A corneal ulcer is an ocular emergency that raises high-stakes questions about diagnosis and management. Four corneal experts provide a guide to diagnostic differentiators and timely treatment, focusing on the types of ulcers most likely to appear in your waiting room. When a large corneal ulcer is staring you in the face, time is not on your side.
Siderosis, also called welder's lung, is a lung disease caused by breathing in iron or iron oxide dust. Siderosis is considered to be an occupational illness because people breathe in the iron dust at work. The condition usually shows up on X-rays as small, opaque spots on the worker's lungs.
Claudication is pain caused by too little blood flow to your legs or arms. This is usually a symptom of peripheral artery disease, in which the arteries that supply blood to your limbs are narrowed, usually because of atherosclerosis. Atherosclerosis occurs when arteries get thick and stiff due to a buildup of fatty deposits (plaques) on your artery walls. Peripheral artery disease (also called peripheral arterial disease) is a common circulatory problem in which narrowed arteries reduce blood flow to your limbs. When you develop peripheral artery disease (PAD), your extremities â usually your legs â don't receive enough blood flow to keep up with demand. This causes symptoms, most notably leg pain when walking (claudication).