Contact Lenses ABC
Combination Solutions: Some manufacturers of contact lens products have created solutions that perform several functions. For example, there are products on the market that combine cleaning, wetting and soaking solutions in one bottle. The purpose of these combination solutions is to create a convenient, one step product for the lens wearer. Disinfecting Solution: Germs can hide in contact lenses, whether they are bacterial, viral or fungal. A hydrogen peroxide or chemical disinfectant can kill these germs and help to safeguard against infection. Care should be taken if hydrogen peroxide is used, since this can be irritating to the eye. A neutralizing solution should be applied to the lens after the hydrogen peroxide. Chemical disinfectants do not need to be neutralized afterwards. Neutralizing Solution: If hydrogen peroxide is used to disinfect the contact lenses, a neutralizing solution is needed. The solution turns hydrogen peroxide into water and oxygen, which are harmless to the eye. Neutralizers can also be found in tablet form. Enzyme Preparations: Protein can build up on contact lenses over time, and must be removed periodically. Enzyme preparations remove the protein buildup and should be used weekly. Keeping contact lenses free of protein buildup will lengthen the life of the lenses. Some contact lenses will need to be disinfected after using the enzyme preparation, so read all directions thoroughly. Wetting Solution: Hard or rigid contact lenses sometimes require additional cushioning for optimal comfort. A wetting solution will create a buffer between the lens and the eye, thus improving the wearers comfort. This solution is applied to the lens before inserting it into the eye. Rewetting Solution: Occasionally, contact lenses dry out during the day when they are being worn. This can be quite uncomfortable for the wearer. It can feel as if a piece of dirt is stuck on the eye, or sometimes it can be a burning sensation. Rewetting solutions are applied to the eye while the lens is still being worn and will help alleviate the discomfort. Water: This simple, every day liquid is important to mention. Rigid gas permeable lenses can be rinsed with water without causing harm to the lenses. On the other hand, soft lenses must never be rinsed with or placed in water. Soft lenses are made of hydrogel, and water will cause significant damage to the lenses. Saline Solution: Some contact lens products will need to be washed away after applying them to the lenses. If water cannot be used for this purpose, as in the case of soft lenses, a sterile saline solution can be used. Saline solutions are also used to clean lenses in a heating system or lenses can be stored in the saline. There are many products aimed at contact lens wearers, and it is important to know which ones to use. Rigid gas permeable lenses require a different set of maintenance products than soft lenses. An optometrist will provide the contact lens wearer with a guideline on how to maintain the lenses and will probably recommend the best brands to use. It is important to follow the guideline as close as possible, not only for the longevity of the lenses but for the overall health of the eyes. Anti-Reflective Coatings for Glasses Necessary or Not | ||
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