The identification of a detached posterior hyaloid membrane within the vitreous cavity is key to diagnosing posterior vitreous detachment in an eye. Patients at increased risk of posterior ...
Posterior vitreous detachment occurs commonly in the human eye and is characterized by the separation of the posterior hyaloid membrane from the retinal surface. In most cases, posterior hyaloid ...
Peripheral vascular disease (PVD) is a condition characterised by narrowing of the arteries that supply blood to the legs. Mild cases may cause nothing more than sluggish circulation and cold feet.
When evolution skeptics want to attack Darwin's theory, they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection ...
The first big clue was a free-floating weight at the bottom of the rhopalium that ensures that the upper eye is always looking upward, even if the jellyfish swims upside down. If this eye detects ...