There are more possible reasons for the right eye to have so many black dots on the white wall, it could be impurities on the frames or contact lenses, corneal foreign bodies, or fiducial mosquitoes. The reason for the black spots on the white wall may be an abnormality in one of the structures in the path of light transmission. First of all, we should exclude impurities on the frame glasses or contact lenses, and the black spots can disappear after removing the glasses or wiping them. When there are tiny iron slag and other foreign objects on the cornea, it can also be manifested as a lot of black spots on the white wall. In both cases, the black spots usually do not move with the rotation of the eyeball. Vitreous clouding, or fiducia, can also occur in the right eye, and is more common in people with high myopia and in the elderly, leading to the sensation of floating black dots in front of the eyes. Physiologic floaters usually do not affect vision and do not require treatment. Pathological Aedes aegypti caused by vitreous hemorrhage, retinal detachment, etc. requires prompt treatment. It is recommended that patients go to the hospital in a timely manner to clarify the cause of the disease and follow the doctor’s instructions for treatment.