The choroid is richly innervated by parasympathetic, sympathetic and trigeminal sensory
nerve fibers that regulate choroidal blood flow in birds and mammals, and presumably other …

Regional influences of parasympathetic and sympathetic innervation on choroidal blood
flow were investigated in anesthetized rats. Parasympathetic pterygopalatine neurons were …

Previous studies show that the choroid can maintain its blood flow despite changes in
perfusion pressure, behaviour possibly mediated by an autoregulatory mechanism …

A major physiologic role for the high flow choroidal vasculature is to help maintain a stable
temperature in the macula. The choroidal vasculature modulates tissue temperature in the …

Earlier studies on the control of retinal and choroidal blood flow are reviewed and some
recent observations on the effects of light on retinal metabolism and retinal and choroidal …

Arteries and arterioles of the choroid are surrounded by numerous nerve fibers staining for
nitric oxide synthase (NOS) and vasoactive intestinal peptide (VIP). In most mammalian eyes …

The choroid of the eye is primarily a vascular structure supplying the outer retina. It has
several unusual features: It contains large membrane-lined lacunae, which, at least in birds …

Purpose: To review control mechanisms for blood flow in the choroid, propose a system by
which venous outflow is controlled by a Starling resistor, and propose an explanation for the …

The autonomic nervous system influences numerous ocular functions. It does this by way of
parasympathetic innervation from postganglionic fibers that originate from neurons in the …

The retina receives its nutrients from two separate circulations: retinal and choroidal
circulation. This short overview describes the determinants in the regulation of these …