A new robotic system could perform delicate eye surgery

Retinal vein occlusion (RVO) is a severe disease that occurs when a vein in the light-sensitive layer at the back of the eye (i.e., the retina) becomes blocked, which results in a loss of vision. There are currently a few medical interventions that address RVO, including the periodic injection of medications that block the abnormal growth of blood vessels or of steroids, which reduce swelling and inflammation.

Heart computational model can help doctors operate on and treat patients with arrhythmia

Atrial fibrillation is one of the most common kinds of arrhythmia, causing the heart not to contract properly in order to pump the blood, which can lead to the formation of thrombi (blood clots) and the consequent associated risks (heart attack, stroke). Normally, patients with atrial fibrillation take anticoagulants, but the dose must be adjusted and kept as low as possible, because these drugs have negative side effects, especially as they increase the risk of heavy bleeding. If bleeding is internal, it can lead to hemorrhagic strokes, embolisms or abdominal bleeding.