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Biomedical subjects

B Zeisberg

Publications and source records attributed to B Zeisberg.

6 recordsLinked to original sources
PubMed1988

[Retinal detachment following implantation of a posterior chamber lens].

In a series of 6000 cases of pseudophakia following extracapsular cataract extraction and implantation of Simcoe-type posterior chamber lenses, observed for a minimum of 20 months, the incidence of retinal detachment was 21 cases (0.33%). Significant risk factors include male sex (18/21, 82%), high myopia (axial length, over 25 mm in men), intraoperative rupture and late discussion of the posterior capsule. The frequency of retinal detachment following intracapsular cataract extraction without lens implantation was four times greater than that after extracapsular cataract extraction with implantation of a posterior chamber lens. After intracapsular cataract extraction and implantation of an iris-fixation lens it was eight times greater. Horseshoe tears, most of which were located in the peripheral superior quadrants, were seen in 14 eyes (76%). In three eyes no holes were detected. Reattachment was less successful in eyes with posterior chamber implants than in phakic eyes with retinal detachments.

Aged↗
PubMed1988

[Cataract operations on the remaining eye].

In the last five years, 500 one-eyed patients have undergone cataract surgery at the authors' hospital. A Simcoe-type posterior chamber lens was implanted in 425 of the eyes. An eye was defined as an only eye if corrected vision in the fellow eye was 1/60 or less, or better vision in cases of amblyopia. The main causes of loss of function in partner eyes were macular degeneration, amblyopia, and glaucoma. The rate of intraoperative and postoperative complications was the same as in the entire patient collective, and in absolute terms actually lower. There were four cases of intraoperative rupture of the posterior capsule (in two of which it subsequently proved possible to fit a posterior chamber intraocular lens (PCIOL], and one case each of corneal decompensation and excessive hemorrhage into the anterior chamber. PCIOLs were subsequently also implanted in both these eyes. Early postoperative complications included several cases of iris prolapse, all of which were easily rectified, and intermittent phases of endothelial decompensation associated with cornea guttata. In view of the low overall rate of intraoperative and postoperative complications, the authors advocate implantation of a PCIOL in remaining eyes with visual function, except those with proliferative retinopathies (primarily diabetes mellitus), pre-existing retinal detachments (particularly in young men with myopia and a history of detachment in the fellow eye), and unregulated glaucoma.

Aged↗
PubMed1981

[Mass data and psychoacoustic interpretations of patients with 8-channel cochlear implants (author's transl)].

Six patients are described following insertion of an 8-channel cochlear implant. The prosthesis was modified from the Vocoder technique, and was implanted by a simplified method of the procedure previously reported by us. In addition to the perception of background noise as well as the differentiation of periodicity and frequencies, a distinct improvement of the patients' speech discriminations could be observed with this technique.

Audiometry, Speech↗