How do I know when to dispose of disposable contact lenses? They seem to be OK longer than I expected. As a basic rule, never sleep in lenses more than one week, or less, as prescribed by your doctor. Dispose of them as recommended. Daily wear users should replace their lenses as recommended by their eye care practitioner. Wearing your lenses past the recommended replacement interval may result in serious complications affecting your eye health and vision. Disposable lenses are meant to be discarded at regular intervals.

My eyes get dry. What kind of eye drops can I use? You should use products specifically designed for use with the type of lens you are wearing. Saline solution can be used with any contact lens. The re-wetting drops for RGP lenses are far more effective than saline and special soft lens lubricating drops also work well. Drink more water to help with increasing your natural tear production. Unless directed to do so by your eye doctor, do not use medicated eye drops, including "get the red out" brands with contact lenses. Soft lenses may concentrate the drug and alter the effect. The lens itself may be damaged.

I used to make my own saline. Is there a problem with that? Yes. Home prepared saline is not sterile and there is the risk of bacterial or parasitic contamination. Although extremely rare, the resulting infection can be so damaging that it simply is not worth the risk.

There are so many solutions out there, how do I know which is best? Rule one: Do not "mix and match" contact lens products. The chemicals used within any one care system are designed to be compatible. Using alternative products could create chemical reactions which could damage or discolor the lenses, irritate your eyes, or reduce the desired effect of the product. Unless you're a chemist, don't do it. Rule two: When it comes to saline, you have a choice between unpreserved and preserved products. Unpreserved is preferable, and if your system requires unpreserved, that's what you use. Within each of those categories (preserved or unpreserved), choose the least expensive. Saline is saline: salt in sterile, distilled water with a few buffers added.

Note: Be careful to keep your lens care products clean. Do not touch the tip of the bottles to any surface. If you do, quickly discard the next few drops. Always close the container with the original top immediately after use.

We hope our Contact Lens FAQ answered your questions. If so, please check out our online contact lens catalog . If you still have questions, please call 1-800-248-9427 and speak to one our friendly opticians.

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