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.
Avascular necrosis (AVN) is a disease that may affect several different bones as a result of temporary or. permanent loss of the blood supply to these bones. The femoral head is most commonly affected by this. disease. Usually, the patients are in their third, fourth or fifth decade of life at the time of diagnose. Initially, patients are asymptomatic, but, in time, AVN leads to joint destruction, requiring surgical. treatment and, in latter stages, total hip replacement.