Serious eye and contact question?!

Serious eye and contact question?

i went to the optomitrist yesterday. he said that due to lack of oxygen, my cornea is growing blood vessels in it. he says that once the blood vessels cover my cornea, it would do permanent eye damage.
i am now using acuvue advnced because the doctor say that it will give me more oxygen to my eye.
i am also wearing glasses in the morning and at night.

how long will it be until they stop growing, and is this possible to be corrected?
also, do you have any tips?

If you are accurately reporting what the optometrist said, he is a very poor communicator.

Encroaching blood vessels *are* a sign of inadequate oxygen supply to the cornea. Contact lenses with higher O2 transmission may well help.

The blood vessels never grow across the entire cornea, and they are not themselves the threat, though if allowed to become well established they can give a permanent "red-eyed" look.
But inadequate oxygen can lead to loss of corneal endothelial cells which can have implications for later life, including losing the possibly of wearing contact lenses, and in very extreme and rare cases, corneal oedema with pain and very poor vision.

The tips: Do not overwear lenses.
Never sleep in them.
Have adequate back-up spectacles so you are not tempted to use your contacts when your eyes are telling you they need a break.
Use contacts with high oxygen transmission.

(optometrist, retired)