Glaucoma is an eye disease which can affect both humans, dogs and many other mammals. It is characterised by optic nerve damage and loss of peripheral vision. In the vast majority of Glaucoma conditions the nerve damage is caused by rising pressure within the eye, so called intraocular pressure (IOP).
Magnetic resonance imaging or MRI is a medical imaging technique which can be utilised to visualise internal structures with relatively great detail. Magnetic resonance scanners generate strong magnetic fields which pulse and cause individual nuclei of atoms within the body to spin. Gradients in the strength of the magnetic field causes different nuclei to spin at different speeds.
The primary effect of opioids is to temporarily remove pain when used at therapeutic levels; this is done by binding to opioid receptors found primarily in the central nervous system (some receptors are found in the gastrointestinal tract). When larger doses are given, opioids can induce beneficial and non-beneficial pharmacological effects such as sedation, [...]
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