PMID: 19920672Jun 1, 1995Paper

Reproducibility of pulsatile ocular blood flow measurements

Journal of Glaucoma
Z Butt, C Oʼbrien

Abstract

Langham adapted the pneumotonometer to provide a waveform of the ocular pulse and using the heart rate derived values for pulsatile ocular blood flow. We have used a new pneumotonometer linked to an ocular blood flow system that has addressed several of the problems encountered with the Langham technique. The reproducibility of this new method was assessed by measuring pulsatile ocular blood flow (mul/min) five times on one eye of 20 normal healthy volunteers (mean age 40 years; range 26-62) at one examination session. The test was conducted in the sitting position with the pneumotonometer probe mounted on a slit-lamp microscope. The mean pulsatile ocular blood flow was 633 +/- 180 mu/min. Statistical analysis using the intraclass correlation method showed there were no significant differences due to sessions for five recordings (p = 0.15) or, after excluding the two most extreme values, for three recordings (p = 0.49). There was no correlation noted between pulsatile ocular blood flow and age in a larger group (n = 49) of normal volunteers (mean age 61 years; range 26-72). We conclude that pulsatile ocular blood flow measurements with this new instrument are reproducible and may be applied to blood flow studies in ocular hyper...Continue Reading

Citations

Feb 14, 2004·Ultrasound in Medicine & Biology·Andrew WalkerPer Ask
Dec 4, 2003·American Journal of Ophthalmology·Jan KerrColm O'Brien
Oct 25, 2003·Progress in Retinal and Eye Research·Vital P CostaLuis Metzner Serra
Mar 22, 2002·Acta Ophthalmologica Scandinavica·Gerasimos T GeorgopoulosGuenter K Krieglstein
Jun 14, 2003·Journal of Ocular Pharmacology and Therapeutics : the Official Journal of the Association for Ocular Pharmacology and Therapeutics·Harish C AgarwalRamanjit Sihota
Oct 9, 2002·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Andrew KC LamChi-Ho To
Feb 28, 2007·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Bibianna S Y Yu, Andrew K C Lam
Jun 1, 2013·International Ophthalmology·Kirti Singh, Savleen Kaur
Aug 29, 2001·Journal of Cataract and Refractive Surgery·P PiankaO Geyer
Aug 2, 2002·Progress in Retinal and Eye Research·Josef FlammerEinar Stefánsson
Nov 28, 2007·Acta Ophthalmologica·Hemma ReschGuido T Dorner
Oct 26, 2007·Clinical & Experimental Optometry : Journal of the Australian Optometrical Association·Rhianon L PerrottRachel V North
Apr 29, 1998·Journal of the American Geriatrics Society·S DallingerL Schmetterer
Apr 4, 2017·Korean Journal of Ophthalmology : KJO·Duck Jin HwangHyeong Gon Yu
Jun 17, 2003·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Emma L PriceNorman F Button
Oct 13, 2015·Korean Journal of Ophthalmology : KJO·Young Seong Yang, Jae Woong Koh
Jun 19, 2004·Eye·Chieh-Chih TsaiYau-Huei Wei

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