wetting solution


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wetting solution 

A solution that (1) transforms a hydrophobic surface into a hydrophilic one; (2) acts as a lubricant; (3) helps to clean the surface; (4) helps to prevent contamination of the lens while being inserted. It is spread on both surfaces of a rigid contact lens prior to insertion. However, the effect of a wetting solution only lasts a short time because it is quickly removed by the tear layer. A common wetting agent is polyvinyl alcohol, which also has viscosity building properties. See enzyme; artificial tears.
References in periodicals archive ?
According to the US Centers for Disease Control and Prevention, 99% of people who wear contact lenses have engaged in at least one "contact lens hygiene risk behaviour" - from sleeping, showering and swimming in their lenses, to using saliva or water as a wetting solution.
offer protection risk sight Look after your lenses According to the US Centers for Disease Control and Prevention, 99 per cent of people who wear contact lenses have engaged in at least one "contact lens hygiene risk behaviour" - from sleeping, showering and swimming in their lenses, to using saliva or water as a wetting solution. Bad habits like these can result in corneal ulcers, severe pain and vision loss.
it is composed of 3 positions: - item 1: primary uv inks, - item 2: uv pantone inks, - item 3: dynacol ac 320 wetting solution.
VersaWrap consists of a sheet and a wetting solution.
Total Solution, a cleaning and wetting solution for hard contact lenses, has been marketed in Europe and the Middle East.
RISKS: These can include rare but potentially fatal complications such as pulmonary oedema ( a collection of fluid in the lungs that may occur if too much liquid is administered ( or lidocaine toxicity, which can happen if the anaesthetist uses too much lidocaine anaesthetic in the wetting solution.
These changes can have considerable influence on the application of the wetting solution on the printing form and on the correct water ink balance during the printing process.
If the processing conditions of the printing form are not satisfactory it is supposed that the wetting solution can aggressively act on the surface of the [Al.sub.2][O.sub.3].
If the color goes to the bottom, it's too thick; add more water and wetting solution. If the circle spreads too far, becoming diffuse and shadowy, add more paint.
In addition to wetting solutions, blunt-tip small cannulas were appreciated to bypass vital structures such as nerves and blood vessels.
In terms of new investments, O-PAC recently upgraded its laboratory for the application of wetting solutions, including new, state-of-the-art facilities for water purification.