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Biomedical subjects

W Papst

Publications and source records attributed to W Papst.

At least 19 recordsLinked to original sources
PubMed1983

[An electronically guided peristalsis pump with an irrigation and suction cannula for extracapsular cataract extraction].

To improve extracapsular cataract extraction the author's team developed, in collaboration with the Geuder eye instruments company, an electronically controlled aspiration pump and an irrigation aspiration needle. Using this apparatus it is possible, with a deep anterior chamber, to remove the lens cortex completely and easily without damaging the posterior lens capsule. The rate of aspiration and the vacuum have to be adjusted in relation to the aspiration hole in the needle. The method of operating the pump, the aspiration and vacuum values so far determined and the surgical technique are described in detail.

Cataract Extraction↗
PubMed1980

[Goniotrepanation as a second fistulizing procedure (author's transl)].

Goniotrepanation was performed in 70 eyes as a second procedure following a fistulizing operation. Where there was a cicatrization of the bleb from the first intervention the tenon was removed at the same time. The results cover periods of observation of up to six years. Except in the early postoperative phase the removal of the tenon is of no importance for long-term pressure regulation and the formation of the bleb. Compared with the primary operation, pressure regulation was diminished. After an interval of four to six years 88% of the eyes were compensated, even though this was only accomplished without additional therapy in 35%. The creation of the largest possible intrascleral space is probably the deciding factor in the pressure regulation; the formation of this is favorably influenced by the preparation of a large, thin scleral flap with a flexible junction. This involved a slightly increased risk of postoperative complications as compared with the primary goniotrepanation procedure. Postoperatively the anterior chamber was flattened in 10 eyes and in one eye it disappeared completely, so that in three patients it had to be surgically reconstructed. However, since success in pressure regulation is dependent upon filtration, one should not forgo the advantage of a large intrascleral space allowing for slightly excessive filtration.

Adult↗
PubMed1980

[Ocular myopathies].

Explore the source record for details and available documents.

Diagnosis, Differential↗
PubMed1977

[Combined trephining with scleral flap (Elliot-Fronimopoulos) and intracapsular cataract extraction (author's transl)].

68 eyes of 51 non-selected patients on which a combined cataract extraction and Elliot's trephining with scleral flap (Fronimopoulos) had been performed between 1972 and september 1976, were re-examined between 6 and 48 months following operation. Postoperative complications were rare: there was one persistent shallow anterior chamber following excessive filtration, one increase of tension floowing a block of the trephine canal by vitreous, and one increase of tension following too tight suturing of the scleral flap which necessitated re-operation. Tension was compensated without therapy in 42 eyes (61,7%) and with local therapy in 24 eyes (35,3%). Only in 2 eyes (3%) normal intra-ocular pressure was not achieved. Altogether 97% of the eyes were compensated, some with additional local therapy. The combined cataract extraction and Elliot's trephining with scleral flap (Fronimopoulos) is an effective and low risk technique that is recommended in cases of cataract with raised intraocular pressure not controlled by medical treatment.

Adult↗