Extended Wear Contact Lenses For Beginners
People having a very tight working schedule and lifestyle may want to consider extended wear contact lenses.
Basically you can find that there are 2 type of schedule for wearing contact lens:
1. Daily wear (You change the lens every day)
2. Extended wear (You can wear those longer hours and can also leave them overnight)
In the United Kingdom, United States and Australia, the local Health Authority (FDA) has given the approval to some brand contact lens for daily wear only and others for extended wear. These type of lenses are designed to enable more oxygen to reach your cornea thus you will able to wear it longer than normal and still feel comfortable.
All contact lenses required to meet FDA stringent criteria and checks before they are approved to be worn for longer hours.
Most of the approved brand can be worn without removal for up to seven days. There is another newer type of contact lens that is make of a very soft material, called silicone hydrogel. This type of material is considered super permeable and contact lenses make of this material can be worn for up to 30 days without removal.
In addition to this there is another type which is a "gas permeable" lenses that can be worn for up to a month at a time. This type of lenses is sometimes called "continuous wear."
Advancement in modern technology in design and material has open doors to continue improvement of contact lens and extended used lenses can be worn safely for a full 30 days for those who can tolerate it.
As always before you choose an extended wear contact lenses, please seek Your optometrist or ophthalmologist for advise, they will be the right person to gives you advise on how your eyes are responding to this type of lenses and how frequently you should remove your lens.
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