[A manually operated micro-aspiration system for extracapsular cataract extraction].
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Biomedical subjects
Publications and source records attributed to H Kramp.
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Two patients had neovascularizations, bleeding and enclosed vessels or pigmented foci on the retina. The analysis of the hemoglobin showed a raised HbA2 fraction, indicating that they could be considered heterozygous gene carriers of beta-thalassemia. An electrophoretic-spectrophotometric method of determining the hematologic changes is described by means of which thalassemia minima can be diagnosed reliably.
A report on a boy with acute lymphoblastic leukemia, who was treated with cytostatic drugs and radiation. In the course of treatment retinal changes occurred in one eye; at first they seemed to indicate a solitary ocular relapse. Later on characteristic serological findings made it appear likely that the child was suffering from cytomegalic retinitis. The differential diagnosis of leukemic ophthalmopathy and the prognosis of leukemia with ophthalmopathy are discussed.
In addition to documenting pathologic vessel changes fluorescein angiography also makes it possible to show hemodynamic changes in retinal thrombosis. An interruption of laminary flow can be seen in the fluorescein angiogram at arteriovenous intersections. The retinal circulation time can be an aid to prognosis. If the interval does not exceed four seconds the prognosis is generally favorable but when it is considerably longer the prognosis with regard to visual acuity is generally poor and, furthermore, sequelae such as rubeosis iridis and secondary glaucoma must be expected. The therapeutic efficacy of laser coagulation can be judged more accurately by photographic and fluorescein angiographic documentation of the course.
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