A small white dot on the eye may be related to fatty grains, wheals and conjunctivitis. The cause of the problem is different and may cause the white dots to grow on different parts of the eyes. 1. Fatty grains: The sebaceous glands of the skin around the eyes, which secrete too much oil or are blocked for a long time and cannot be eliminated, may form milky white pinhead to rice-like papules. This is a good way to get the most out of your day to day life, and the symptoms will gradually disappear. The main site of external wheals is at the lid margin at the base of the eyelashes, while internal wheals occur inside the eye, such as in the lid gland. The main manifestations are redness, swelling, and local hardness of the eyelid. 2-3 days after the onset of blepharitis, a yellowish-white pus spot will form in the center of the inflammation, and in external wheals, the pus spot occurs on the skin surface of the lid margin. The treatment of wheals is early with local heat to relieve pain and medication with symptomatic treatment such as cephalosporin eye ointment. When purulent secretions appear under the skin or conjunctiva they need to be treated by incision and drainage, or surgical excision; 3. Conjunctivitis: white spots on the eye may be caused by chronic conjunctivitis, where lymphatic vessels are blocked leading to scarring by lymphatic fluid accumulation and infiltration. In addition to a white dot on the eye, conjunctivitis also has uncomfortable symptoms such as foreign body sensation in the eye, eye itching and photophobia. Conjunctivitis is treated mainly with antibacterial eye drops such as ciprofloxacin. When there is serious discomfort, saline can be used to flush the affected eye to relieve discomfort; 4. Cataract: If a white dot appears in the center of the black eye, it is considered to be caused by cataract disease. It is caused by various reasons such as aging, genetics and metabolic abnormalities, which cause damage to the lens capsule of the eye or degeneration of lens proteins, resulting in clouding of the lens. The main treatment for cataracts is surgery to remove the diseased lens and implant an artificial lens. In addition, if small white spots appear on the conjunctival surface called blepharospots, they are mostly caused by factors such as wind and sun, or corneal blepharospots, white foreign bodies embedded in the cornea, etc. can cause small white spots on the eyes. Because of the many causes, it is recommended that if you are unable to identify the white spots on your eyes, you should go to a hospital for an ophthalmology examination to deal with the cause. Pay more attention to dietary regimen in daily life, pay attention to rest, avoid staying up late causing visual fatigue, and eat more vegetables and fruits.