gonioscopy

The width of the anterior chamber angle and its variation in width when the intraocular pressure fluctuates are of great value in the diagnosis and treatment of various glaucoma. In addition, anterior chamber keratoscopy is also helpful in the diagnosis of foreign bodies in the anterior chamber angle or in the iris root tumors and neovascularization. Basic Information Specialist Category: Ophthalmic Examination Category: Other Inspections Applicable gender: whether men and women apply fasting: not fasting Tips: The contact lens is not clean before inspection. Normal value Under static observation, all structures such as the front boundary line to the ciliary body band and the iris root can be seen, and sometimes the comb ligament can be seen. Clinical significance The abnormal result front line is not a thin line of white shiny protrusions, and the sclera is sinking black. Need to check patients with glaucoma. Precautions Contraindications before inspection: The contact lens is not clean. Requirements for inspection: Gently close your eyes. Inspection process Before use, the anterior chamber contact lens should be washed with soapy water, rinsed with water, dried and immersed in 1:6000 liters of mercury for 15-30 minutes. When placed, first drop 0.5% of the cain in the conjunctival sac 2 to 3 times, so that the patient's eyes look down. The examiner lifts the upper eyelid of the affected eye and will be filled with 1% methylcellulose or saline. The contact lens is placed in the conjunctival sac, so that the patient's eyes are gently closed to prevent falling off. In use, there is no air bubble in the gap between the mirror and the cornea, so as to maintain a complete refractive interstitial, which is beneficial for examination. Not suitable for the crowd Inappropriate crowd: no redness and pus in the eyes.