The effect of arterial pressure on the ocular pressure-volume relationship in the rabbit
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Cited by (47)
Corneoscleral stiffening increases IOP spike magnitudes during rapid microvolumetric change in the eye
2017, Experimental Eye ResearchCitation Excerpt :We have previously presented an infusion model to study the IOP spikes induced by rapid microvolumetric changes. This model was developed based on previous findings in rabbits showing that the postmortem eye has a pressure-volume relationship close to that of the live eye under normal mean arterial pressure (70–100 mmHg) (Kiel, 1995). Infusion in the donor eye thus provides a convenient model to simulate the live eye under normal blood pressure and analyze the corneoscleral effects on dynamic IOP under well-controlled conditions.
In-vivo corneal pulsation in relation to in-vivo intraocular pressure and corneal biomechanics assessed in-vitro. An animal pilot study
2017, Experimental Eye ResearchCitation Excerpt :Biomechanical properties of eye tissues play a key role in a pathogenesis and clinical course of many ocular conditions, such as, for example, keratoconus (Shah et al., 2007; Wolffsohn et al., 2012), age-related macular degeneration (Pallikaris et al., 2006) and glaucoma (Ebneter et al., 2009; Hommer et al., 2008), as well as in an accurate measurement of IOP (Hamilton and Pye, 2008; Kotecha, 2007; Liu and Roberts, 2005). To understand the pathogenesis of eye diseases related to elevated IOP and/or to abnormal ocular biomechanics, the relationship between pressure and volume in the eye has been widely investigated in animals (Kiel, 1995; Kling et al., 2010; Liu and He, 2009; Morris et al., 2013) and humans (Coudrillier et al., 2012; Dastiridou et al., 2009; Pallikaris et al., 2005; Silver and Geyer, 2000). This relationship is inherently associated with ocular rigidity (OR), that describes the resistance of eye walls to changes in intraocular volume (Dastiridou et al., 2009; Detorakis and Pallikaris, 2013).
Vascular factors in glaucoma
2015, Journal Francais d'OphtalmologieChapter 8 Aqueous Humor Dynamics II. Clinical Studies
2008, Current Topics in MembranesCitation Excerpt :The slope of the semilogarithmic ocular pressure–volume relationship was proposed by Friedenwald (1957) to be a quantitative measure of ocular rigidity. This relationship is strongly dependent on the systemic arterial pressure that affects choroidal blood flow and volume (Kiel, 1995). Ocular rigidity when measured by Schiotz tonometry was found to increase about 25% in older versus younger humans (Armaly, 1959; Gaasterland et al., 1978).
Chapter 9 Effects of Circulatory Events on Aqueous Humor Inflow and Intraocular Pressure
2008, Current Topics in MembranesCitation Excerpt :Here too, the effect of blood volume on IOP is evident. In the anesthetized rabbit, step increases in volume when arterial pressure is held at different levels give different P–V relationships, which are in turn different from that obtained in postmortem eyes (Fig. 7; Kiel, 1995). The original Friedenwald tables used in tonometry and tonography were based on enucleated eyes refilled with saline to achieve a normal IOP.