[Ocular pulse amplitude during manipulation of systemic perfusion parameters].

Abstract:

BACKGROUND:The mechanism for the control of choroidal perfusion is unclear. The present study was designed to investigate for the effect of standardized alteration of systemic perfusion parameters on choroidal hemodynamics in healthy volunteers. METHODS:Intraocular pressure (IOP; German abbreviation: IOD), Ocular Pulse Amplitude (OPA), systemic blood pressure, and pulse rate were measured, and ocular perfusion pressure was calculated in 14 otherwise non-smoking, healthy volunteers prior to and following exercise and smoking. RESULTS:Exercise significantly (sig., p < 0.05) increased pulse rate, systolic blood pressure and ocular perfusion pressure, while it sig. (p < 0.05) reduced IOP and diastolic blood pressure. However OPA was not sig. (p > 0.1) affected by changes in these parameters. Smoking sig. (p < 0.05) increased systolic blood pressure, diastolic blood pressure, pulse rate, and ocular perfusion pressure but did not sig. (p > 0.09) alter OPA. CONCLUSION:Despite affecting ocular and systemic perfusion parameters, exercise and smoking did not alter OPA, suggesting functional isolation i.e. autoregulation of the choroidal and/or ophthalmic artery circulation.

journal_name

Klin Monbl Augenheilkd

authors

Schmidt KG,von Rückmann A,Klingmüller V,Becker R,Pillunat LE,Mittag TW

doi

10.1055/s-2008-1034980

subject

Has Abstract

pub_date

1998-10-01 00:00:00

pages

241-4

issue

4

eissn

0023-2165

issn

1439-3999

journal_volume

213

pub_type

杂志文章
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    authors: Benedikt O

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    更新日期:1991-08-01 00:00:00

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    doi:

    authors: Sundmacher R

    更新日期:1977-11-01 00:00:00

  • [Information system in ophthalmology].

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    doi:10.1055/s-2008-1027722

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    更新日期:2008-12-01 00:00:00

  • [Eye injuries in squash].

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    authors: Kahle G,Dach T,Wollensak J

    更新日期:1993-09-01 00:00:00

  • [Therapy of parapapillary subretinal neovascularization].

    abstract::A large variety of diseases may cause a subretinal neovascularization originating from choroidal vessels. Four cases of parapillary choroidal neovascularisation are described, including neovascularization caused by senile and myopic degeneration, by drusen of the optic nerve head, and by angioid streaks. Obliteration ...

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    doi:10.1055/s-2008-1050277

    authors: Stur M

    更新日期:1988-10-01 00:00:00

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    pub_type: 杂志文章

    doi:

    authors: Bettelheim H,Grabner G

    更新日期:1978-12-01 00:00:00

  • [Some correlations between ultrasonographic and histopathologic findings in malignant melanoma of the choroid (author's transl)].

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    更新日期:1981-11-01 00:00:00

  • [Retinal dysplasia with hydrocephalus (author's transl)].

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    pub_type: 杂志文章

    doi:

    authors: Gerhard JP,Brini A,Willard D,Rohmer A,Messer J

    更新日期:1978-04-01 00:00:00

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    pub_type: 传,历史文章,杂志文章

    doi:

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    更新日期:1989-12-01 00:00:00

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    doi:

    authors: Barraquer J

    更新日期:1977-12-01 00:00:00

  • [Aldose-reductase inhibitors and cataract formation (author's transl)].

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    authors: Keller G,Leuenberger PM

    更新日期:1980-04-01 00:00:00

  • [Bilateral congenital microblepharon with ectropion and microphthalmus (author's transl)].

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    authors: Klauss V,Mnyalla ND,Dechant W,Riedel K

    更新日期:1981-11-01 00:00:00

  • [Sectorial racemose vascular malformation of the iris].

    abstract::A sectorial racemose vascular malformation of the iris in the left eye of a 32-year-old man is reported: a dilated episcleral artery disappeared in the limbal sclera; it reappeared in the chamber angle and after dichotomous branching, continued toward the pupil. The peripupillary capillaries of this sector were dilate...

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    doi:10.1055/s-2008-1054872

    authors: Stur M,Strasser G

    更新日期:1983-07-01 00:00:00

  • [Treatment of therapy resistant congenital postsaccular lacrimal duct stenosis with the flexible indwelling catheter].

    abstract::A flexible silicone-rubber suturamide retention tube, the procedure of intubation and special instruments for the repair of persistent congenital nasolacrimal duct obstructions are described. The results of the treatment of 8 infants are discussed. With the exception of one functional failure, the very good results ar...

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    doi:10.1055/s-2008-1054617

    authors: Struck HG,Fikentscher R

    更新日期:1984-10-01 00:00:00

  • [Bilateral vascular papillitis following ergotamin medication (author's transl)].

    abstract::A 36-years aged woman suffering from migraine used Ergosanol special-suppositories. An edema of the retina with star figure appeared in both eyes with only a few months distance. After putting away that drug visual acuity restituted completely in spite of a partial neuritic atrophy of the optic nerve in the first suff...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:

    authors: Wollensak J,Grajewski O

    更新日期:1978-11-01 00:00:00

  • [Analysis of Factors Influencing the Suitability of Donor Corneas in the LIONS Cornea Bank Saar-Lor-Lux, Trier/Westpfalz from 2006 to 2016].

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  • [A training device for intraocular surgery (author's transl)].

    abstract::Description of a new holder for experimental intraocular surgery on human autopsy eyes. Stability of shape and position of the experimental eyes is achieved by a vacuum surrounding the posterior segment. ...

    journal_title:Klinische Monatsblatter fur Augenheilkunde

    pub_type: 杂志文章

    doi:

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    更新日期:1976-03-01 00:00:00

  • The Assessment of Blood Flow Velocities in Retinal Collaterals in Diabetic Retinopathy.

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    更新日期:2019-04-01 00:00:00

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    更新日期:1993-07-01 00:00:00

  • [A convex-concave contact lens for vitreoretinal operations with the BIOM].

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    更新日期:1991-01-01 00:00:00

  • [Ultrastructural changes in keratoconus].

    abstract::In case of keratoconus the epithelial cells are also participating in the pathological processes. Their activity of producing basal membrane is increased. In the stroma four cell types are found; two of them are normal elements. The origin of the two pathological forms is unknown. They may represent as well vagrant ce...

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    pub_type: 杂志文章

    doi:

    authors: Süveges I

    更新日期:1979-03-01 00:00:00

  • [Echographic diagnosis of efferent lacrimal ducts with contrast media].

    abstract:BACKGROUND:Affections of the lacrimal drainage system are often seen by ophthalmologists. Inspection, palpation, diagnostic rinsing and sounding can distinguish anatomical stops before or after tear sac. For final diagnostics however more apparative examinations are necessary. The ultrasonic examination with contrast m...

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    更新日期:1997-01-01 00:00:00

  • [Variability of laminin isoforms in the limbus region of the eye].

    abstract:BACKGROUND:Cell adhesion in the limbal region is of outstanding importance for the regeneration of the corneal epithelium and for repair mechanisms after antiglaucomatous fistulating surgery. In the basement membranes cell adhesion is largely modified by the extracellular matrix protein laminin. The aim of our study wa...

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    authors: Dietlein TS,Jacobi PC,Paulsson M,Smyth N,Krieglstein GK

    更新日期:1997-09-01 00:00:00

  • [Therapy for actinomycosis in the lacrimal pathway].

    abstract::Canaliculitis is a rare disease of the lacrimal pathway, especially of the canaliculi. It is often not identified, therefore misdiagnosed and inadequately treated. It accounts 2 % of all lacrimal diseases. False diagnoses are usually conjunctivitis, blepharitis, dacryocystitis, hordeolum and chalazion. Besides viruses...

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    更新日期:2010-07-01 00:00:00

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    pub_type: 杂志文章

    doi:

    authors: Unterkircher K

    更新日期:1976-02-01 00:00:00