tear duct examination

The lacrimal examination method includes a fluorescein test and a lacrimal lavage test for judging whether the lacrimal passage is unobstructed and understanding the location and nature of the lacrimal passage. Basic Information Specialist Category: Ophthalmic Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: The patient takes a sitting position or a lying position. Normal value Check if the lacrimal passage passes and if there is any secretion. Clean the lacrimal duct before surgery or verify that the lacrimal passage is unobstructed after surgery. Clinical significance Abnormal result 1, the lacrimal duct obstruction caused by trauma. 2, chronic dacryocystitis flush with purulent secretions. 3, other acute inflammation of the eye. 4, there is bleeding tendency or with nasal deformity. 5, acute dacryocystitis. People in need of examination: check whether the lacrimal duct is unobstructed, determine the obstruction site and expand the narrow lacrimal duct. Precautions Taboo before inspection: Pay attention to the movements to be light and avoid rough operation. Requirements for examination: The patient takes a sitting position or a lying position. Inspection process 1. After the punctum is dilated, switch to the lacrimal passage to rinse the needle, place it on the syringe containing the irrigation solution, and insert the lacrimal irrigation needle into the punctum according to the same method of lacrimal duct expansion. 2. After entering about 10mm, you can slowly inject the rinse into the lacrimal duct (Figure 4). If the lacrimal passage is smooth, the flushing fluid will flow out from the nostrils or the pharynx, otherwise it will not work. Not suitable for the crowd There is no scope for this, and it is unnecessary to check if the eyes are fine. Adverse reactions and risks May cause redness and swelling of the eyes.