Abstract
Purpose. To increase the efficiency of surgical treatment of patients with secondary glaucoma using microfistulizing and micro-shunting operations: Ahmed valve implantation and Ex-press shunt. Material and methods. 53 patients (53 eyes) with secondary glaucoma underwent surgical treatment in the form of implantation of Ex-press shunt and Ahmed valve (models FP7, FP8) in the Orenburg branch of The S. Fyodorov Eye Microsurgery Federal State Institution. We analyzed the results of surgical treatment of these groups of patients 1, 3, 6 and 12 months after surgery. Results. The Ahmed valve system creates a longer stable hypotensive effect in secondary glaucoma in 26 cases (85.7 %) during follow-up up to 1 year after surgery than Ex-press shunt implantation, suspending the progression of glaucoma neuroopticopathy. The degree of proliferative and scarring changes in the angle of the anterior chamber directly depends on the values of IOP: the lower the IOP level, the less the degree of changes in the angle of the anterior chamber of the eye. Conclusion. Implantation of the Ahmed valve and Ex-press shunt is a low-traumatic operation and is an effective way to compensate for secondary glaucoma due to other eye diseases in these patients, at the same time, both the hypotensive and optical effects persist even one year after the operation. Keywords: unstabilized glaucoma, Ahmed valve, Ex-press valve, true pressure.
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