Klinika oczna
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Review Historical Article
[The history of cocaine in medicine and its importance to the discovery of the different forms of anaesthesia].
The first description of the use of cocaine by humans can be found in the memoirs of the Florentine traveller Amerigo Vespucci (1451-1512). For the next 300 years mostly the advantages of cocaine use, also as a medication, were emphasized. In 1860 Albert Niemann (1834-1861) isolated an active ingredient of coca leaves, which he named cocaine. ⋯ William Stewart Halsted (1852-1922) and his collaborator Richard John Hall (1856-1897) began their own research on cocaine injections. Eventually they developed the nerve and regional blocking techniques. Nowadays, due to the potential harmful effects of cocaine and the risk of addiction, the indications for the use of cocaine as an anaesthetic are strictly limited.
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Comparative Study
Assessment of blood flow velocity in eyeball arteries in multiple sclerosis patients with past retrobulbar optic neuritis in color Doppler ultrasonography.
The aim of the study was to evaluate blood flow velocity in eyeball arteries in affected and unaffected eyes in patients with past retrobulbar optic neuritis in the course of multiple sclerosis (MS). ⋯ In MS patients with past optic neuritis disturbances of ocular circulation can be observed. The statistically significant diminishing blood flow velocity parameters and vascular resistance indices in eyeball arteries may indicate alterations of blood flow. Lowering of systolic and mean velocities and resistance indices of blood flow are most expressed in CRA and SPCA. Reduction in blood flow parameters in the examined arteries occur both, in the eyes previously affected by past optic neuritis and in contra lateral, unaffected eyes.
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We report case of acute retinal pigment epithelitis (ARPE), a very rare ophthalmic disorder, which has a very good final visual prognosis. The 18 years old woman was examined by ophthalmologist for sudden visual decrease of vision and dark spot in visual field of her left eye. The best corrected visual acuity (BCVA) of the left eye at the initial diagnosis was 0.1 and after 4 months improved to 0.9. The diagnosis or ARPE was made on the basis of fundoscopy, fluorescein angiography, electroretinography and optical coherence tomography (OCT) examination.
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Diabetic visual complications prevention relies, on the one hand, on an intensive metabolic control of diabetes and elimination of coexisting risk factors for development of diabetic retinopathy and, on the other hand on carrying out a programme for early detection and treatment of diabetic retinopathy. Proper treatment of diabetes, expressed by good glycaemia control, proper arterial pressure parameters and lipid concentration in blood reduce the risk of heavy complications and extends life span and improves its quality. ⋯ Examination of the eye fundus completed with fluorescein angiography make a golden standard in retinopathy diagnosis and classification. The incidence of vision loss due to diabetes is significantly lower in the countries which introduced programs preventing retinopathy than in those which do not have them.