Veris III system.
- Data were analyzed using Veris Science software.
- Evaluated overlapping, spatial averaging, combination procedures, and CRT monitor emission properties.
Main Results:
- No overlapping was detected under standard stimulus conditions.
- Spatial averaging and combination procedures yielded data consistent with theoretical calculations.
- CRT monitor emission exhibited a steep, short duration of 85 microseconds.
Conclusions:
- The M-sequence program, spatial averaging, and combination procedures showed no clinical problems.
- Careful configuration of CRT pattern stimulation is necessary due to its rapid emission properties.
