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  • 1
    Electronic Resource
    Electronic Resource
    CONJUNCTIVAL MELANOMAS (1995)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of dermatology 34 (1995), S. 0 
    Details
    ISSN: 1365-4632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background. The nomenclature and the clinical and pathologic features of cutaneous and conjunctival melanomas are different. A comparison is made to familiarize dermatologists and ophthalmologists with these differences. Methods. Five cases of conjunctival malignant melanoma from December 1983 to December 1990 were reviewed. Results. The nomenclature of primary acquired melanosis is not used for cutaneous melanomas, and terms such as dysplasia and Clark's nevus are not used for conjunctival melanomas. Technical difficulties exist in orienting thin conjunctival tissues because of a tendency to curl during fixation, resulting in tangential sectioning and making a false diagnosis of a prognostically ominous pagetoid spread for an otherwise banal basilar hyperplastic pattern. Excision, cryotherapy, and rarely exenteration are the therapeutic measures in managing conjunctival melanomas; these have far more serious consequences for the patient compared with the excision of a skin melanoma. Conclusion. Differences exist in several aspects between melanomas located in the skin and the eye.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-4362.1995.tb03617.x
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  • 2
    Electronic Resource
    Electronic Resource
    Corneal electrode for recording electroretinograms in rats (1993)
    Springer
    Documenta ophthalmologica 83 (1993), S. 175-180 
    Details
    ISSN: 1573-2622
    Keywords: Corneal contact lens electrode ; Electroretinogram ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The corneal contact lens electrode, because of its convenience, has replaced the cotton-wick electrode for recording electroretinograms from patients and animals such as dogs, rabbits, and cats. The cotton-wick electrode, however, remains popular for rat electroretinogram measurements because small contact lens corneal electrodes that fit rat eyes are difficult to fabricate. We prepared corneal electrodes from disposable needles for use in recording electroretinograms from rats. The electrodes were readily prepared, were inexpensive, and were used successfully in six rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01206215
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Correlation between clinical, physical and histopathological characteristics of the cataractous lens (1997)
    Springer
    Graefe's archive for clinical and experimental ophthalmology 235 (1997), S. 745-748 
    Details
    ISSN: 1435-702X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract • Background: Preoperative evaluation of lcns opacity is used to prcdict surgical qualities of the lens arid the expected improvement in visual acuity. The prescrit study was conducted to ascertain whether preoperative clinical examination findings correlate with actual physical hardness of the lens arid its histopathologic microstructure. • Methods: Two classification systems for clinical evaluation of lcns opacity were compared: simple grading arid the Lens Opacities Classification System II (LOCS II). Physical hardness of 65 lens nuclei extracted manually was measured using a specially designed hydrostatic guillotine. Lens material was then studied by low-magnification inspection of stained nuclei arid by histo logic examination. • Results: Multiple observers' simple grading of lens opacities was almost identical to a single observer's LOCS II evaluation. Hardness of the lens demonstrated high correlation with grading of nuclear sclerosis, but not with cortical or subcapsular opacities. Preoperative visual acuity correlated with lens hardness only in eyes with visual acuity less than 6/24. The lamellar structure of the lens is maintained also in dense nuclear cataract. We did not identify microscopie parameters that correlated with clinical appearance or hardness of the lenses. • Conclusions: Preoperative clinical examination of the eye provides reliable information that can be used to predict the physical qualities of the cataractous 1ens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02332857
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    Paper (German National Licenses)
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