Nowadays, a wide choice of local IOP-lowering medications allows ensuring a successful intraocular pressure compensation and primary open angle glaucoma stabilization. However, taking into consideration a long term action of drugs on the ocular surface, even without clinical manifestations there is a direct inflammatory cells’ activation with mixed toxic and allergic changes, which is confirmed by histology, immune-histology, and impression cytology methods. Such chronic sub-clinical inflammation represent a potential risk of excessive fibroblast proliferation with subsequent rapid postoperative scarring of new outflow pathways and atypical filtration bleb formation. It is shown that there is a clear relationship between number of glaucoma drugs used, treatment duration, intensity of conjunctival infiltration with inflammatory cells and fibroblasts, and risk of episcleral fibrosis and subconjunctival scarring during post-op period. (For citation: Petrov SYu, Lovpache DzhN, Loskutov IA, Safronova DM. The influence of local IOP-lowering therapy on the anterior segment tissues and outcome of glaucoma filtering surgery. Ophthalmology Journal. 2017;10(4):41-47. doi: 10.17816/OV10441-47).
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