The eyes appear flocculent floating, this is usually the performance of vitreous turbidity, after the emergence of this situation, to carry out a detailed fundus examination. Vitreous turbidity can be divided into two kinds, the first is physiological vitreous turbidity, this condition is a degenerative lesion with age, so will not affect vision, do not need to deal with, also known as mosquitoes; the second case is pathological vitreous turbidity, such as uveitis or intraocular hemorrhagic disease, caused by the vitreous turbidity. In this case, in addition to the floating flocculent in front of the eyes, there will also be vision loss, so for this case need to actively treat the specific cause of symptomatic treatment. If the intraocular hemorrhage is large and does not absorb on its own, vitrectomy can be considered to improve the symptoms and improve vision.