摘要:

Clinical and histopathologic findings in a case of localized congenital fibromatosis of the lower eyelid are presented. The histological and electron-microscopic features point to the hamartomatous origin of this tumor with partial differentiation of its cells towards myofibroblasts. In spite of the diffusely infiltrating growth and the tendency for local recurrences, metastases have never been observed. Therefore, local excision is the appropriate therapy.

ISSN:0030-3755    

DOI:10.1159/000309215

出版商:S. Karger AG    

年代:1982

数据来源: Karger

摘要:

19 patients showing the features of diffuse retinal pigment epitheliopathy, as described by Zweng and Little, were studied. Diffuse retinal pigment epitheliopathy resembles both pigment epithelial detachment and central serous choriopathy, but can be differentiated by the following characteristic features: widespread distribution of small pigment epithelial detachments, little or no leakage visible on the fluorescence angiogram, extensive pigmentary changes, chronic course with exacerbations and remissions, and fair visual prognosis.

ISSN:0030-3755    

DOI:10.1159/000309216

出版商:S. Karger AG    

年代:1982

数据来源: Karger

摘要:

A three-dimensional study showed the existence of three vascular networks in the optic nerve: a peripheral, a periaxial and an axial one. The axial network, which was seen in 30% of the specimens, was formed by ramifying collateral branches from the pia mater of the optic nerve, but in the anterior part of the optic nerve there was an axial system which entirely depended on branches of the central retinal artery. This artery had important anastomoses with branches originating from the pia mater of the optic nerve and other collateral branches originating from the ophthalmic artery and its branches (the ciliary system).

ISSN:0030-3755    

DOI:10.1159/000309217

出版商:S. Karger AG    

年代:1982

数据来源: Karger

摘要:

The perception of polarized light by the human eye is facilitated with Savart’s double-plate polarimeter. This device converts polarized light into interference fringes from which criteria for the polarization sensitivity of the retinal hemisphere may be derived. The rather preliminary tests in this report covered the entire visual fíeld of the eye and led to the discovery of a nonuniform off-axis distribution of the retinal sensitivity to polarized white light. The results are reminiscent of similar effects in geometrical optics, where oblique light rays become slightly polarized upon the penetration of successive layers of translucent optical surfaces. Similar experiments with incident elliptically polarized rays suggest that the retina responds in the same nonuniform manner.

ISSN:0030-3755    

DOI:10.1159/000309218

出版商:S. Karger AG    

年代:1982

数据来源: Karger

摘要:

Primary oxalosis causes a flecked retina showing multiple small luminous spots at the posterior pole which can be seen by fluorescein angiography. In a young female patient who was observed for 4 years we did not find any deterioration. In 2 patients with secondary oxalosis, there was no evidence of fundus alterations.

ISSN:0030-3755    

DOI:10.1159/000309219

出版商:S. Karger AG    

年代:1982

数据来源: Karger

摘要:

7 cases of leukemic ophthalmopathy were clinicopathologically studied. The present findings were as follows: (1) ocular manifestations were exactly parallel with the involvement of the central nervous system, (2) visual disturbance seemed to be caused mainly by neoplastic infiltration into the parenchyma of the optic nerve, compression of nerve fibers due to neoplastic invasion in the septal tissues, and vascular disturbance, and (3) the mechanism of papilledema or disc swelling might be chiefly attributed to neoplastic infiltration into the optic nerve and/or the central nervous system.

ISSN:0030-3755    

DOI:10.1159/000309220

出版商:S. Karger AG    

年代:1982

数据来源: Karger

摘要:

Protein deficiency is one of the major morbid nutritional disorders of the developing world. Increased incidence of infection in a protein-deficient state is well documented in the literature. Structural alterations produced by isolated protein deficiency on the cornea are not clear hitherto. In this investigation, it has been shown that protein deficiency in rats results in thinning of the corneal epithelial cell layers and oedema of the epithelial, stromal and endothelial cells. The pathomechanisms are discussed.

ISSN:0030-3755    

DOI:10.1159/000309221

出版商:S. Karger AG    

年代:1982

数据来源: Karger

摘要:

Case report of a metastatic carcinoma of the conjunctiva originating in a cutaneous superficial spreading melanoma. Conjunctival metastasis as well as dissemination of skin melanomas to the eye are extremely rare events. As to our knowledge until now, there is no documentation of a cutaneous malignant melanoma metastatic to the conjunctiva.

ISSN:0030-3755    

DOI:10.1159/000309222

出版商:S. Karger AG    

年代:1982

数据来源: Karger

ISSN:0030-3755    

DOI:10.1159/000309223

出版商:S. Karger AG    

年代:1982

数据来源: Karger

ISSN:0030-3755    

DOI:10.1159/000309224

出版商:S. Karger AG    

年代:1982

数据来源: Karger