Multifocal Electroretinography in Retinitis Pigmentosa With Non-recordable Full-field Electroretinography
Journal of the Korean Ophthalmological Society
; : 1817-1823, 2009.
Article
em Ko
| WPRIM
| ID: wpr-96512
Biblioteca responsável:
WPRO
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.
Palavras-chave
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Retinaldeído
/
Retinite
/
Acuidade Visual
/
Retinose Pigmentar
/
Estudos Retrospectivos
/
Eletrorretinografia
/
Olho
Tipo de estudo:
Observational_studies
Limite:
Humans
Idioma:
Ko
Revista:
Journal of the Korean Ophthalmological Society
Ano de publicação:
2009
Tipo de documento:
Article