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Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense direct or reflected sunlight) or artificial (e.g. the electric arc during welding) sources.
It is usually caused by allergies or viral infections, often inciting excessive eye rubbing. Chemosis is also included in the Chandler Classification system of orbital infections. If chemosis has occurred due to excessive rubbing of the eye, the first aid to be given is a cold water wash for eyes. [citation needed] Other causes of chemosis include:
This process occurs when the paint is applied to an object through the use of an air-pressurized spray gun. The air gun has a nozzle, paint basin, and air compressor. When the trigger is pressed the paint mixes with the compressed air stream and is released in a fine spray. [5] Types of nozzles and sprays
When the skin thaws, pain and severe discomfort can occur in the affected area. [7] There may be a smell of aerosol products such as deodorant around the affected area, the injury may itch or be painful, the skin may freeze and become hardened, blisters may form on the area, and the flesh can become red and swollen.
In vacuum applications, a cold trap is a device that condenses all vapors except the permanent gases (hydrogen, oxygen, and nitrogen) into a liquid or solid. [ 2 ] [ needs update ] The most common objective is to prevent vapors being evacuated from an experiment from entering a vacuum pump where they would condense and contaminate it.
Rodriguez claimed she started experiencing eye irritation when she exited the venue following the nearly 80-minute speech. ... it hurts a lot to open my eyes. I have this cold cloth I put on and ...
P337: If eye irritation persists: P337+P313: If eye irritation persists: Get medical advice/attention. P338: Remove contact lenses if present and easy to do. Continue rinsing. P340: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P341: If breathing is difficult, remove victim to fresh air and keep at rest in ...
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