The doctor said that the general glasses box when cleaning first rinse with tap water, then soak for 10 minutes with boiled water (this is) professionals said, finally dried, or with detailer finally rinse again can. Small bottle of nursing liquid had better not often use, unless you're on a business trip or travel with convenient to use. If use the clean is also according to the method. Glasses box is once every three days cleaning, but detailer to change every day, if contact lenses there useless to three to five days in a nursing liquid.