Eyelid stone is also known as eyelid conjunctival stone, the formation of which may be related to living habits, age, external stimuli and so on. 1. Lifestyle habits: prolonged overuse of the eyes, often late at night, etc. can easily lead to eye fatigue, the patient’s resistance to decline, thus the emergence of ocular inflammation, which can induce the emergence of conjunctival calculi. If the patient wears contact lenses for a long time, it can constantly stimulate the lid conjunctiva, inducing inflammation, thus providing conditions for the formation of stones. 2. Age: Ageing is also a risk factor for conjunctival stones, which often occur in the elderly. 3. External stimuli: When the patient’s eyes are attacked by external pathogenic microorganisms, such as bacteria, viruses and chlamydia, or stimulated by sand and stones, the conjunctival tissue will be damaged, causing damage to the epithelial cells, which will lead to the accumulation of necrotic cells and the occurrence of stones. It is recommended that patients with significant symptoms of conjunctival stones seek prompt medical attention to evaluate their condition and follow medical advice.