What is Eye Stroke? Anterior Ischemic Optic Neuropathy (AION) occurs when there is insufficient blood supply to the optic nerve, resulting in loss of vision. There are two types of AION: Nonarteritic Anterior Ischemic Optic Neuropathy (NAION) and Arteritic Anterior Ischemic Optic Neuropathy (AAION).
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Evaporative air conditioning uses evaporation to cool the air. In an evaporative cooler, such as Breezair, a pump circulates water from the reservoir on to a cooling pad, which in turn becomes very wet.A fan draws air from outside the unit through the moistened pad.As it passes through the pad the air is cooled by evaporation.hen considering water evaporating into air, the wet-bulb temperature, as compared to the air's dry-bulb temperature, is a measure of the potential for evaporative cooling. The dry and wet bulb temperature can be used to calculate the relative humidity.