[Autoregulation in ischemia of the optic nerve in the human].

Abstract:

BACKGROUND:Autoregulation is defined as the maintenance of constant blood flow in a vascular system in spite of changes in perfusion pressure (PPm). MATERIALS AND METHODS:PPm was decreased by increasing the intraocular pressure (IOP) with a suction cup and optic nerve blood flow was measured with the laser Doppler flowmetry technique (LDF) in 9 normal volunteers. RESULTS:The blood flow was autoregulated down to a PPm of 13 mm Hg (IOP = 47 mm Hg). CONCLUSIONS:These results confirm previous studies in cats and monkeys. The mechanism of autoregulation is probably a decrease in resistance due to capillary recruitment.

journal_name

Klin Monbl Augenheilkd

authors

Titzé P,Hero M,Petrig BL,Cranstoun SD,Riva CE

subject

Has Abstract

pub_date

1997-05-01 00:00:00

pages

308-9

issue

5

eissn

0023-2165

issn

1439-3999

journal_volume

210

pub_type

杂志文章
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    authors: Becker H,Schmitz J

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    authors: Pournaras C,Tsacopoulos M

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    doi:

    authors: Moro F

    更新日期:1977-12-01 00:00:00

  • [Ophthalmoscopic findings in 3 patients with panarteritis nodosa and review of the literature].

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    更新日期:2001-01-01 00:00:00

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    authors: Elahi S,Lages V,Jeannin B,Herbort CP

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  • [Brown discoid deposits in the lens following long-term administration of diazepam (Valium)].

    abstract::In two patients (a married couple) the oral intake of 5 mg diazepam (Valium) per day (sometimes even more) over several years led to a homogeneous brown opacification of the lens under the anterior capsule over an area corresponding to the mean pupillary diameter. The deposit is obviously irreversible. ...

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    doi:10.1055/s-2008-1051023

    authors: Pau H

    更新日期:1985-09-01 00:00:00

  • [Incidence of postoperative bacterial infections after planned intraocular interventions].

    abstract::Between August 1982 and August 1984 3059 intraocular operations were performed with topical prophylactic antibiotics. Results of conjunctival cultures did not influence the surgical schedule. 8179 intraocular operations were performed between September 1984 and August 1988. An intraocular operation was postponed until...

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    更新日期:2015-08-01 00:00:00

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    更新日期:2003-04-01 00:00:00

  • [Atopic keratoconjunctivitis].

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    doi:

    authors: Prammer G

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  • [The role of nitric oxide in retinal vasomotor regulation].

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    更新日期:1994-05-01 00:00:00

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    authors: Egerer I,Drobec P

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    authors: Prünte-Glowazki A

    更新日期:1990-05-01 00:00:00

  • [A long-term study of morphological and functional developments after central serous chorioretinitis].

    abstract::Of 163 patients suffering from central serous chorioretinopathy, 40 who had been treated by light coagulation and 40 who had been treated conservatively were selected at random. They were examined at intervals averaging 5.7 and 4.6 years respectively after the initial treatment. Central visual acuity, central visual f...

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  • [Acquired temporary night blindness in vitamin A and zinc deficiency in anorexia nervosa nine years after kidney transplantation].

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  • [Ocular involvement in Whipple disease].

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    更新日期:1994-06-01 00:00:00

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    更新日期:2002-04-01 00:00:00

  • [Ophthalmological experiences with automobile drivers with inadequate vision].

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    更新日期:1984-08-01 00:00:00

  • [Special sound probe for foreign body localisation (author's transl)].

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    doi:

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  • [Local anesthetic effect and subjective tolerance of a single dose of 0.25% bupranolol in probands with healthy eyes. Randomized parallel double-blind study].

    abstract::.25% Bupranolol in an oily solution decreases corneal sensitivity statistically significant from the 3. to the 15. minute after the application. The maximum of decrease is found between the 6. and the 15. minute in contrast to beta-blockers in aqueous solution (1.-3. minute). The topical subjective compatibility of 0....

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  • [Echographic findings following intravitreous silicone injections].

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