Clinical no fly syndrome, mostly refers to fly mosquito, mostly caused by vitreous clouding, its etiology is divided into physiological and pathological two, may be caused by aging, vitreous inflammation, vitreous hemorrhage.
1.Physiological vitreous clouding: with the increase of age, there will be part of the metabolic cells or metabolic products remain in the vitreous, the vitreous itself is semi-liquefied state, these cells or metabolic products floating in the vitreous body, resulting in vitreous clouding, so the patient can appear in front of the eyes of the black shadow similar to the flies in front of the eyes floating symptoms.
2. Pathological vitreous clouding: vitreous blood or vitreous inflammation patients because of a large number of inflammatory products or blood clots suspended in the vitreous, resulting in vitreous clouding. This kind of vitreous clouding belongs to the pathologic vitreous clouding, in addition to the black shadow floating in front of the eyes, the patient can also appear vision loss.
It is recommended that patients with significant symptoms of vitreous clouding seek prompt medical attention to evaluate their condition and follow the doctor’s instructions for treatment.