Scotopic multifocal visual evoked potentials
Scotopic multifocal visual evoked potentials
复制标题
暗视多焦点视觉诱发电位
DOI:
10.1016/j.clinph.2018.11.030
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发表时间:
2019
影响因子:
4.7
通讯作者:
Hoffmann MB
中科院分区:
文献类型:
--
作者:
Muranyi DS;Kramer FH;Herbik A;Hoffmann MB
ObjectiveTo investigate the scope of scotopic multifocal visual evoked potentials (mfVEPS) for the assessment of scotopic visual fields.MethodsPattern-reversal mfVEP for photopic (mfVEPP) and scotopic conditions (mfVEPS; 0.003 cd/m2) were recorded from 36 visual field locations of a circular checkerboard pattern (25° radius) in 9 participants with normal vision. MfVEPPwere recorded with a conventional central fixation cross, mfVEPSwere recorded (i) with (mfVEPS+) and (ii) without (mfVEPS−) an additional fixation aid. Latency shifts were determined using cross-correlations, mfVEP magnitudes were analysed in an eccentricity dependent manner using signal-to-noise ratios (SNRs).ResultsIn comparison to mfVEPP,mfVEPS−and mfVEPS+were delayed by 101 ms and 97 ms, respectively, and had smaller signal-to-noise-ratios. Both mfVEPSwere reduced down to noise level in the center and also severely reduced for the most peripheral stimulus eccentricity used. The visual-field-coverage for the paracentral eccentricities of mfVEPS+and mfVEPS−was 76% and 65% [4°–9°], respectively, and 79% and 66% [9°–16°].ConclusionsMfVEPSwere delayed compared to mfVEPPand demonstrated the expected central response drop-out typical for scotopic vision.SignificanceMfVEPSmay hold promise of an objective, spatially resolved visual field test which motivates testing it in patients with diseases affecting scotopic vision.
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DOI:
--
发表时间:
1998
期刊:
Investigative ophthalmology & visual science.
影响因子:
--
作者:
Hood,DC;Wladis,EJ;Shady,S;Holopigian,K;Li,J;Seiple,W
通讯作者:
Seiple,W
影响因子:
4.4
作者:
Hoffmann, Michael B.;Wolynski, Barbara;Golla, Franziska
通讯作者:
Golla, Franziska
影响因子:
4.7
作者:
M. Hoffmann;Petra S. Seufert
通讯作者:
Petra S. Seufert
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
M. Hoffmann
通讯作者:
M. Hoffmann
影响因子:
1.8
作者:
I. Rudvin;A. Valberg
通讯作者:
A. Valberg