✦ LIBER ✦

Electroretinograms and pattern visually evoked cortical potentials in central areolar choroidal dystrophy

✍ Scribed by E. Adachi-Usami; K. Murayama; Y. Yamamoto

Publisher: Springer-Verlag
Year: 1990
Tongue: English
Weight: 337 KB
Volume: 75
Category: Article
ISSN: 0012-4486
DOI: 10.1007/bf00142591

No coin nor oath required. For personal study only.

✦ Synopsis

We describe three patients with central areolar choroidal dystrophy whose electroretinograms (ERGs) and pattern visually evoked cortical potentials (VECPs) confirmed their macular dysfunction. Visual fields measured by Goldmann perimetry showed central relative scotomata corresponding to a dystrophic lesion. Dark adaptation curves were slightly abnormal either in the first curve or in the second curve, depending on the visual acuity. Color vision was disturbed irregularly. Fluorescein angiography revealed a loss of the choriocapillaries, and a hyperflnorescent border outlined the dystrophic lesion.

Single-flash dark-adapted ERGs and scotopic ERGs were almost normal, while photopic and flicker ERGs showed slightly attenuated amplitudes. Conversely, VECPs to pattern reversal stimulation were greatly affected for both transient and steady-state stimuli.

We conclude that, in central areolar choroidal dystrophy, pattern VECPs can provide more information on macular dysfunction than does the ERG.

📜 SIMILAR VOLUMES

Pattern electroretinogram and visual evo

Pattern electroretinogram and visual evoked cortical potential in ethambutol optic neuropathy

✍ Yonetsugu Kakisu; Emiko Adachi-Usami; Atsushi Mizota 📂 Article 📅 1987 🏛 Springer-Verlag 🌐 English ⚖ 321 KB

Forty-one eyes in 21 cases of ethambutol optic neuropathy were investigated for the pattern visual evoked cortical potential (VECP) and the pattern electroretinogram (ERG). In 21 of the eyes the disappearance VECP responses were not detectable. In the other 20 eyes the peak latency and amplitude of

Luminance-unbalanced pattern onset-offse

Luminance-unbalanced pattern onset-offset electroretinogram and visual evoked cortical potential

✍ Masaru Yoshii; Kenji Yanashima; Tetsuo Kawara; Fukumi Nozawa; Shigekuni Okisaka 📂 Article 📅 1991 🏛 Springer-Verlag 🌐 English ⚖ 312 KB

The effects of a luminance-unbalanced pattern onset-offset mode of stimulation on electroretinograms and visual evoked cortical potentials were investigated. With the use of originally devised software, only offset luminance was varied from 14.7 to 62.3 cd/m 2. A vertical grating pattern (1.5 c/deg,

Pattern visual evoked potentials and pat

Pattern visual evoked potentials and pattern electroretinograms in hypothyroidism

✍ Graham E. Holder; John R. Condon 📂 Article 📅 1989 🏛 Springer-Verlag 🌐 English ⚖ 236 KB

This study reports the pattern visual evoked potential (PVEP) findings in 10 patients with idiopathic hypothyroidism. Eight of these patients also had pattern electroretinography (PERG) performed and six were additionally seen after treatment with thyroxine. Only one patient had definitely abnormal

Abnormality of the pattern electroretino

Abnormality of the pattern electroretinogram and pattern visual evoked cortical response in esotropic cats

✍ M. L. Devlin; J. L. Jay; J. D. Morrison 📂 Article 📅 1989 🏛 Springer-Verlag 🌐 English ⚖ 701 KB

In six 3-week-old kittens, the tendon of the lateral rectus muscle of one eye was sectioned under anaesthesia in order to induce an esotropic (nasally-directed) squint. At maturity, the pattern electroretinogram (PERG) and pattern visual evoked response (PVER) were recorded under anaesthesia to phas

Comparison of automated perimetry and pa

Comparison of automated perimetry and pattern visually evoked cortical potentials in optic neuritis

✍ N. Fujimoto; E. Adachi-Usami 📂 Article 📅 1988 🏛 Springer-Verlag 🌐 English ⚖ 301 KB

Twenty-one eyes of thirteen patients suffering from optic neuritis were examined with the Octopus automated perimeter and pattern visually evoked cortical potentials. All eyes had visual acuity of 0.2 or better. Visual field examination was measured by program 31 or 33, which tests the central 30-de

The relation between the after-negative

The relation between the after-negative potential of the pattern electroretinogram and the visually evoked cortical potential

✍ Kenji Yanashima; Masaru Yoshii; Shigekuni Okisaka 📂 Article 📅 1986 🏛 Springer-Verlag 🌐 English ⚖ 265 KB