[The influence of stimulation dopaminergic D, i D2 receptors in lateral geniculate body on flash visual evoked potentials (FVEP) in rats].

Purpose: The topic of this paper is to define the influence of stimulation dopaminergic D1 i D2 receptors in lateral geniculate body by flash visual evoked potentials (FVEP).

Material And Methods: Wistar rats were examined. There were stereotaxically implanted with guide caniula into the lateral geniculate body to inject substances and with VEPs electrodes on the skull and on the surface of visual cortex.

[The influence of dopamine injected into the lateral geniculate body on flash visual evoked response in rats].

Purpose: Numerous neurotransmitters and neuromodulators operating on all levels of the visual system, influence the parameters of cortical evoked response. The aim of this study was to find the influence of dopamine (DA) injected into the lateral geniculate body (nucleus) on flash visual evoked response (FVEP).

Material And Methods: The experiments were performed on adult Wistar rats.

[The function of eye and vision system in children and youth treated with vigabatrin--our own experiences].

Purpose: The aim of this study is to find the relationship between visual function changes and vigabatrin treatment continuation or discontinuation.

Material And Methods: 19 patients (11 males, 8 females) from 8 to 20 years old, treated with vigabatrin because of partial epilepsy, were examined. Best corrected visual acuity, contrast sensitivity and static visual field were done.

[Visual evoked potentials (FVEP) after the prenatal exposure to heavy metals--experimentals studies].

Purpose: To find out, if any and how deep alterations in visual tract are due to prenatal intoxication by heavy metals such as: cadmium (Cd), lead (Pb), mercury (Hg) and manganese (Mn). The measure of these alterations were the changes in flash visual evoked potentials after prenatal intoxication.

Material And Methods: The experiments were carried out on 55 white newborns Wistar rats, which were divided into 5 groups: control group (14 rats), Cd group (12), Pb (6), Hg (14) and Mn (9).

[Serious ophthalmic and orbital complications after maxillary sinus surgery--case report].

The authors described serious irreversible ophthalmic and orbital complications (blindness and total ophthalmoplegia) which occurred during maxillary sinus surgery (Caldwell-Luc) in two patients.

[Intraorbital foreign body--three years follow-up].

A case of patient with metallic intraorbital foreign body, was described. The foreign body went trough the eye and finally was situated close to the optic nerve. After three years, no signs of siderosis were found (ERG).

[Ocular complications in course of idiopathic retroperitoneal fibrosis].

Idiopathic retroperitoneal fibrosis is a rare collagen vascular disease of still unclear, immunological etiology. One of the first descriptions of this pathology was derived from Ormond and the Ormond's disease became its second name. It is characterized by a chronic, non-specific inflammation of the retroperitoneum, which obstructs retroperitoneal structures.

[Influence of prenatal exposition for selenium on visual evoked potentials (FVEP) in rats].

Selenium is an essential trace element in lower concentration and toxic in higher one. The aim of the study was to find out if the small doses of selenium taken by pregnant rats change the visual evoked potential (FVEP) curve in newborns. The FVEP was done in 4-6 month old white, Wistar, offsprings rats.

[Quality of life in patients suffering from choroideremia].

Purpose: To direct attention on every-day problems in choroideremia, which are not a barrier in patients occupation.

Material And Methods: Two cases of patients with choroideremia which was diagnosed when they were 30 and 54 are described. In spite of widespread visual field changes patients with good visual acuity did not have to change their lifestyles or their jobs (miner and mechanic).

[Flash full-field electroretinography in diseases with night blindness].

Purpose: The aim of this study is to present similarities and differences of electroretinograms in early stages of retinal diseases with nyctalopia.

Material And Methods: Flash full-field electroretinography was done according to ISCEV standards and also with chromatic stimulations in patients with nyctalopia, who were diagnosed as various forms of congenital stationary night blindness and various types of retinitis pigmentosa, choroideremia, gyrate atrophy and also in patients with nyctalopia, because of unknown reason. ERG results were compared with normal values and with each other.

[Acute endophthalmitis of 15-year old boy in the course of acute lymphoblastic leukemia. Part II--Electrophysiological examinations].

Purpose: The aim of the study is to present objective estimation of visual function in eyes affected by leukemia.

Material And Methods: The boy who was described in the first part of this study was examined. Visual evoked potential (VEP), full-field flash electroretinography (FERG), electrooculography (EOG), were done according to ISCEV standards.

[Acute endophthalmitis of 15-year old boy in the course of acute lymphoblastic leukemia--part I].

Purpose: The aim of this study is to present dramatic ocular manifestation of acute lymphoblastic leukemia.

Material And Methods: 15-year old boy was hospitalized due to acute leukemia at the Department and Clinic of Pediatric Hematology and was referred to ophthalmologist because of strong pain and decreased visual acuity of the left eye. General ophthalmic examination and electrophysiology were done.

[The intracranial hypertension in the course of Arnold-Chiari malformation].

Purpose: The aim of this study was to remind the symptoms and diagnostic methods helpful to recognize Arnold Chiari syndrome.

Material And Methods: We have presented a 53-year-old woman with papilledema who was operated and treated oncologically because of right breast tumor - four years ago. As a result of diagnostic research which took into consideration a brain magnetic resonance imaging (MRI), the suspicion of metastatic cerebral tumor was excluded and Arnold - Chiari malformation was diagnosed.

Influence of dopamine on flash visual evoked potentials (FVEP) in prenatally mercury intoxicated rats.

The female adult white Wistar rats were given tap water (control) or 50 ppm of methylmercury chloride (MMC) ad libitum throughout their pregnancies. Newborn rats drank mother's milk during the first 21 days after delivery and then only tap water. The study was carried out on three-month old offsprings of white Wistar rats.

[Optic disc drusen and glaucoma--case report].

Optic disc drusen make examination towards glaucoma difficult to interpret. They change nerve head morphology and visual field defects can resembling glaucomatous damage. Patient with strong headache was examined and we found drusen on both optic nerve heads and intraocular pressure about 27 mmHg.

[Short wavelength perimetry--the significance in diagnosis of glaucoma in myopic patients].

The static perimetry is the most useful diagnostic method in glaucoma. The aim of this paper is to compare the results of static short wavelength automatic perimetry (SWAP) with the classic one (white) in myopic patients with and without glaucoma. The Tubingen Automatic Perimeter was used, the threshold strategy within the central 30 degrees and glaucoma program was performed.

[Sudden blindness of 11-year old boy in the course of acute lymphoblastic leukemia].

Purpose: The aim of this study is to present dramatic ocular manifestation of acute lymphoblastic leukemia.

Material And Methods: The 11 years old boy was hospitalized due to acute leukemia at the Department and Clinic of Pediatric Hematology, and was referred to ophthalmic examination because of sudden blindness of the right eye. General ophthalmic examination and electrophysiological tests were done.

[Flash visual evoked potentials (FVEP) examination under midazolam sedation of non-cooperating children].

Purpose: To find the optimal conditions for visual evoked potential (VEP) examination of non-cooperative children using midazolam maleate sedation.

Patients: 32 children aged from 8 months to 13 years (mean 3.5 years) with mental disorders, emotional problems and/or very low vision due to various reasons.

[The long term clinical outcome of anterior chamber lenses after cataract surgery].

Purpose: To analyse the functional results and postoperative complications of primary and secondary anterior chamber lenses implantation in a follow up of 10 years.

Patients And Method: Sixty one patients (64 eyes), 29 females and 32 males, between 22 and 96 year of age (midding 64 years), who underwent cataract surgery with anterior lens implantation from 1990 to 2000 were analysed. It was performed with cataract removal in 51 eyes (after intracapsular extraction in 18 eyes and 33 eyes with intraoperative complications making impossible to apply the posterior chamber intraocular lens).

[The long-term follow up after trabeculectomy].

The Aim Of The Study: To estimate the efficacy of trabeculectomy for primary open angle glaucoma.

Material And Methods: Since 1990 to 2000 we observed 91 eyes of 79 patients (53 women and 26 men) aged 39-86. The results of performed surgery were valued directly after the trabeculectomy and in period of over 8 years.

[The effect of serotonin on flash visual evoked potential in the rat prenatally exposed to cadmium].

Aim: The purpose of this paper was to find out any influence of cadmium (Cd) on the effect of serotonin (5-HT) in the central nervous system (CNS).

Method: 18 Wistar albino strain female rats were divided into 3 groups: 6 received 5 ppm, 6 one 50 ppm cadmium in tap water since time of conception and during next 21 days after delivery. Control group of 6 rats received tap water only.

[The effect of gamma-aminobutyric acid injected into lateral brain ventricle of rats after prenatal cadmium intoxication on flash visual evoked potentials (FVEP)].

Purpose: To find out any influence of gamma-aminobutyric acid (GABA) injected into lateral brain ventricle in newborn rats prenatally exposed to cadmium (Cd).

Method: 18 white, Wistar, offspring rats were divided into 3 groups, each consisting of 6 rats (control, 5 ppm and 50 ppm of Cd in drinking water). Newborns were examined when they were 3-6 months old.

[The effect of dopamine injected into the lateral brain ventricle on flash visual evoked potential (FVEP) after prenatal intoxication with cadmium].

Purpose: Earlier studies demonstrated that exposure, especially prenatal, of mammalians to cadmium (Cd) results in disorders of visual evoked potentials (FVEP). The purpose of this study is to find out any influence of cadmium intoxications on the effect of dopamine (DA) on FVEP.

Method: 18 Wistar albino rats in 3-6 months of age were divided into 3 groups: control (drinking tap water only), prenatal exposure of 5 ppm, and 50 ppm Cd.

[Visual system function in patients after surgery for intracranial tumors].

Unlabelled: Visual function was studied in patients after operations for brain tumours. The study group comprised 7 cases. Visual acuity, field of vision by kinetic and static methods and visual evoked potentials were studied before and after operations.

[The seasonal course of recurrent uveitis in children and youth].

Purpose: To analyse the etiology, localisation of inflammation, frequency of recurrences and the visual function in the course of uveitis in children.

Material And Methods: Sixteen children aged 4-18 years with uveitis were analysed for 2 to 15 years (mean 6.3 years) from the occurrence of the first symptoms.