Biomedical subjects

B Rassow

Publications and source records attributed to B Rassow.

52 records · Page 3Linked to original sources

PubMed1976

[Laser trabeculopuncture. III Experiments with rhesus monkeys].

Argon-laser trabeculopuncture was carried out on 7 rhesus monkeys. Perforation of the trabecular meshwork was possible with laser impacts of 100 msec, 4,200 mW and a beam diameter of 50 mum. Clinical and histological observations covered an interval of up to 15 weeks after coagulation. They revealed an obliteration of both the trabecular holes and the canal of Schlemm after a few days. Shorter pulse durations and higher energies might be helpful to improve the effectiveness, possibly assisted by a therapy with anti-inflammatory agents.

Animals↗

PubMed1975

[Laser-trabecular puncture. Experimental studies].

From the presented evidence it may be seen that a sufficiently strong laser beam can produce performation openings in trabecular meshwork. We were using an exposure time of maximum 200 msec in order not to produce thermal reactions in surrounding tissues. The 1.6 W used by us was sufficient with the above exposure time to produce repeatedly openings in trabecular meshwork. Following this procedure perfusion of Schlemm's canal experiments let the used dye pass through artificially made openings, only slightly staining the trabecular meshwork.

Iris↗

PubMed1975

[Experiences with the automatic refractor "Dioptron" (author's transl)].

The consistency of values obtained by the automatic refractor "Dioptron" was evaluated by testing one subject repeatedly. The consistency was found so be significantly better than that given by subjective refraction. In about 20% of 140 eyes visual acuity found by the "Dioptron" - refraction was lower than that found by subjective refraction. Thus the results of the "Dioptron" should be controlled by a subjective refraction. The apparatus was also used in 15 children 5 to 12 years of age without problems.

Automation↗

PubMed1974