The pressure created by the continual renewal of fluids within the eye. The intraocular pressure is increased in glaucoma.
In acute angle-closure glaucoma, the intraocular pressure rises because the canal into which the fluid in the front part of the eye normally drains is suddenly blocked.
In chronic glaucoma, there is a gradual imbalance between the production and removal (resorption) of the fluid in the back part of the eye (with supply exceeding demand).
- Intraoperative blood salvage
The recovery of blood lost into a body cavity during surgery or because of trauma. The blood is recovered in a sterile fashion and stored in a collection bag. This blood can then be reintroduced into the patient’s circulation by an intravenous infusion, reducing the need for donor blood transfusion.
- Intraoperative radiation therapy
Radiation treatment given during surgery. Also called IORT. See also radiation therapy.
Within the peritoneal cavity, the area that contains the abdominal organs.
- Intraperitoneal chemotherapy
Treatment in which anticancer drugs are put directly into the abdomen through a thin tube.
- Intrastromal corneal ring
A plastic ring that is designed to be implanted in the cornea, the transparent structure at the front of the eye, to flatten the cornea and thereby reduce the degree of nearsightedness (myopia). The ring is placed in the corneal stroma, the middle of the five layers of the cornea.