The multifocal electroretinography in age-related macular degeneration
- VernacularTitle:老年性黄斑变性的多焦视网膜电图改变
- Author:
Shizhou HUANG
;
Dezheng WU
;
Futian JIANG
- Publication Type:Journal Article
- Keywords:
Macular degeneration;
Electroretinography;
Retinal perforations
- From:
Chinese Journal of Ocular Fundus Diseases
2000;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Purpose To measure and compare the difference of multifocal electroretinogram in normal subjects and patients with age related macular degeneration. Methods Seventeen cases(20 eyes)of normal subjects,7 cases(10 eyes)of dry form AMD(age related macular degeneration),8 cases(8 eyes)of wet form AMD and 11 cases(11 eyes)of idiopathic macular hole(IMH)were tested with VERIS Sciences TM 4.0 made by EDI company of America.The latencies and average response densities of 6 ring retinal regions in normal subjects were compared with those in various types of age related maculopathies. Results The N 1 and P 1 wave latencies of all 6 rings in wet form AMD and the N 1 wave latencies of 3～6 rings in dry form AMD were delayed statistically.The N 1 and P 1 wave average response densities of 1～4 rings in and the P 1 wave average response densities of 1～6 rings wet form AMD and the N 1 wave average response densities of 1～5 and the P 1 wave average response densties of 1～6 rings in dry form AMD were decreased statistically.The N 1 and P 1 wave average response densities of 1～2 and the P 1wave average response densities of 1～3 rings were decrease statistically in IMH. Conclusion Multifocal electroretinogram can be used to quantitate the visual function of the affected location in age related macular degeneration.
