Biomedical subjects
Publications and source records attributed to H A Stein.
Powdered and powder-free gloves were compared during ophthalmic surgery. It was found that powder may reappear on well-rinsed gloves by the end of intraocular surgery and be implanted inadvertently into the eye or in the stromal interface during laser in situ keratomileusis. Powder-free gloves, therefore, make surgery significantly safer.
PURPOSE: To determine whether removing the corneal epithelium by dilute alcohol is equal to other epithelial removal techniques. SETTING: The Bochner Eye Institute, Toronto, Ontario, Canada. METHODS: Epithelium was removed using 25% alcohol placed on a circular pledget; the alcohol remained on the cornea for 3 minutes. Irrigation was performed with cold balanced salt solution. The epithelium was then lifted with forceps and removed. Ninety-one eyes having photorefractive keratectomy for low myopia (less than 8.00 diopters) were treated; 41 eyes were followed between 4 and 10 months (mean 6 months). Complications such as haze and loss of best corrected visual acuity (BCVA) were recorded. RESULTS: All alcohol-treated eyes achieved a BCVA of 20/40 or better, 65.9% had 20/20 and 92.7%, 20/25 or better. There were no complications or adverse effects. CONCLUSIONS: Epithelial removal using 25% alcohol did not adversely affect the algorithms used with the VISX 20/20 excimer laser, indicating the technique is safe, predictable, and effective. There was no significant loss of BCVA, toxic effects, or stromal hydration.
Explore the source record for details and available documents.
Any needle passing through a rubber stopper can aspirate a core of rubber. This rubber may then be injected into the eye or into the retrobulbar or peribulbar space. Aspirates from a number of syringes were spun down in a centrifuge and examined for microscopic particles. All specimens contained microscopic particles even from half-used bottles of Xylocaine.
Explore the source record for details and available documents.
In November 1982 146 persons became ill within a few days with trichinosis in Bitburg (GFR). Prompt epidemiological and immunodiagnostic investigations demonstrated the high likelihood of infection by ingestion of raw sausage produced at a butcher's near Bitburg. The diagnosis of trichinosis could be ascertained still in the acute phase of disease by demonstration of the Trichinella larvae in peripheral blood. Retrospective analysis of earlier disease from the same area showed that the same infection source had led to a smaller epidemic already in August/September of 1982. This investigation confirms that epidemic trichinosis may occur in the GFR despite law-enforced assessment of meat for Trichinella. However, by combination of epidemiological and immunodiagnostic methods the mode and source of infection can be established promptly and reliably.
Results of a multicentre, controlled, comparative study of two daily care regimens for rigid gas-permeable contact lenses are described. Whereas both regimens were generally effective and safe for the 69 patients wearing the Boston Lens, the Barnes-Hind regimen showed clinically and statistically significant advantages over the Boston Lens regimen: the proportions of patients in the Barnes-Hind group with corneal staining or palpebral conjunctival injection were reduced during the study and were lower on several occasions than the proportions of the Boston group.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
A 30-year-old man with progressive dysphagia and pain on alcohol ingestion was shown to have a mass lesion confined to the esophageal wall. The mass proved to be Hodgkin's disease. It was treated by surgical excision and radiotherapy and the patient remains well, five years after onset. While Hodgkin's disease presenting in the esophagus is rare, it warrants inclusion in the differential diagnosis of esophageal mass lesions.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.