The patient was a 29-year-old female. He complained of foreign body sensation in his right eye for half a year and went to Beijing Tongren Eye Center, Beijing Tongren Hospital affiliated to Capital Medical University. Ocular examination: binocular visual acuity was 0.8, intraocular pressure was 14 mmHg (1 mmHg =0.133 kPa) in the right eye and 16 mmHg in the left eye; The eyelashes of the lower eyelids of both eyes grew upside down, touching the cornea, and there was a blood vesicle below the nose of the cornea of the right eye, in which the plane of bloody fluid was visible (Quintessence Picture 1In a). Coherence light tomography of the anterior segment of the eye revealed that blood vesicles were located under the corneal epithelium (B in Quintessential Picture 1). Clinical diagnosis: right eye corneal vesicles; Trichiasis of the lower eyelids of both eyes. Blood blisters were punctured with a 1 ml syringe needle under topical anesthesia with iprocaine hydrochloride, bloody fluid spilled, local anti-inflammatory and anti-infective therapy was given, and the cornea healed well.