Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv für klinische und experimentelle Ophthalmologie
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Graefes Arch. Clin. Exp. Ophthalmol. · Jan 1991
Management of retinal detachment after penetrating eye injury.
Between December 1981 and April 1989 the authors operated on 61 eyes presenting with retinal detachment after penetrating eye injury. Air or expanding gases were used for retinal tamponade. The follow-up between complete gas absorption and last examination ranged from 8 months to 8 years (mean, 29 months). ⋯ Anatomic success was achieved by a single operation in 43 eyes (70.5%). A postoperative visual acuity of 20/40 or better was achieved in 46% of the eyes. The factors found to influence the postoperative outcome adversely include (1) association of severe blunt trauma (P less than 0.05), (2) anterior proliferative vitreoretinopathy (PVR) involving two or more quadrants (P less than 0.01), and (2) retinotomies (P less than 0.007).
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Graefes Arch. Clin. Exp. Ophthalmol. · Jan 1990
Comparative StudyPattern electroretinograms in optic neuritis during the acute stage and after remission.
A total of 20 patients with unilateral acute optic neuritis were studied. Each patient had experienced the recent onset of a decrease in visual acuity, a relative afferent pupillary defect, a relative or absolute central scotoma and a colour-vision defect. ⋯ Parallel to clinical recovery, a steady increase was observed in the amplitude of the positive component to normal values; no statistical differences between affected and fellow eyes was found. In contrast, the amplitude of the negative component remained significantly reduced after clinical recovery.
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Graefes Arch. Clin. Exp. Ophthalmol. · Jan 1988
Comparative StudyAnomalous retinal correspondence update.
For orthoptists and ophthalmologists, anomalous retinal correspondence (ARC) is a reality and an important finding. But since it has not been found in animals, ARC seems to be unknown to neurophysiologists. Comparing results of different stereotests, e.g., random-dot stereograms and the two-pencil test, provides some insight into different levels of cortical binocular interaction. ⋯ Random-dot stereopsis suggests that normal binocular interaction must take place in or near area 17, where data processing for small dots occurs before form recognition. Anomalous correspondence most probably has its seat where the retinal topology is not exact, i.e., where the binocular receptive fields are very large and encompass the corpus callosum, such as in area 20 or 21. This new hypothesis may explain the different forms of ARC according to the clinical entities.
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Graefes Arch. Clin. Exp. Ophthalmol. · Jan 1986
The Kayser-Fleischer ring during long-term treatment in Wilson's disease (hepatolenticular degeneration). A follow-up study.
The role of Kayser-Fleischer rings is described in 67 patients with Wilson's disease, both in the asymptomatic and symptomatic stage of the disease during life-long therapy, which lasted up to 22 years. The rings were missing in 60% of patients in the presymptomatic stage and in 2% of those in the symptomatic stage at the time of diagnosis. ⋯ In 2 of the 6 asymptomatic patients the rings did not reabsorb even after therapy of more than 10 years. The fading of Kayser-Fleischer rings seems to be independent not only of the stage of the disease but also of the effectiveness of the decopperizing treatment.