[Prognostic value of ERG studies in cataract].
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Adult↗
Biomedical subjects
W Lubiński
Publications and source records attributed to W Lubiński.
[Evaluation of retinal function using the electroretinographic glare test in cases of simple glaucoma].
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Adult↗
[Electroretinography and the electroretinographic dazzle test in various dyschromatopsias in the light of our cases].
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Adolescent↗
[Value of the ERG in the "pattern" type (PERG) in the diagnosis of glaucoma].
The authors examined 14 persons (20 eyes) aged 51-77 years with open angle glaucoma and 3 persons (5 eyes) aged 37-59 years who were suspected for this condition. The control group consisted of 23 healthy persons (30 eyes) aged 14-40 years. The PERG results were statistically worked up using the t-Student test. Full clinical examinations and PERG were performed by means of the UTAS E-1000 system of LKC (USA) production according to modified by the authors method of May and coworkers. In the observed glaucoma group the authors revealed a statistically significant reduction of the interpeak values of the PERG in comparison with the control group; this points to a lesion of the ganglion cells in the course of this disease. The modified and adapted for the UTAS E-1000 method of May and coworkers and the applied system of conductors ensured the optimal reception of the PERG signals i.e. the maximal amplitude with minimal disturbances.
Adult↗
[Experimental studies of administration of perfluoroalkane to the anterior chamber and vitreous body of rabbits].
Presented are the results of experimental investigations evaluating the influence of perfluoroalcane on the ocular tissue in rabbits. The examined animals were divided into 2 groups. The rabbits from the first one received the compound into the anterior chamber of the right eye, the rabbits from the 2-nd group to the vitreous of the right eye. The left eye was the control one. Evaluated was the degree of absorption of the compound from the anterior chamber and vitreous, its influence on the anterior segment, transparency of the lens and intraocular pressure. An ERG was performed before the application of the compound and after 7, 14 and 49 days; subsequently the eyes were excised and a histopathological examination was performed in a light microscope.
Absorption↗
[Evaluation of bioelectric function of the retinal pigment epithelium in medium grade myopia].
Presented are results of examination of the hyperosmotic response in 30 persons (60 eyes) aged 12-13 years with axial myopia of a medium degree (-4.0 to -8.0 D sph). Disturbances of the bioelectric function of the retinal pigment epithelium was detected. In hyperosmotic response pathological records were received in 50 p.c. of the examined eyes. This examination has a diagnostic significance and may have a prognostic value in the analyzed stage of the axial myopia.
Action Potentials↗
[Electroretinogram of the "pattern" type of eyes with medium grade myopia].
Presented are the results of examination in 30 persons (60 eyes) aged 12-18 years with axial myopia of medium grade (4.0 to -8.0 D sph). Detected were the disturbances of the bioelectric function of the ganglion cells of the retina. Pathological records of the PERG were obtained in 30 p.c. of examined eyes. The "pattern" type of electroretinogram has a diagnostic significance and may have a prognostic value in axial myopia.
Action Potentials↗
[Diagnostic value of electrophysiologic studies in diabetics in our experience].
Twenty two patients (44 eyes) with diabetes of the type I aged 18-60 were examined. Duration of diabetes--at least 10 years. Performed were routine ophthalmological, general medical and electrophysiological examinations (EOG, ERG, with registration of oscillatory potentials, visual evoked potentials). It was evidenced that the most accurate method demonstrating the disturbances of the retinal function--independently of the visual acuity, fundus changes and other signs and complications--are the oscillatory potentials. Evoked visual potentials enable us in a majority of cases to evidence the central and subclinical disturbances of the optic nerve.
Adolescent↗
[Surgical methods in patients with cataract and myopia].
PURPOSE: To present own experiences in cataract surgery in myopic eyes. METHODS: 72 eyes of patients, aged 41-84, with 4-year follow-up were analysed. According to the degree of myopia, the patients were divided into 3 groups: MP up to -4.0 D (29 eyes), mp from -4.25 D to -8.0 D (27 eyes) and MP > -8.0 D (16 eyes). Extracapsular cataract extraction was performed in 55 eyes (76.4%) and intracapsular in 11 (15.2%). Posterior IOLS were implanted in 30 eyes (41.6%), anterior IOLS (including 4 secondary ones) in 26 (36.1%) and 16 eyes (22.2%) were operated on without IOLS implantation. RESULTS: Good visual acuity (> 0.5) was achieved in 73.6% of cases, useful visual acuity (> 0.1) in 89%. The results as well as the postoperative complications were compared with the control group of non-myopic eyes. Glaucoma was observed in 18% of myopic eyes and in 10% of non-myopic but it was not significant. CONCLUSION: The safest method of cataract surgery in myopic eyes is extracapsular extraction with posterior IOL implantation. These eyes should be operated on by very experienced surgeons.
Adult↗
[Implantation of intraocular lens in anterior and posterior chamber from our clinical material].
The authors presented results of 346 cataract extraction with IOL implantation--in 184 eyes anterior and in 162 posterior chamber. The follow-up ranged from 3 months to 6 years (mean 1.6 year). In 80.6% of cases, visual acuity after surgery was 0.6-1.0. Corneal astigmatismus 2.5-5.0 D was found in 31.2% of the eyes. The authors analysed early and late complications, taking into account the differences between anterior and posterior chamber IOLs implantation.
Adolescent↗
[Modification of Bagolini's registration method of normal macular and perimacular electroretinography in normal and selected cases of central retinal diseases].
The authors applied the modified method of Bagolini's et al., who were the first to make use of the technique based on standard stimulation of "pattern" type for simultaneous macular and perimacular ERG registration. UTAS E-1000 system was applied for stimulation and registration of bioelectrical signals. 26 eyes in 16 healthy patients, aged 18 to 41 years (mean 29.5), have been examined. The anterior and posterior segment of all examined eyes was not changed, function of both eyes was normal. The mean values of macular and perimacular potentials and M/P value, that is proportion of macular and perimacular potential and standard deviations have been determined. The examples of pathologically changed macular and perimacular potentials in some diseases of central retina have been presented.
Adult↗
[Surgery for retinal detachment in the years 1989-1994].
PURPOSE: Evaluation of early and long-term results of retinal detachments operated in the recent years. MATERIAL AND METHODS: 99 eyes of 98 patients were examined. The conventional methods of retinal detachment surgery have been applied, mostly (above 75%) encirclement with subretinal fluid drainage. RESULTS: Anatomical reattachment was applied in 81.8% of cases, but after follow-up, meanly 2.5 years this percent was 66.2% in the majority of cases functional results were also good; in 18.5% of the eyes with anatomical reatachment visual acuity did not improve. CONCLUSION: Encirclement of the eyeball with subretinal fluid drainage is the basic and the most useful method of surgical treatment in most cases of retinal detachment.
Adolescent↗