Abstract
The most common method currently used to store and maintain hydrophilic gel contact lenses is in normal (0.9%) saline solution, which is made up nightly by the patient. This study was designed to evaluate the effects of saline solutions of various compositions on the base curve, power, diameter, thickness and light transmission of spin-cast hydrogel contact lenses. Nine randomly selected Bausch & Lomb Soflens™Contact Lenses were stored in these various solutions for 40 days. The major changes found were in the base curve and light transmission of the lenses stored in hypertonic solutions and solutions made with tap water. The dimensions of the lens stored in normal (0.9%) saline made with distilled water changed the least. - These findings are similar to those reported for lathe-cut hydrophilic contact lenses and show the importance of storing hydrogel lenses in properly made normal saline solution.
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Schedule a callMore From: American journal of optometry and physiological optics
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