Risks of Wearing Contact Lenses
Contact lenses that are too old or don't fit properly can irritate your eyes. They can also cause blood vessels to develop into your cornea, posing a serious risk to your vision.
Contact lens difficulties can be caused by eye drops. When using contacts, it's advisable to avoid applying any form of eye drop. However, if your eye doctor recommends it, you can use wetting drops or preservative-free lubricating drops.
If your eyes are very red, painful, watery, or sensitive to light, take out your contact lenses and call your eye doctor straight once. If your eyesight is hazy or you observe a discharge (ooze or pus) coming from your eye, do the same. These could be signs of a significant eye condition.

 

Take Proper Care of Your Contacts
Before re-inserting a contact lens that has been removed from your eye, it must be cleaned and disinfected. Cleansing systems come in a variety of shapes and sizes. The option you choose is determined by the type of contact lens you wear, if you have allergies, and whether or not your eyes are prone to protein deposits. Consult your eye doctor about the best cleaning treatments to use.
To avoid severe eye infections, take extra precautions when cleaning and storing your contact lenses.
Here's what you need to do:

 

Follow instructions
Follow your eye doctor's instructions for wearing and replacing your contact lenses.
To clean and store your lenses, follow your doctor's, contact lens manufacturers, and lens cleaning solution manufacturer's instructions. If you keep your lenses in the case for an extended period of time, check the instructions to determine if you need to re-disinfect them before using them. If your contact lenses have been stored for 30 days or more without being re-disinfected, you should never wear them.
Keep all of your eye examination visits. Over time, contact lenses can stretch and your cornea can alter its shape. Visit your eye doctor on a regular basis to ensure that your lenses fit properly and that your prescription is correct.
When wearing contacts, avoid showering, swimming, using a hot tub, or doing anything else that could cause water to enter your eyes. Contact lenses with water don't mix.
Do not sleep with your contact lenses on.

 

Carefully clean and rewet
Before handling your contact lenses, wash your hands with soap and water and dry them with a lint-free towel.
Regardless of the type of lens cleaning solution you purchase, use the "rub and rinse" procedure to clean your lenses. Before soaking your contact lenses, rub them with clean fingertips and then rinse them with the solution. Even if the solution you're using is a "no-rub" type, use this procedure.
Never wet your contacts by putting them in your mouth. Saliva (spit) is a non-sterile liquid.
Contact lenses should not be rinsed or stored in water (tap or sterile water).
Never use a saline solution that you've manufactured yourself.
To disinfect your lenses, do not use saline solution or rewetting drops. They are not antiseptics.
Each time you clean and disinfect your contact lenses, use a new solution. Never re-use or top-up previously used solutions.
Pouring contact lens solution into a different bottle is not a good idea. The sterility of the solution will be compromised.
Make sure the solution bottle's tip does not come into contact with anything. When you're not using the bottle, keep it tightly closed.