Josef Wollensak

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A 36-years aged woman suffering from migraine used Ergosanol special-suppositories. An edema of the retina with star figure appeared in both eyes with only a few months distance. After putting away that drug visual acuity restituted completely in spite of a partial neuritic atrophy of the optic nerve in the first suffering eye. If Ergotamin containing drugs(More)
In a prospective study the value of spiral CT for the detection and differential diagnosis of intraorbital masses was investigated. Thirty patients with various orbital diseases were examined with transverse spiral computed tomography. After performing two contiguous 1 mm spiral CT scans, coronal, parasagittal, and other reconstructions were obtained.(More)
The soluble proteins of a newborn human lens exhibit almost no non-tryptophan fluorescence. On aging, an increase in the fluorescence of all native crystallins is found except for gamma 2-crystallin. With formation of nuclear cataract, a further increase is seen for gamma 1-crystallin. The fluorophore, excitation 355 nm/emission 420 nm, is mainly associated(More)
BACKGROUND Retrobulbar anaesthesia in ocular surgery leads to a temporary sensory blockade of the nervus opticus. The purpose of this study was to investigate the effect and duration of this anaesthesia on the visual system and to find out whether there is any relation to the patient's age, oral premedication, time of oculopression and the axial length of(More)
It has been shown that inhibition of phosphodiesterase (PDE) or an increase in intracellular cyclic adenosine monophosphate (cAMP) can lower the intraocular pressure in mammalian eyes. The PDE inhibitor rolipram binds with high affinity to a cAMP-dependent PDE. In the following study, receptors for rolipram in the mammalian eye are determined by(More)
The photoablative products from human cadaver corneas treated with lasers were investigated using gas chromatography and mass spectroscopy. The photoablations were done separately with an excimer laser (193 nm) and with an erbium: yttrium aluminum garnet (Er:YAG) laser (2.94 microns). More than 20 different types of molecules with a molecular weight of(More)
The anatomic localization of the glucose transport protein in the eyes of rats, rabbits, baboons, marmosets, and humans with [3H]cytochalasin B using in vitro autoradiography showed high densities of glucose carrier densities. These densities were seen in the ciliary body, especially ciliary processes, iris, retina, and in some species, the trabecular(More)
The relations between bulb length and the refractive power of the cornea were investigated in 3358 eyes of nonselected patients. There was a negative correlation between corneal refraction and bulb length in the range 19 to 29 mm. However, the data do not support the recently advanced hypothesis that corneal curvature and bulb length are regulated by means(More)
In eyes in which posterior chamber lens implantation with sulcus fixation had been performed more than 2 years previously, the pathohistological findings showed that trophic changes can be caused in the area of the back surface of the iris and ciliary body. By means of fluorophotometric measurements, we studied the extent to which persistent disturbances in(More)