A black spot in the patient’s eye may be related to vitreous clouding, corneal foreign body, retinopathy and other lesions. 1. Vitreous clouding: the vitreous body will be aging after ageing, the vitreous body will be liquefied, and the fibers will be coalesced, which can produce point-like or filamentous turbidity, so the patient’s eyes can have black spots when looking at things. Generally, it does not affect the patient’s vision and does not require special treatment. 2. Corneal foreign bodies: If there are sand, dust and other foreign bodies in the cornea of the patient, blocking the light into the eye, the patient will also appear black spots when seeing, the patient needs to go to the hospital to take out the foreign body as soon as possible. 3. Retinopathy: patients with localized retinal punctate hemorrhage or central plasmacytoid choroidal retinopathy can also experience the discomfort of black spots in front of their eyes when they look at things. It is recommended that patients with black spots in their eyes should seek medical attention to evaluate their condition and follow the doctor’s instructions.