Eyes see things with small black spots, consider and mosquito, corneal foreign body, macular degeneration and other factors. 1. Mosquitoes: physiological mosquitoes are mostly caused by vitreous age-related changes, and the vitreous will gradually detach after liquefaction and degeneration. The etiology of pathologic Aedes aegypti is considered to be related to endophthalmitis, vitreous hemorrhage, uveitis, retinal degeneration, retinal tear retinal vein occlusion, and ocular pathology caused by systemic diseases. 2. Corneal foreign body: Patients who have small black spots when they look at something in their eyes, and this small black spot will not float, consider and corneal foreign body factors related. 3. Macular degeneration: age-related macular degeneration may have macular hemorrhage, resulting in macular structure disorder, which in turn causes double vision, skewness, distortion, and even the phenomenon of small black dots in eyes. After having the phenomenon of seeing small black spots, go to the ophthalmology department of the hospital in time and cooperate with the doctor to improve the relevant examination, and then do the targeted treatment and therapy, without delaying the condition.