There are a variety of contact solutions available. Ultimately, the biggest factor that is going to influence the kind of contact solution you buy is the type of contacts you wear. Hard and soft lenses require different methods of cleaning; extended wear and disposable lenses also require cleaning specific to their designs.
For typical soft contacts that are put in and taken out daily, an all-in-one solution used for cleaning, rinsing and storage is usually adequate unless the contact manufacturer says otherwise. For hard contacts and extended-wear contacts, the increased buildup of protein on the contact surface necessitates enzymatic cleaning every so often. Enzymatic cleaning is slightly more complicated; contacts must be fitted into a specially fashioned bottle, shaken thoroughly and then left to sit for a few hours to make sure the enzymes do a good job of getting rid of debris stuck to the contacts. It's important to keep track of the bottles when using an enzymatic cleanser. Before you can put contacts that have been cleaned in this manner back into your eyes, you must rinse them thoroughly with a nonirritating solution that will not harm your eyes. Many companies make this distinction easy for you by using a red tip on the bottle of enzymatic cleanser. Nevertheless, if you do happen to rinse your contacts in enzymatic cleanser, your eyes will let you know as soon as you try to put the contacts into them.
There are a lot of options out there for contact solutions. While most formulas are relatively similar, some people claim to notice a marked difference in one brand over another. The contact solution itself is not nearly as important as consistent, good overall care for your contacts.
What to Look for
When shopping for contact solution, take into account the different types of solutions available for different types of lenses. If the manufacturer recommends an all-in-one solution, it is likely that almost any one will do. Enzymatic cleansers are similarly generic: some people may claim to feel a difference from one brand to another, but it is purely a matter of personal choice. When selecting your particular bottle of contact solution, make sure the packaging is intact and has not been tampered with. If you have any doubts about the integrity of the solution's packaging, do not put it in your eyes.
Common Pitfalls
Unless you have extremely sensitive eyes that only respond well to the most expensive contact solution, there is no real reason not to buy the store-brand or generic solution. Be sure to get the items required for proper care of your specific contacts.
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