They can be used with multipurpose solution as well, as they will get all of the protein buildup off your contacts. To use daily protein remover products, simply add your normal solution to your case, then add a drop or two of the remover to your solution and put your contacts in. There are other products you can use with your contacts, although the above are the most common and the most popular. Soft contacts can have either a low, which is less than 50 percent moisture, or a high moisture content, which is more than 50 percent. Rigid or hard contacts on the other hand, are much harder in material and are considered to be gas permeable. Wearing schedules Hard contact lenses can last for months, possibly even years before they need to be replaced. They are comfortable, don t hang off your face, and above all - they are affordable. Among the many types of contact lenses available on the market, are the extended wear contacts. There are many benefits to these contact lenses, which we will go over. Extended wear contact lenses are convenient, possibly even more so than the other types of contacts. When you put your contacts in, you should try and put them in using the same order each and every time. This way, you ll know which contact goes in first and you won t get them mixed up. Before you put them in, you should always inspect them each and every time to make sure they aren t torn or damaged. Before you purchase a pair of hard or rigid contacts, you should know how to take care of them and how to clean them. Hard contacts differ from soft contacts, as the cleaning process is very different. When you purchase your contacts you should also purchase your cleaning solution. Your cleaner is very important, as you must have it with hard contacts. The first thing you ll notice about the Acuvue advance lenses is the addition of Hydroclear, made by Johnson and Johnson. Although other types of Acuvue lenses now offer Hydroclear, the advance lenses were the first. Hydraclear is a break through in contact lens technology, perfect for those who have problems with their lenses drying out.