[Hemianopsias in cortical and subcortical lesions of the visual system: what is the difference?].

Abstract:

:The neuronal correlate of perception in the visual area remains unimpaired in lesions of the optic tracts or the radiatio optica. Hemianopsias due to lesions of these pathways are perceived immediately. On the contrary, hemianopsias due to a lesion of the visual cortex are not perceived or are only indirectly realized. It has not been established if a lesion of the primary visual area alone is sufficient to make the patient unaware of a hemianopsia or if additional impairments of the peristriate visual areas are required. Data processing within the cortical visual projection chain makes it likely, however, that a lesion of the striate cortex is enough. Under physiological conditions an uniformly illuminated field is represented in the neuronal activity by the borders of the field. Neurons within the field are not activated. The higher visual cortical areas can so not discriminate if an input missing from V1 is a result of the physiological processing or of a lesion. Scotomas are therefore not perceived. By analogy this argument should also hold for a hemianopic "scotoma".

journal_name

Klin Monbl Augenheilkd

authors

Baumgartner G

doi

10.1055/s-2008-1050171

subject

Has Abstract

pub_date

1988-05-01 00:00:00

pages

521-4

issue

5

eissn

0023-2165

issn

1439-3999

journal_volume

192

pub_type

杂志文章,评审
  • [Anti-inflammatory effect of topical diclofenac sodium (Voltarène Ophta) after argon laser trabeculoplasty: preliminary results of a prospective double-blind method].

    abstract::Using the laser flare-cell meter (LFMC), we have previously determined the intensity and pattern of post-ALT ocular inflammation. Inflammation peak occurs 48 hours after ALT and clinically relevant inflammation is seen in 100% of pigmentary glaucomas (PIG), 75% of pseudoexfoliative glaucomas (PEXG) but only in 25% of ...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

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    doi:10.1055/s-2008-1045765

    authors: Herbort CP,Mermoud A,Schnyder C,Pittet N

    更新日期:1992-05-01 00:00:00

  • The Oskar Fehr Lecture.

    abstract:PURPOSE:The first Oskar Fehr lecture is given in honour of Professor Fehr, a well respected ophthalmologist, who was head physician of the Department of Eye Diseases at the Rudolf Virchow Hospital from 1918. He practiced there until 1938, when he was forbidden to enter the clinic because he was Jewish and subject to th...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

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    doi:10.1055/s-0042-100735

    authors: Weiss JS

    更新日期:2016-06-01 00:00:00

  • [The significance of fluorescein angiogarphy in ocular toxocara granuloma (author's transl)].

    abstract::Four serologically-proved cases of intraocular toxocara infections are demonstrated. Three different manifestations in the following way were found: 1. Solitary granuloma on the posterior pole (2 patients). 2. Anterior and posterior uveitis of both eyes with granuloma near the ora (1 patient). 3. Iridocyclitis of both...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:

    authors: Müller-Bardorff G,von Denffer H,Fehenberger H

    更新日期:1978-12-01 00:00:00

  • [Landolt C and snellen e acuity: differences in strabismus amblyopia?].

    abstract:BACKGROUND:Assessment of visual acuity depends on the optotypes used for measurement. The ability to recognize different optotypes differs even if their critical details appear under the same visual angle. Since optotypes are evaluated on individuals with good visual acuity and without eye disorders, differences in the...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2005-858613

    authors: Becker R,Gräf M

    更新日期:2006-01-01 00:00:00

  • [Choroid infiltration in myelodysplastic syndrome].

    abstract:BACKGROUND:Myelodysplastic syndrome is a clonal disease of the hematopoetic system characterized by insufficiency of affected bone marrow cell lines. After long-term course of myelodysplastic syndrome an acceleration towards acute myeloic leukemia is a frequent finding. Involvement of the eye is a well known phenomenon...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

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    doi:10.1055/s-2008-1034944

    authors: Madjlessi F,Dann K,Althaus C,Sundmacher R,Meckenstock G

    更新日期:1998-07-01 00:00:00

  • [Treatment of herpes simplex keratitis with Vidarabin ointment (author's transl)].

    abstract::In 20 cases of herpes simplex keratitis the efficacy of Vidarabin ointment has been tested, in 19 cases after corneal abrasion. The eyes were treated once a day and padded until the epithelial defects had closed. Thereafter the ointment was applied 4 times per day for about one week more. On the average epithelial clo...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 临床试验,杂志文章

    doi:

    authors: Egerer I,Drobec P

    更新日期:1978-02-01 00:00:00

  • [Fusion amplitude and aniseikonia. Experimental studies of aniseikonia tolerance in unilateral aphakia].

    abstract::The fusion amplitude of image pairs with aniseikonia was measured using the synoptophore. Aniseikonia was produced in five subjects by alteration of slide drawings. The subject's right eye was in cycloplegia after paralysis with cycloplegic eye drops. To compare these measurements with aniseikonic pictures to those us...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2008-1050555

    authors: Pittke EC

    更新日期:1987-12-01 00:00:00

  • [A new iridocorneal endothelial syndrome].

    abstract::Three iridocorneal endothelial syndromes are distinguished: essential progressive iris atrophy, iris nevus (Cogan-Reese) syndrome, and Chandler's syndrome. Obviously, there are patients in whom findings do not correspond fully to any one of the three syndromes; signs and symptoms which justify being considered as a ne...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2008-1050446

    authors: Slezak H,Stur M,Strasser G

    更新日期:1987-06-01 00:00:00

  • [Vascular anastomoses at the posterior pole of the eye (author's transl)].

    abstract::Anastomoses between vessels of the fundus may occur as congenital malformations or secondary to vascular diseases affecting the eye. Congenital anastomoses can be of the racemose hemangioma type, with severe malformation of the retinal vessels, ocular complications, and neurologic manifestations, or as simple A-V shun...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:

    authors: Kottow M

    更新日期:1979-10-01 00:00:00

  • [Vascular retinal complication after long-time therapy with oral hormonal contraceptives (author's transl)].

    abstract::A case report is given of a vascular disease of right retina of a 37-year-old woman during treatment with contraceptives during 9 years. The retina shows at first a clinical picture of chorioretinitis centralis serosa. After stopping the hormonal preparation and prescription of Dexium (Kalziumdobesilat) the retinal ch...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:

    authors: Huismans H

    更新日期:1976-10-01 00:00:00

  • Effect of soft contact lenses on the measurements of intraocular pressure with non-contact pneumotonometry.

    abstract:PURPOSE:To evaluate the effect of soft contact lenses with different lens power on the measured value of the intraocular pressure with non-contact pneumotonometry. METHODS:120 eyes (80 healthy volunteers: 50 women, 30 men, aged 22 to 61 years) were included in this study. Intraocular pressure was measured with a pneum...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2003-812564

    authors: Schollmayer P,Hawlina M

    更新日期:2003-12-01 00:00:00

  • [Value of indocyanine green angiography in localization of occult choroid neovascularization].

    abstract:PURPOSE:To determine the role of Indocyanin Green (ICG) angiography in localizing occult new vessels associated with age-related macular degeneration (ARMD) and assess the possibilities of ICG guided laser photocoagulations. PATIENTS AND METHODS:Fluorescein and ICG angiographies (IMAGEnet system) of 62 patients with o...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2008-1035228

    authors: Piguet B,Schalenbourg A,Zografos L

    更新日期:1996-05-01 00:00:00

  • [Secondary glaucoma mechanisms (author's transl)].

    abstract::A new classification of the glaucomas concerned with the mechanisms of the intraocular pressure rise is presented. We differentiate hyperproduction and outflowblock glaucomas. The latter are divided into pre-, intra- and postrabecular forms. It is stressed that a gonioscopically open angle can be hydrodynamically clos...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:

    authors: Teichmann KD,Teichmann I

    更新日期:1979-09-01 00:00:00

  • [High altitude retinal hemorrhages in mountain climbers (author's transl)].

    abstract::A report is given on three patients who noticed an acute deterioration of visual acuity after a sojourn at 5000 altitude caused by retinal hemorrhages. We documented both the ophthalmological examinations such as visual acuity, fundus, perimetry and fluorescence-angiography and the systemic results. During the period ...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:

    authors: Vogt C,Greite JH,Hess J

    更新日期:1978-05-01 00:00:00

  • [Use of a new anomaloscope test in diagnosis of glaucoma].

    abstract:BACKGROUND:The Color Vision Meter 712 (CVM) is a new automatic computerized anomaloscope relying on both the Rayleigh and the Moreland equation. In the present study the diagnostic value of Color Vision Meter was examined in glaucoma for the first time and was compared with the Farnsworth 100 hue test. PATIENTS AND ME...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2008-1035512

    authors: Nguyen NX,Korth M,Wisse M,Jünemann A

    更新日期:1994-03-01 00:00:00

  • [Auto-allo-keratoplasty (with special reference to chondrokeratoprosthesis procedure) (author's transl)].

    abstract::Biological, rather then purely technical approach seems to be very essential to ensure better results in alloplasty of the cornea. The diseased corneal tissue (especially, after corneal burns) usually fails to accept a keratoprosthesis permanently. The cornea must, therefore, be biologically reconstructed by transplan...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:

    authors: Krasnov MM

    更新日期:1976-05-01 00:00:00

  • [Intravitreal Ranibizumab Injection for the Treatment of Occult and Classic CNV in Exsudative AMD].

    abstract:BACKGROUND:Double-blind, randomised, placebo-controlled and multicentre studies have proven an increase in visual acuity in one-third of the patients receiving Ranibizumab (0.5 mg) injections, who suffer from exsudative AMD. The purpose of this study was to evaluate the early effects of intravitreal Ranibizumab therapy...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-0029-1245131

    authors: Maier MM,Feucht N,Fegert C,Fiore B,Winkler von Mohrenfels C,Lohmann C

    更新日期:2011-02-01 00:00:00

  • [Nosocomial pseudomonas aeruginosa-associated keratitis in soft contact lens wearer].

    abstract:BACKGROUND:Pseudomonas aeruginosa is the most common cause of bacterial-associated keratitis in soft contact lens wearers, due to wrong use of soft contact lenses. Problems are often severe corneal ulcers and even corneal perforations. We report on a soft contact lens wearer with credibly correct use of soft contact le...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2003-812639

    authors: Grünauer-Kloevekorn C,Wilhelm F,Duncker GI,Hammer T

    更新日期:2004-01-01 00:00:00

  • [Effect of UVA on biosynthesis of melatonin in the retina].

    abstract::No difference in the retinal acetylserotonin-methyltransferase was found in two groups of quail which were exposed to irradiation of 0.1 W/m2 with green and blue light respectively for 1 hour. Decreased retinal enzyme activities (isoelectric point pH 5.0) were observed in response to exposure to green and UVA light co...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2008-1050633

    authors: Cremer-Bartels G,Krause K

    更新日期:1986-04-01 00:00:00

  • [Ultrastructure of the hyaloid canal and its retraction during gestation (author's transl)].

    abstract::1. The cells of the hyaloid canal originate from the primitive meningeal cells; 2. The lumen of the hyaloid canal can be observed through the optic nerve up to the subarachnoid space around the optic nerve; 3. Injections of tracer substances into the subarachnoid space of the optic nerve have shown that a communicatio...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2008-1055078

    authors: van der Zypen E,Fankhauser F

    更新日期:1982-05-01 00:00:00

  • [Demonstration of the tonographic effect in YAG laser trabeculoplasty in chronic glaucoma].

    abstract::In a pilot study comprising 16 eyes of 16 patients with chronic open-angle glaucoma the tonographic outflow facility was examined before and after Nd-YAG laser treatment of the trabecular meshwork. For evaluation of the facility effect of laser trabeculoplasty, the tonographic record between the third and seventh minu...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2008-1051010

    authors: Schrems W,Sold J,Krieglstein GK,Leydhecker W

    更新日期:1985-09-01 00:00:00

  • [Clinical use of a simplified suction-irrigation system for extracapsular cataract extraction].

    abstract::This paper discusses the clinical application of a simplified irrigation-aspiration system for extracapsular cataract extraction. This simplified apparatus represents a reasonably-priced alternative to the existing expensive and complicated systems. When the surgeon has gained sufficient practice in the use of this me...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:

    authors: Trinkmann R,Jungmann P

    更新日期:1984-12-01 00:00:00

  • [A family with blepharophimosis, ptosis, epicanthus inversus and telecanthus. Occurrence of the hereditary marker in five generations].

    abstract::The condition with blepharophimosis, ptosis, epicanthus inversus and telecanthus is reported in one family over five generations. The syndrome is transmitted as an autosomal-dominant characteristic with a very high penetrance and expressivity, preferentially affecting and being transmitted by males. Affected females w...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2008-1045911

    authors: Kuckelkorn R,Reim M

    更新日期:1992-11-01 00:00:00

  • [Patient Mobility and Journey Distance as Risk Factors for Severe Visual Impairment: Real-Life Data Analysis of Treatment-naïve Patients with nAMD under Intravitreal Aflibercept Therapy].

    abstract:OBJECTIVE:The aim of this study is to describe the effectiveness of aflibercept in treatment-naive patients with neovascular age related macular degeneration (nAMD) and the impact of patients' residential distance to the clinic and patients' mobility on therapy in a pro re nata regime. METHODS:A retrospective dataset ...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/a-1008-9357

    authors: Rauchegger T,Angermann R,Meusburger A,Schwab J,Haas G,Kralinger M,Zehetner C

    更新日期:2020-06-01 00:00:00

  • Diabetic Macular Edema in Diabetological Practices.

    abstract::Using mobile OCT equipment and remote ophthalmological diagnosis of n = 1538 diabetics in 17 diabetes practices in Germany, we found diabetic macular edema in 10.1% of the patients and retinal bleedings or microaneurysms in 15.6%. In 1.62% of the diabetics examined, the size of the edema was > 0.4 mm², in 7% the retin...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/a-1194-5211

    authors: Michelson G,Forst T

    更新日期:2020-11-01 00:00:00

  • Comparing Short-Duration Electro-Oculograms with and without Mydriasis in Healthy Subjects.

    abstract:BACKGROUND:In order to obtain artifact-free electro-oculogram recordings the subject's cooperation is necessary. The aim of our study is to evaluate the recording characteristics of short-duration EOG and to compare the effect of mydriasis on electro-oculogram recordings in a cohort of controls. PATIENTS AND METHODS:E...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章,随机对照试验

    doi:10.1055/s-0034-1396330

    authors: Türksever C,Orgül S,Todorova MG

    更新日期:2015-04-01 00:00:00

  • [Penetrating Limbokeratoplasty for Gelatinous Corneal Dystrophy].

    abstract:BACKGROUND:Gelatinous corneal dystrophy is a very rare disease in Europe and North America. Patients suffer from pain, photophobia and loss of vision, usually before the age of 20. Transplantation of limbal stem cells was proposed due to the high rate of recurrence after conventional penetrating keratoplasty. We presen...

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    pub_type: 杂志文章

    doi:10.1055/s-0043-109692

    authors: Lang SJ,Böhringer D,Reinhard T

    更新日期:2019-02-01 00:00:00

  • [The circulatory disturbance of the optic nerve with special reference to the side distribution and other dispositional factors (author's transl)].

    abstract::We examined 38 patients with disturbed blood supply to the optic nerve. The observations suggest: 1. men are more frequently affected than women. 2. the first attack of apoplexia nervi optici occurs most often in the left eye. 3. diabetes mellitus and most probably arterial hypertension are risk factors. ...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:

    authors: Bastian GO

    更新日期:1979-01-01 00:00:00

  • [Laser scanning topography and polarimetry with implantation of intraocular lenses before and after cataract surgery].

    abstract:BACKGROUND:In the last years, scanning laser measurements were established in glaucoma diagnostics. Techniques of special interest are scanning laser topometry (SLT) for exact measurements of the optic disc and its cup and scanning laser polarimetry (SLP) for precise assessment of the retinal nerve fiber layer thicknes...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-2008-1034816

    authors: Kremmer S,Pflug A,Heiligenhaus A,Fanihagh F,Steuhl KP

    更新日期:1999-06-01 00:00:00

  • [Videography with the slit lamp].

    abstract:BACKGROUND:Many new diagnostic instruments have been introduced for imaging in ophthalmology, particularly for retinal diseases and diagnostics in glaucoma. The slit lamp, however, as the most important instrument in practical ophthalmological work, has been largely unchanged for decades. It will be shown that a video ...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:10.1055/s-0031-1281765

    authors: Gellrich MM

    更新日期:2011-12-01 00:00:00