Inflammation and pus in the eyes of the elderly may be related to keratitis, conjunctivitis and dacryocystitis, etc. The specific cause of the disease needs to be diagnosed after medical examination. Keratitis refers to the inflammatory lesions caused by pathogens attacking the corneal tissue, common causes include bacterial infections, physical and chemical injuries, etc. Patients may experience eye pain, conjunctival congestion, blurred vision and other uncomfortable symptoms, which may also be accompanied by an increase in pus discharge from the eye. Conjunctivitis refers to the conjunctival tissue in the body’s own factors or external factors under the action of the inflammatory reaction lesions, in the inflammatory stimulation, the patient may appear conjunctival congestion, eye swelling, burning sensation of the eye, itching and other discomforts, but also accompanied by an increase in ocular secretions, bacterial conjunctivitis patients with ocular secretions were yellow, sticky. Dacryocystitis is an inflammatory lesion in the nose and eyes caused by narrowing or obstruction of the nasolacrimal duct, and patients may experience discomfort such as tearing and congestion of the eyes, and pus discharge may occur when the lacrimal sac area is pressed. In acute cases, there may be symptoms of lymph node enlargement in front of the ear, and in severe cases, systemic symptoms such as chills and fever may occur. It is recommended that patients with eye inflammation and pus should seek medical attention to evaluate their condition and treat under the guidance of a doctor.