Sudden blindness in the right eye may be caused by acute injury, central retinal artery, acute glaucoma, vitreous hemorrhage and other factors. 1. Acute injury: When the eye has suffered an external blow, the injury is more serious, which can make the patient’s right eye suddenly blind, accompanied by severe pain, swelling, bleeding and other uncomfortable symptoms. 2. Central retinal artery: when the patient has a central retinal artery, it causes the retina to lose blood supply, which can lead to sudden blindness of the patient’s right eye. 3. Acute glaucoma: When patients with glaucoma have an acute attack, it can lead to sudden darkness in front of the eyes, temporary loss of vision, and may be accompanied by severe headache, eye pain, photophobia and tearing. 4. Vitreous hemorrhage: If the patient has vitreous hemorrhage in the right eye, the hemorrhage blocks the light from entering the eye, which can also lead to sudden blindness of the right eye. It is recommended that patients with sudden blindness in the right eye should consult a doctor promptly to assess their condition and follow the doctor’s instructions for treatment.