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  The following basic information about contact lens wear and NIGHT & DAY lenses is provided for you by CIBA Vision. If you are interested in NIGHT & DAY lenses, please see a licensed eyecare professional. Based on your individual needs, your eyecare professional will determine if NIGHT & DAY lenses are right for you and how many days and nights you can wear them. What are NIGHT & DAY soft contact lenses?NIGHT & DAY are soft contact lenses made of lotrafilcon A, a fluoro-silicone material that contains about 24% water. This new lens material provides a high level of oxygen to your eyes and has been surface-treated to wet with your tears. How are NIGHT & DAY soft contact lenses used?The lenses are worn on the cornea (front part of the eye) and used to correct vision by refocusing light rays onto the retina (back part of the eye). The lenses may be used to correct nearsightedness (myopia) or farsightedness (hyperopia). They may be prescribed for:
Can everyone wear NIGHT & DAY breathable contact lenses for 30 nights of continuous wear?Not everyone can reach the maximum wear time of 30 continuous nights. During the U.S. clinical study, 1,000 of the 1,300 eyes dispensed completed the full year of lens wear, with 67% wearing the lens between 22 to 30 days. Your eyecare professional may recommend a shorter wearing time depending on your individual needs, and you should always adhere to his or her recommendations. Once lenses are removed, your eyes should have a rest without lens wear for at least one night. Who should not wear contact lenses? Those who:
What are the risks of wearing contact lenses for extended wear?While there are many benefits of wearing contacts, sometimes problems can occur and the risk of serious problems is greater when lenses are worn for extended wear. You should carefully discuss the benefits and risks of extended wear lenses with your eye care professional. There is an increased risk of developing a serious ocular infection, such as a corneal ulcer. A corneal ulcer may develop rapidly and cause eye pain, redness or blurry vision as it progresses. If left untreated, a scar—and in rare cases loss of vision—may result. In addition, studies have shown that smoking increases the risk of corneal ulcers for those who wear lenses overnight. What are other possible side effects of extended wear contact lenses?An inflammation of the cornea called infiltrative keratitis is another potential side effect. During the one year U.S. study, about 5% of the 1,300 eyes experienced this type of side effect. Other less serious side effects were conjunctivitis and lid irritation or discomfort while wearing the lenses, including dryness of the eye and mild burning or stinging. Are there times when you should not wear contact lenses?Your eyecare professional can tell you about situations or environmental conditions that may be inappropriate for contact lens wear. Some examples are:
How often do I replace the lenses and how do I care for them?Lenses should be replaced every month, as recommended by your eyecare professional. When removed from your eyes in between replacement times, they should be cleaned and disinfected with a chemical disinfection system (not heat), if not replaced with a new lens. The lenses are sold in multi-packs, so replacements are at hand. What are some important things to remember?
What if I have other questions about NIGHT & DAY soft contact lenses?It is essential to see and talk with your eyecare professional about your eye health and to obtain complete information about NIGHT & DAY lenses. If you have questions, discuss them with your eye care professional. If you want to read more about NIGHT & DAY Soft Contact Lenses, ask your eyecare professional for the patient instruction booklet available from CIBA Vision or the package insert written for eyecare professionals. For more information call 1-800-875-3001.
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