What's with the stars?

The eyes appear Venus, depending on what age stage, showing that the eyes appear Venus is occasional, or very frequent performance: First, if a young and middle-aged occasionally appear Venus, generally physiological phenomenon, called physiological floaters. Is the vitreous body activity inside the eyes after the shock. Second, for the elderly and highly myopic patients, the eyes appear Venus may be posterior vitreous detachment or vitreous opacity, and even may be vitreous hemorrhage or retinal detachment precursor. It is caused by the vitreous body pulling the retina or pulling the blood vessels of the retina. If this is the case, you need to go to the hospital for examination and treatment.