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Biomedical subjects

H Baurmann

Publications and source records attributed to H Baurmann.

At least 55 records · Page 3Linked to original sources
PubMed1976

[Occurrence of diffusions shown by fluorescence angiography of the laser coagulation in animals (author's transl)].

Laser treated rat fundi were observed angiographically and with the fluorescence microscope for 3 months. Angiographically diffusions have been observable up to about one week post laser, fluorescence microscopically, however, for the whole observation time of 3 months. From the 2nd week, these diffusions were produced mainly by neovascularizations which angiographically were not visible. They started from the choroid and penetrated into the outer part of the retina.

Animals↗
PubMed1975

Investigations on laser coagulated rat eyes by fluorescence angiography and microscopy.

Laser coagulation using 50 and 100 mW of power, a spot of 50 microns and an exposure time of 0, 2 seconds were performed on rat eye fundi. We observed the effects which were produced in the retina and choroid utilizing both fluorescence photomicroscopy with incident excitation light and fluorescence angiography. No distinct differences were noticed between the effects produced by 50 and by 100 mW. Both energies damaged choroid and retina, especially the outer part of the retina. Moreover, fluorescein angiography within 24 hours gave us effective information for estimating the applied laser effect.

Animals↗
PubMed1975

[Experimental fluorescence angiographic and microscopic investigations on laser treated animal eyes (author's transl)].

The effects of laser coagulation on rat fundi were studied angiographically and with the fluorescence microscope. The coagulations were performed using constantly 300 mW and 0.2 second exposure time and 50 microns spot diameter. We observed the animals for 3 months, after which we could still observe dye diffusion by fluorescence angiography. With the fluorescence microscope we could localize these diffusions as originating from neovascularisation starting from the choroid. These new vessels penetrated subsequently into the exterior retinal layers. At the beginning of our observation time, the retinal vessels showed some sinuosities, dilatations and solitary stenosis, but no disturbance of circulation was demonstrable.

Animals↗