Multifocal Electroretinography in Retinitis Pigmentosa With Non-recordable Full-field Electroretinography
Journal of the Korean Ophthalmological Society
;
: 1817-1823, 2009.
Article
in Korean
| WPRIM
| ID: wpr-96512
ABSTRACT
PURPOSE:
To investigate the clinical potential of multifocal electroretinography (mf-ERG) for the evaluation of residual retinal function in retinitis pigmentosa (RP).METHODS:
From a group of 41 patients with RP examined for full-field and mf-ERGs, 24 patients were selected in whom the full-field ERGs were non-detectable. Data from the mf-ERGs of this group were reviewed retrospectively. Patients were divided into two groups based on best corrected visual acuity (BCVA); Group A, with a BCVA of less than 0.5, and group B with a BCVA greater than 0.5. The amplitudes and implicit times of Ring 1 and Ring 2 among six concentric rings were measured for comparison between mf-ERG groups.RESULTS:
In the mf-ERGs, the amplitudes of Ring 1 and Ring 2 were reduced and implicit time was delayed in all 48 eyes of 24 patients in whom scotopic and photopic responses were non-detectable in full-field ERGs, whereas, there were no detectable responses in Rings 3 thru 6. There was a greater reduction in amplitude and an increased delay in implicit time in group A.CONCLUSIONS:
The mf-ERG can estimate the residual macular function in a group of patients with RP in whom the full-field ERG is non-recordable.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Retinaldehyde
/
Retinitis
/
Visual Acuity
/
Retinitis Pigmentosa
/
Retrospective Studies
/
Electroretinography
/
Eye
Type of study:
Observational study
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Ophthalmological Society
Year:
2009
Type:
Article
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