What are precautions required while wearing contact lenses ?

Now users of contact lenses have increased all over the world. It is often heard that wearing a contact lens require proper precautions to be taken. W

Now users of contact lenses have increased all over the world. It is often heard that wearing a contact lens require proper precautions to be taken. What are those precautions?

or:Now users of contact lenses have increased all over the world. It is often heard that wearing a contact lens require proper precautions to be taken. What are those precautions?

or:I have found the article that most problems associated with contact lenses cause minor irritation, but serious eye conditions can be extremely painful and may lead to permanent vision loss. Avoid showering in contact lenses, and remove them before using a hot tub or going swimming. I have the bad eyesight too cause of writing and reading in the dark. I tried to wear the lenses for one day and I got that I would never do that again. More problems with it rather than help.

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