Tests for dry eye patients include testing the height of the tear river, tear secretion tests, tear film stability tests, active staining of the ocular surface epithelium, and tear osmolarity measurements. Testing the height of the tear river can initially determine the amount of tear secretion. As for the tear secretion test, including the Sehirmer I and II tests, the Schirmer I test is often used to detect the secretory function of the main lacrimal gland. Tear film stability tests are mostly judged by evaluating the tear film rupture time and are suitable for initial screening of dry eye. Active staining of the ocular surface epithelium includes fluorescein staining and lisamine green staining, which can be used to check for corneal damage. Tear osmolarity measurement, if the patient’s tear osmolarity is elevated indicates dryness of the ocular surface, generally tear osmolarity ≥ 316mOsm/L suggests the possibility of dry eye. It is recommended that patients with dry eye disease should consult the hospital in time to assess their condition and standardize the treatment under the guidance of the doctor.