A vitrectomy is a type of eye surgery to treat problems with the retina and vitreous.

Primary ovarian insufficiency (POI) is when the ovaries stop working normally before the age of 40. An ovary does not release an egg each month as it should. This can cause symptoms and make it much less likely to get pregnant.

Post-thrombotic syndrome (PTS) is a condition caused by damage to veins from a blood clot. PTS can cause chronic pain, swelling, and other symptoms in your leg. It may develop in the weeks or months after a deep vein thrombosis (DVT) of the leg.

Many people who have a stroke have problems with the arm and leg on one side of their body. Good positioning after a stroke can help treat problems with your affected arm, leg, and vision. It can also help prevent new problems from developing.

Pneumatic retinopexy is a procedure to correct a detached retina. It helps to bring back vision. It uses a special tool to repair the retina, and a small bubble of gas to hold the retina in place so it can heal.

Photodynamic therapy is a treatment for the eyes. It uses lasers and a special medicine that works when exposed to a type of light. It is done to treat age-related macular degeneration (AMD).

Pelvic congestion syndrome is a condition that causes chronic pelvic pain. It is thought to be caused by problems with the veins in the pelvic area. The pelvic area is inside the lower part of your belly (abdomen).

Parotid duct obstruction is when part of your parotid duct becomes blocked. The parotid duct is a small tube that leads from a gland that makes saliva. The duct sends the saliva into your mouth. When it's blocked, saliva can't flow normally.

An ovarian cyst is a fluid-filled sac that forms on or inside an ovary. These cysts are very common in women of all ages.

A nasal fracture (broken nose) is a break in one or more of the bones of the nose. Learn more about nasal fractures in children, including causes, symptoms, and diagnosis.