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  • 1
    ISSN: 1432-0428
    Schlagwort(e): IDDM ; nerve conduction velocity ; neuropathy ; intensified insulin treatment
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary We have investigated the effect of long-term strict glycaemic control on peripheral and autonomic nerve function in 45 IDDM patients (age 18–42 years, diabetes duration 7–23 years) without clinical signs of neuropathy or other neurological disease. They were randomly assigned to treatment either with continuous insulin infusion, multiple injections (4–6 times daily), or conventional treatment (twice daily) for 4 years and followed prospectively for 8 years. Motor and sensory nerve conduction velocities were measured at the start and after 8 years. Autonomic nerve function tests were performed only once, after 8 years. A significant reduction of nerve conduction velocity was observed during 8 years in patients with mean HbA1 more than 10% (n=12, group mean 10.9%, range 10.1–13.2%) compared to patients with HbA1 less than 10% (n=33, group mean 9.0%, range 7.5–9.9%). Change of motor nerve conduction velocity in the peroneal nerve was: −4.8±4.9 (SD) vs −2.2±5.3 m/s (p〈0.01). Change of motor nerve conduction velocity in the posterior tibial nerve was: −6.8±5.7 vs −3.9±5.1 m/s (p〈0.05). No significant changes were observed in the ulnar nerve. Change of sensoric nerve conduction velocity in the sural nerve was: −8.9±8.0 vs −4.6±5.3 m/s (p〈0.05). Multiple regression analysis showed that a change in HbA1 of 1% resulted in a 1.3 m/s change in nerve conduction velocity during 8 years. A significantly lowered heart-rate variation during deep breathing (p〈0.05) and heart-rate response to standing (p〈0.01) was found in patients with HbA1 more than 10% compared to patients with HbA1 less than 10%. This study confirms that the long-term lowering of blood glucose retards the deterioration in nerve conduction velocity observed in the diabetic nerve.
    Materialart: Digitale Medien
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  • 2
    ISSN: 1432-0428
    Schlagwort(e): Key words IDDM, nerve conduction velocity, neuropathy, intensified insulin treatment.
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary We have investigated the effect of long-term strict glycaemic control on peripheral and autonomic nerve function in 45 IDDM patients (age 18–42 years, diabetes duration 7–23 years) without clinical signs of neuropathy or other neurological disease. They were randomly assigned to treatment either with continuous insulin infusion, multiple injections (4–6 times daily), or conventional treatment (twice daily) for 4 years and followed prospectively for 8 years. Motor and sensory nerve conduction velocities were measured at the start and after 8 years. Autonomic nerve function tests were performed only once, after 8 years. A significant reduction of nerve conduction velocity was observed during 8 years in patients with mean HbA1 more than 10 % (n =12, group mean 10.9 %, range 10.1–13.2 %) compared to patients with HbA1 less than 10 % (n =33, group mean 9.0 %, range 7.5–9.9 %). Change of motor nerve conduction velocity in the peroneal nerve was: –4.8±4.9 (SD) vs –2.2±5.3 m/s (p〈0.01). Change of motor nerve conduction velocity in the posterior tibial nerve was: –6.8±5.7 vs –3.9±5.1 m/s (p〈0.05). No significant changes were observed in the ulnar nerve. Change of sensoric nerve conduction velocity in the sural nerve was: –8.9±8.0 vs –4.6±5.3 m/s (p〈0.05). Multiple regression analysis showed that a change in HbA1 of 1 % resulted in a 1.3 m/s change in nerve conduction velocity during 8 years. A significantly lowered heart-rate variation during deep breathing (p〈0.05) and heart-rate response to standing (p〈0.01) was found in patients with HbA1 more than 10 % compared to patients with HbA1 less than 10 %. This study confirms that the long-term lowering of blood glucose retards the deterioration in nerve conduction velocity observed in the diabetic nerve. [Diabetologia (1994) 37: 579–584]
    Materialart: Digitale Medien
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    Documenta ophthalmologica 53 (1982), S. 295-302 
    ISSN: 1573-2622
    Schlagwort(e): Competer ; automatic perimetry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We evaluated the perimetric concept and the technical construction of the Competer. The testprocedures of the Competer are well conceived. The screening-strategy may fail in cases of central islands or large central defects. The interpretation of the visual field results is not easy, due to the use of a numerical print-out which, in addition, is different for screening and threshold examinations. The mechanical and electrical construction of the instrument could be improved. In the accompanying paper (Graniewski et al., 1982) results are presented of a comparative clinical evaluation.
    Materialart: Digitale Medien
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  • 4
    Digitale Medien
    Digitale Medien
    Springer
    Documenta ophthalmologica 53 (1982), S. 311-320 
    ISSN: 1573-2622
    Schlagwort(e): Fieldmaster 101 PR ; automatic perimetry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The perimetric concept and the technical construction of the Fieldmaster 101 PR were evaluated. 64 eyes of patients and 10 normal subjects were examined. We conclude that the Fieldmaster is a well-engineered instrument, using an inefficient test strategy. The presentation of visual field results could be impoved. Clinical results of the patient examinations are presented.
    Materialart: Digitale Medien
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  • 5
    Digitale Medien
    Digitale Medien
    Springer
    Documenta ophthalmologica 53 (1982), S. 321-330 
    ISSN: 1573-2622
    Schlagwort(e): Ocuplot ; automatic perimetry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The perimetric concept and the technical construction of the Ocuplot were evaluated. The mechanical and electrical construction of the instrument we tested was poor. The manufacturer claims improvements in newer specimens. We examined 87 eyes of patients and normal subjects with the Ocuplot and learned that the test-strategy is not efficient and yields a high proportion of false positive results. Clinical results of the patient-examinations are presented.
    Materialart: Digitale Medien
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    Documenta ophthalmologica 61 (1986), S. 327-333 
    ISSN: 1573-2622
    Schlagwort(e): stray light ; glare ; contrast sensitivity ; cataract ; corneal dystrophy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract For healthy eyes intraocular light scatter was investigated several decades ago. For pathological eyes, however, little is known. As clinical test several techniques have been proposed but none has gained general acceptance. A disadvantage of these tests was that quantities were estimated that related only indirectly to the amount of light scatter. We propose a method that gives a direct estimate of the light scatter. We studied patients with cataract, corneal dystrophy, iris and fundus hypopigmentation, etc. A remarkable finding was that visual acuity correlates rather weakly with the amount of scatter. Since, however, the amount of scatter causes a considerable loss of visual function, the results show that for these patients the visual acuity test gives a rather limited impression of their visual handicap. More attention to the problems associated with intraocular light scatter is needed.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Documenta ophthalmologica 75 (1990), S. 239-246 
    ISSN: 1573-2622
    Schlagwort(e): Diaphany ; translucency ; straylight ; glare ; light scatter ; X-linked megalocornea ; contrast sensitivity ; visual optics
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Intraocular straylight can be measured, in clinical as well as normal cases, by the direct compensation technique. Intraocular straylight is known to originate from the cornea, lens and fundus. We have studied a fourth source: the translucency of the iris and surrounding ocular wall. For lightly-pigmented normal eyes this source proved to be important. In the present paper results are reported from a patient with X-linked megalocornea. He had diaphany of the iris, as is common in these patients, and photophobic complaints. Quantitative measurements showed that the translucency was much increased so that the intraocular straylight was far above the normal level.
    Materialart: Digitale Medien
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    Documenta ophthalmologica 75 (1990), S. 303-314 
    ISSN: 1573-2622
    Schlagwort(e): Blue-yellow perimetry ; general sensitivity loss ; corrected sensitivity loss ; cataract
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A perimetric method using blue stimuli on a yellow background was compared with perimetry using white stimulion on a white background as a method of detecting glaucomatous damage. Meridian perimetry was used with an adapted Tübinger perimeter. The difference between the blue-on-yellow meridian and the white-on-white meridian was subdivided into two parts: the general blue sensitivity loss (GBSL), probably due to optical factors, and the corrected blue sensitivity loss (CBSL), probably due to glaucoma. Nine normals, fourteen primary open angle glaucoma (POAG) patients and nine ocular hypertensives (OHT) were tested. All POAG patients and some of the OHT group showed higher CBSL values than the controls. The blue-yellow meridian showed broader and deeper defects than the white-white meridian in all of the POAG group; some of the OHT group had defects in the blue-yellow meridian that were not present in the white-white meridian.In conclusion, blue on yellow perimetry shows promise as a method for more sensitive detection of early glaucomatous damage.
    Materialart: Digitale Medien
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  • 9
    Digitale Medien
    Digitale Medien
    Springer
    Documenta ophthalmologica 78 (1991), S. 177-181 
    ISSN: 1573-2622
    Schlagwort(e): Glare ; straylight ; contrast sensitivity ; light scatter ; disability glare ; discomfort glare
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract An overview is given of the basic phenomena that may lead to glare complaints in patients. Prominent among them is increased intraocular straylight; this can be measured. Other causes may include: increased sensitivity to normal straylight, the length of (increased) light and dark adaptation times, (small angle) neuronal lateral interaction. Distinction must be made between disability glare and discomfort glare. Tests have been proposed to determine glare-induced loss of various visual functions. Often the test results are thought to be directly related to straylight but this may be untrue.
    Materialart: Digitale Medien
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    Documenta ophthalmologica 82 (1992), S. 29-31 
    ISSN: 1573-2622
    Schlagwort(e): Cornea ; Lubricant ; Ocular ; Optical ; Straylight ; Tear
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The question was raised whether ocular lubricants or artificial tears might have adverse effects on optical clarity of the eye. Eight current commercial products were tested on five young subjects, using the Straylight Meter. No adverse effects were found.
    Materialart: Digitale Medien
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