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Biomedical subjects

O Palacz

Publications and source records attributed to O Palacz.

85 records · Page 5Linked to original sources
PubMedDate not supplied

[Laser therapy of ocular toxoplasmosis].

The authors present the results of treatment by laser coagulation of inflammatory retino-choroidal foci in 32 persons with ocular toxoplasmosis. The diagnosis of Toxoplasma etiology was set on a basis of positive immunological reaction for Toxoplasma gondii antigen and after exclusion of other etiological factors. Among 42 eyes stabilization of the process after 1 intervention was observed in 34, i.e. in 89 p.c. (period of observation--up to 4 years). In the following 8 eyes arised the necessity to perform additional coagulations because of formation of fresh foci which appeared in 5 eyes after 6 months, in 2 eyes after 1 year and in 1 eye after 2 years since onset. The authors consider the application of laser coagulation in ocular toxoplasmosis as a favourable method together--or independently--with pharmacological treatment.

Adolescent↗
PubMedDate not supplied

[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↗
PubMedDate not supplied

[Results of the treatment of retinal detachment by intrascleral buckling using the Schepens method].

Fifty two patients (53 eyes) with retinal detachment were operated by Schepens' method with the intrascleral silicone implantation technique, differing from the classical Schepens' method particularly in cerclage operations. The tightening band nearly along its total course (except of the rectus muscles) runs intrasclerally. The authors achieved an anatomical reapposition in 79% of operated cases.

Adult↗
PubMedDate not supplied

[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↗
PubMedDate not supplied

[Efficiency of laser trabeculotomy in open-angle glaucoma].

Results of Nd: YAG laser trabeculotomy performed in 71 eyes of 48 patients with open-angle glaucoma are presented. There were 25 females and 23 males, aged 15-86 years (mean age 67 years). The follow-up was 0.5-1.5 years. Normalization of the intraocular pressure was achieved in 90% of cases and outflow facility was improved in 87.3%. Deterioration of visual acuity was observed in 2.8% of eyes. In 4.2% the procedure was complicated by anterior chamber haemorrhages. The authors discuss principles, indications and techniques of Nd:YAG laser trabeculotomy and compare their results with those of others.

Adolescent↗
PubMedDate not supplied

[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↗
PubMedDate not supplied

[Remarks on iris complications caused by intraocular lens implantation based on our own experiences].

Of 346 cataract extractions with IOLs implantation (184 anterior and 162 posterior chamber) in 98 eyes iris complications were observed. They were: pigment dispersion syndrome and iris-tuck-syndrome, the latter caused by the pressure of the haptic part of the lens. In our material these complications were observed more often after posterior chamber IOLs than in anterior ones. However, the consequences of the complications were more serious and had worse prognosis in anterior chamber IOLs. The authors compared their results with literature.

Adolescent↗
PubMedDate not supplied

[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↗
PubMedDate not supplied

[Attempts at treating pigmented iris tumors with argon laser].

4 cases of flat pigmentary iris tumours, spreading out, in three cases, into anterior chamber angle are presented. The lack of patient's consent to surgery made histopathological diagnosis impossible and limited the choice of method of treatment. The several stage photocoagulation with argon laser was performed. The treatment resulted in cicatrization with atrophy of pathological tissue and the structure of iris itself. During follow-up (2-5 years) the growth of tumors was regressed and all patients were in good condition.

Adult↗
PubMedDate not supplied

[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↗