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Biomedical subjects

H W Schlote

Publications and source records attributed to H W Schlote.

16 recordsLinked to original sources
PubMed1991

[Double-guided vacuum trephine system "Asmotom"].

A new, doubly guided cornea suction trephine system is presented. By means of a suction rim placed on the limbus corneal and a suction disc in the centre of the cornea the vault of the cornea is preserved throughout the trephination procedure. Cutting is performed by a motor trephine, which rotates between the inner and the outer suction. The system allows creation of an absolutely safe perforation in a 360 degrees cut. The cut edges are precise and sharp. Both donor and recipient are trephined from the epithelial side. The endothelial cell loss is very low, amounting to 0.170 mm. The suction stabilization prevents any tilting of the trephine and avoids elliptical forms. Preliminary clinical experiences are presented.

Corneal Transplantation↗
PubMed1991

[Surgical treatment of high grade progressive myopia. Results and histological studies].

Since 1987 scleroplastic operations have been performed at the Clinic of Ophthalmology in Magdeburg in patients suffering from progressive high-grade myopia. Lyophilized dura transplants are used for these operations. The patients are up to 30 years of age and all were reexamined 1 year after the operation. During the follow-up study we observed no change in axial length in 80% of the patients; a positive tendency in the behaviour of the visus and increased rigidity of the sclera. There were few complications of the operation, and these were mild and transitory. They disappeared when treated with anti-inflammatory drops. Additional histological investigations were performed in animals. Rabbit's eyes showed vitalization of the lyophilized tissue after initial inflammation and antibody reaction. Goats' eyes did not show any signs of inflammation when examined after 3 months, and the transplants had taken well on the sclera.

Adult↗
PubMed1988

[Etiology and morphology of retrocorneal membranes following microsurgical operations of the anterior eye segment].

This report deals with light and electron microscopic findings in 47 corneal disks obtained in the course of keratoplasties performed for bullous keratopathy. Previous surgery had included intracapsular cataract extraction in 12 cases, intracapsular cataract extraction with implantation of iris-supported artificial lenses in 8, and keratoplasty for treatment of various conditions in 27 cases. The interval between the first operation and the keratoplasty was seven years on average in the first group and three years in the two other groups. In 34 out of 47 cases a retrocorneal membrane was found to be responsible for the keratopathy. Stromal fibroblasts as well as endothelial cells of the cornea may participate in the formation of the membrane. It is suspected that postoperative bullous keratopathy is always caused by a retrocorneal membrane, which is, however, sometimes only demonstrable by electron microscopy.

Cataract Extraction↗
PubMed1975

[Eye changes in diabetes mellitus].

In ophthalmological examinations on 820 diabetics in 32% a diabetic retinopathy I or II was found. The frequency of retinopathy correlates with the duration of diabetes. A glaucoma (4.8%) or an increased intra-ocular pressure, respectively, was statistically significantly more frequent in diabetics than in the total population. Among 714 patients with glaucoma about 17% of diabetics were found. Compared with the morbidity of diabetes of adequate age groups of the total population this is statistically significant. The intraocular pressure of patients with glaucoma and diabetes is therapeutically worse to be influenced than in patients with glaucoma without diabetes. They need a particularly attentive control and therapy. By means of electon-microscope examinations as a possible cause for the association of glaucoma and diabetes mellitus similar changes in the iridocorneal angle could be found in the two diseases.

Adult↗