tear duct exploration

The lacrimal passage surgery is to check whether the lacrimal duct is unobstructed, to determine the obstruction site and to expand the narrow lacrimal duct. Basic Information Specialist Category: Ophthalmic Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: Keep a normal mindset. Normal value It is difficult to clear the obstruction site after flushing the lacrimal passage, and it is feasible to explore the lacrimal duct. It has the dual meaning of diagnosis and treatment. Insert the lacrimal sac and feel that the probe has touched the hard wall of the lacrimal sac. With the needle as the fulcrum, the needle is rotated 90° to the eyebrow near the eyelid, so that the probe is vertical and the probe is inserted into the nose. The tear duct is 2cm deep. Depending on where the probe is blocked, it is possible to determine which part is blocked. 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 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 Contraindications before the examination: the surgery used must be clean, avoid medication. Requirements for examination: symptomatic treatment and treatment according to different causes to remove the cause. Inspection process The operation is small, and the correct operation should be free of damage. The partial obstruction can be solved by the probing operation, and the obstruction site can be correctly diagnosed. After the lacrimal passage is explored, the tube can be placed. The lacrimal passage should be flushed regularly to keep the lacrimal passage unobstructed. The lacrimal passage probing technique has a certain degree of blindness. It is necessary to continuously sum up experience and it is generally feasible to explore twice. If the lacrimal duct injury shows a little bleeding, the eyelids are swollen, you should use antibiotic eye drops, generally self-healing. 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 Generally no adverse reactions.