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.