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  • Digital subtraction macrodacryocystography (DSMD)  (1)
  • blood-retinal barrier  (1)
  • infrared spectrum  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Morphological and/or functional imagiology diagnosis of epiphora (1993)
    Springer
    Documenta ophthalmologica 83 (1993), S. 337-348 
    Details
    ISSN: 1573-2622
    Keywords: Conventional subtraction macrodacryocystopraphy (CSMD) ; Digital subtraction macrodacryocystography (DSMD) ; Epiphora ; Lacrimal ducts (LD) ; Sequential dacryoscyntygraphy (SD)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Several tests and examinations are necessary for an accurate diagnosis of disorders of the lacrimal drainage system. The AA studied 100 patients with epiphora, divided in two groups. Forty patients, first group (I), aged between 4 and 78 years old (mean age 47.8 ± 9.6 years), were examined using the classical tests for the study of epiphora, sequential dacryoscintigraphy (SD) and conventional subtraction macrodacryocystrography (CSMD). In the second group (II), 60 patients (aged 45.5 ± 8.7 years) were studied using the classical tests and by digital subtraction macrodacryocystography (DSMD). The results showed that when functional epiphora is present, there is no difference between a simple clinical approach and sequential dacryoscintigraphy. However, when information is needed regarding choice of surgical approach, DSMD appears to give the best results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01204336
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of calcium dobesilate on the blood-retinal barrier in early diabetic retinopathy (1990)
    Springer
    International ophthalmology 14 (1990), S. 81-88 
    Details
    ISSN: 1573-2630
    Keywords: calcium dobesilate ; diabetic retinopathy ; blood-retinal barrier ; vitreous fluorophotometry ; penetration ratio
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of calcium dobesilate on the alteration of the blood-retinal barrier was studied in 41 adult-onset, non-insulin dependent diabetic patients with minimal or no retinopathy, randomly assigned to receive either oral calcium dobesilate (1000 mg twice daily) or a placebo for 12 months. The posterior vitreous value and the penetration ratio, determined by vitreous fluorophotometry, reflected stabilisation of blood-retinal barrier permeability in the calcium dobesilate patients and deterioration of blood retinal barrier in those given placebo. During the relatively short period of the study, one year, no significant change in microaneurysm and capillary closure gradings was observed. No side effects were associated with calcium dobesilate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00154206
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Spectrophotometric analysis of sodium fluorescein aqueous solutions. Determination of molar absorption coefficient (1991)
    Springer
    International ophthalmology 15 (1991), S. 321-326 
    Details
    ISSN: 1573-2630
    Keywords: absorption spectrum ; calibration ; fluorometry ; infrared spectrum ; sodium fluorescein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The usefulness of sodium fluorescein (SF) and related physical parameters were analysed. Two factors that may affect the molar absorption coefficient (ɛ) of this compound were the presence of impurities and the pH of the solution. As discrepant values can be found in the literature for that coefficient, a purification technique was used and SF quantification was performed according to sodium concentration determined by atomic absorption spectrophotometry. The molar absorption coefficient of the SF solution in phosphate buffer pH 7.4 was determined. To study the influence of pH on ɛ determination, absorption spectra at pH 1, 3, 5, and 10 were also analysed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00128951
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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