Lacrimal Center of Ophthalmology the Third Medical Center Chinese PLA General Hospital Beijing 100039 China;
Lacrimal Center of Ophthalmology the Third Medical Center Chinese PLA General Hospital Beijing 100039 ChinaDepartment of Ophthalmology Affiliated Hospital of Chengdc Medical College Chengde 067000 Hebei Province China;
Lacrimal Center of Ophthalmology the Third Medical Center Chinese PLA General Hospital Beijing 100039 China;
Department of Ophthalmology Affiliated Hospital of Chengdc Medical College Chengde 067000 Hebei Province China;
Department of Ophthalmology Affiliated Hospital of Chengdc Medical College Chengde 067000 Hebei Province China;
Lacrimal Center of Ophthalmology the Third Medical Center Chinese PLA General Hospital Beijing 100039 China;
Lacrimal Center of Ophthalmology the Third Medical Center Chinese PLA General Hospital Beijing 100039 China;
Lacrimal Center of Ophthalmology the Third Medical Center Chinese PLA General Hospital Beijing 100039 China;
Lacrimal Center of Ophthalmology the Third Medical Center Chinese PLA General Hospital Beijing 100039 China;
Lacrimal Center of Ophthalmology the Third Medical Center Chinese PLA General Hospital Beijing 100039 China;
lacrimal punctum lesions; epiphora; optical coherence tomography; diagnosis;