Have worn colored contacts (not very permeable) for years, and lately had infections, etc. from overuse. did this cause rubeosis iridis as i have do not have carotid blockage or diabetes?

No: Contact lens use, or even abuse cannot cause rubeosis iridis. Rubeosis occurs as a result of poor circulation to internal structures inside the eye, such as a vascular occlusion, diabetes, etc. Contact lens overwear can cause blood vessels to form in the cornea (corneal neovascularization), but this is very different than rubeosis iridis. You need to see your eye doctor promptly.

No: Rubeosis irides is the growth of abnormal blood vessels on the iris and in the drainage area of the eye. This is due to poor blood flow in the eye that cause the retina to produce growth factors that cause these abnormal blood vessels to grow. This is not due to contact lens use. Most common cause is carotid occlusive disease and retinal vein conclusions. Rarely, diabetes can cause this as well.

No: True rubeosis iridis is caused by chronic lack of blood flow inside the eye. You should see a retinal specialist and have a Fluorescein angiogram with pictures of the iris and retina to confirm diagnosis and find the cause. It is a serious vision threatening condition.