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Biomedical subjects

I Zolog

Publications and source records attributed to I Zolog.

16 recordsLinked to original sources

[Pseudophacos explant: the causes and the functional results].

We've studied a number of 20 cases of pseudophakic explantation performed in the Eye Center Timişoara between 1991-1997 from 2605 pseudophakic implantations. The interval between implantation and the moment of explantation was between 4 days and 7 years. The causes which indicated pseudophakic explantation were: pseudophakic bullous keratopathy, IOL decentration and dislocation, uveitis, persistent secondary glaucoma. The study refers to the established treatment for avoiding the explantation and also to the functional results obtained after pseudophakic explantation. Most of the explanted artificial lens cases were anterior chamber lens--13, all of them ALCON type, also we've explanted 4 pupillary implants Fedorov type. The visual acuities obtained after explantation were between hand movement perception and 10/10. Before surgery, visual acuity was between light perception and 10/10. The best functional results were obtained in pseudophakic decentration and dislocation cases and the worst in pseudophakic bullous keratopathy, uveitis and secondary glaucoma cases.

Humans

[Difficulties in reading the optotype].

The paper presents in its first part the actual knowledge about the literal paralexias taking into consideration that the main method to examine the visual acuity includes the literal gnosia that has a symbolic character. The literal paralexias represents a normal cerebral phenomenon at the limit of the visual acuity. The typology of the paralexias is being studied by the morphological entiry of the letter and by the degree of being aware of them. After these methods we can divide the subjects in 3 types. We conclude the utility of the construction of some charts containing letters at which we should take into consideration the degree of the morphological entiry of the letters as well as the suggestion of creating charts containing letters could be left out letters with double similitude: morphological and semiotic.

Agnosia

[Macular changes in patients with insulin-dependent diabetes mellitus].

We have studied, ophthalmoscopically and angiographically the macular modifications arisen within diabetic retinopathy in 79 individuals with insulin-dependent diabetes (IDD). The 79 patients presented an unbalanced diabetes, suffering from the disease for 5-8 years. The age of these patients ranged between 29 and 41. In all these cases we have noticed the predominance of the macular form of the diabetic retinopathy. Often the disease showed non-typical modifications. It is important to mention that in 213 of the cases we have found incipient lesions of diabetic retinopathy in the ocular fundus: the lesions were few in many cases.

Adult

[Ophthalmodynamometry. Current aspects].

In the paper we have pointed out the importance of ocular pressure in diagnosis of vascular-cerebral diseases. We have insisted upon the difficulties of interpreting the values of ocular pressure. The correlations between the maximum, medium and minimum values of ocular pressure are presented. We have also carried out a systematization of the four possibilities of altering the arteries resistance in the carotid system and pointed out the pathological situations which can determine changes of the ocular pressure. Presenting the method limitations we have emphasized the importance of the method in clinical practice.

Cerebrovascular Disorders

[Clinical correlations between the incidence of diabetic retinopathy and diabetic nephropathy].

In this study we included 651 patients with recently diagnosed diabetes mellitus registered at the Centre for Diabetes Care from Timişoara in 1995. All the patients were from Timişoara and the county of Timiş. They had insulin-dependent and noninsulin-dependent diabetes mellitus. We studied the eye lesions ophthalmoscopically, retinophotographically and angiographically and we correlated these informations with the lesions of diabetic nephropathy. We also made an evaluation of the functional implications of the ocular lesions.

Adult

[Familial congenital aniridia].

We have studied a family that has been presenting cases of congenital aniridia for three generations. A specific trace found in this family is the varied expression of the pathological gene as some members showed bilateral congenital aniridia, others showed unilateral aniridia with coloboma or just bilateral coloboma aspect. Aniridia can be found either as a "de novo" mutation in a family or as a continuous transmission between generations reproducing the dominant autosomal model. The ocular manifestations of this anomaly include: defects of the cornea, glaucoma, lens subluxations, hypoplasia of the fovea, nystagmus.

Abnormalities, Multiple

[The elementary visual and psychovisual manifestations in cerebral circulatory insufficiency].

A correlation between cerebral vascular topography and visual ways topography was made. The carotid vascularization intricates with the vertebral basilar vascularization, because the pre-geniculate and post-geniculate optical ways have mainly a carotid irrigation, while the diencephalic intermedial nervous centers and the final cortical nervous centers have mainly a vertebral basilar vascularization. It is shown that there are some individual arterial anatomical variations, two of which having a remarkable importance. The former refers to the carotid origin of the posterior cerebral arteria, which makes that the totality of visual ways being irrigated by carotid circulatory system. The latter refers to the Willis atypical polygons, which determine important atipies in the topographical distribution of the chiasma's arteries and optical bandelets. By visual field's modifications are sampled the different types of cerebral circulatory insufficiency.

Brain Ischemia

[Screening for diabetic retinopathy in Romania].

The survey proposes the analysis of the Romanian implementation of the action: "Protocol for screening of diabetic retinopathy in Europe" (London, 1990). Based on the answers obtained after spreading a typical questionnaire, it was constated that the protocol's implementation was done in 9 sanitary profilated units and implied a percentage of patients less then 4%. Some of the difficulties mentioned were the insufficiency of (photocoagulation) devices, of funds and adequate (qualified) staff, and also the inertia of the old evidencing system.

Diabetic Retinopathy

[The macular vascular changes in diabetic retinopathy].

The angiofluorographic surveys done on 46 patients with diabetes shows some particular modifications of the retinal vessels, from the foveolar, perifoveolar and parafoveolar areas. These modifications influence the values of the visual acuity; they are not connected in all cases with all the retinal vascular modifications.

Adult

[Psychiatric aspects in eye surgery].

The psychic ill man, no matter the gravity of the syndrome presented, is not undesirable and does not constitute a contraindication in ocular surgery. But in these situations a correct evaluation of the general and ocular state must be done, and also a correct premedication, a local or general on case good-conducted anesthesia and a close cooperation with the psychiatrist. Are discussed the problems of the little psychiatry which appear in the ocular interventions: senile psychosis, unorganical psychoses like ambulatory schizophrenia, maniacal-depress psychosis and paranoia decompensated by surgical act.

Contraindications

[The characteristics of general anesthesia in ocular surgery].

The general anesthesia is recommended in ocular surgical interventions on children or patients with psychical lability, anxiety and in general intervention on open globe. Before the intervention, a permanent contact between the ophthalmologist and the anesthesiologist is necessary, in order to manage the complexity of the case and to adopt a common attitude. The attitude which has to be taken to avoid the pre- and post-operational incidents is put into light.

Anesthesia Recovery Period

[Anesthesia in interventions for diabetic cataract].

It presents the indications and contraindications of general and local anesthesia in the patients with diabetic cataract. It insists about the criterion of preoperative clinical evaluation of the patients, about the different schemes used in those two type fact that every case must be individualised as for the indication for anesthesia. Also, it insists about the fact that it is necessary the collaboration between the ophthalmologist with diabetologist and anaesthesist, with a view to ensuring one operator gesture that establish the best, functional outcome.

Anesthesia, General