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R Hürzeler

Publications and source records attributed to R Hürzeler.

4 recordsLinked to original sources

[Cornea guttata in specular microscopy (author's transl)].

The specular photomicrographic appearance of cornea guttata is described in both donor material and in patients. Furthermore, an analysis of endothelial cell density in patients with cornea guttata is presented and compared with cell density in the normal population in the same age group. The mean endothelial cell size in 16 eyes with cornea guttata was significantly larger than in 20 normal eyes of persons between 70 and 79 years of age.

Aged↗

Cornea guttata in donor material.

Specular microscopy made it possible to detect cornea guttata changes within the regular reflection off the posterior surface of the cornea in donor matrial. Small, roundish lesions were present in mild forms within an otherwise intact endothelium, and in advanced cases, large warts were seen free of endothelial cell coverage.

Aged↗

Bacterial flora of stored human donor corneas after antibiotic treatment.

In 100 out of 122 eyes obtained at autopsy, bacteria could be cultured in swabs taken from the conjunctivae. After individual storage of the excised corneas at +4 degrees C in a modified tissue culture medium containing 100 microgram/ml Gentalmicin, in 18 culture specimens there was still some growth of microorganisms. In comparison to nine other antibiotics, Gentamicin was the most effective against cultivated bacteria in a sensitivity test. However, in 25% of the specimens Ps.aeruginosa was resistant to Gentamicin. Polymyxin, to which Ps.aeruginosa was not resistant in the same test, should be used in combination with Gentamicin for antibiotic treatment of stored human donor corneas.

Anti-Bacterial Agents↗

Endothelial changes in human donor corneas.

The corneal endothelium of intact donor eyes was evaluated by means of a specular microscope. In a series of 278 corneas, different morphologic changes were found in the endothelium. These changes are described and systematically classified. The findings are analogous to results obtained on experimental animals and with light- and electron-microscopic studies of other authors.

Cadaver↗