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1 General aspects (0)   1.1 Epidemiology (8)   1.2 Population genetics (0)   1.3 Pathogenesis (0)   1.4 Quality of life (9)   1.5 Glaucomas as cause of blindness (3)   1.6 Prevention and screening (6) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (3)   2.2 Cornea (12)   2.3 Sclera (3)   2.4 Anterior chamber angle (1)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (5)     2.5.2 Schlemms canal (1)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (1)     2.6.1 Production (0)     2.6.2 Outflow (1)       2.6.2.1 Trabecular meshwork (3)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (0)   2.7 Episcleral veins and venous pressure (1)   2.8 Iris (1)   2.9 Ciliary body (2)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (14)   2.13 Retina and retinal nerve fibre layer (17)   2.14 Optic disc (23)   2.15 Optic nerve (3)   2.16 Chiasma and retrochiasmal central nervous system (3)   2.17 Stem cells (1)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (1)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (3)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (2)     3.4.2 Gene studies (17)   3.5 Molecular biology incl. 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Miscellaneous (17)

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Abstract #75485 Published in IGR 19-2

The Effect of Phacoemulsification on Intraocular Pressure in Eyes with Hyperfiltration Following Trabeculectomy: A Prospective Study

Riva I; Katsanos A; Oddone F; Quaranta L
Advances in Therapy 2018; 35: 116-123

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INTRODUCTION: The aim of this study was to evaluate the effect of visually non-significant cataract extraction in patients with hypotony maculopathy and reduced visual acuity due to over-filtering blebs after trabeculectomy. METHODS: Patients with intraocular pressure (IOP) < 6 mmHg and documented hypotony maculopathy due to over-filtering blebs after trabeculectomy were prospectively recruited. Eligible patients underwent visually non-significant cataract phacoemulsification, no earlier than 12 weeks from the diagnosis of hypotony maculopathy. IOP and visual acuity before and after phacoemulsification were compared at 1 and 3 months from surgery. Correlations between age, time interval between surgeries, baseline IOP, bleb type and IOP and visual acuity changes at 3 months after phacoemulsification were investigated. RESULTS: From January 2010 to September 2014, 20 consecutive adult patients met the inclusion criteria. Before phacoemulsification, mean IOP was 3.1 ± 1.6 mmHg. Following phacoemulsification, mean IOP increased to 8.6 ± 4.1 mmHg at 1 month (p < 0.01) and to 9.1 ± 4.3 mmHg at 3 months (p < 0.01). IOP elevation following phacoemulsification was observed in 16 of 20 eyes (80%). Mean visual acuity improved from Snellen 0.5 ± 0.1 to 0.6 ± 0.1 at 1 month (p < 0.01) to 0.7 ± 0.2 at 3 months (p < 0.01) after phacoemulsification. In 4 eyes in which the IOP was not elevated, surgical revision of the previous trabeculectomy was performed. No significant correlations between investigated variables, visual acuity and IOP changes at 3 months after phacoemulsification were found. CONCLUSION: Phacoemulsification of visually non-significant cataract appears to be a safe and effective technique for managing chronic ocular hypotony with deep anterior chamber due to over-filtering blebs.

IRCCS Fondazione GB Bietti per l'Oftalmologia, Rome, Italy.

Full article

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Classification:

12.8.11 Complications, endophthalmitis (Part of: 12 Surgical treatment > 12.8 Filtering surgery)
12.8.1 Without tube implant (Part of: 12 Surgical treatment > 12.8 Filtering surgery)
12.12.3 Phacoemulsification (Part of: 12 Surgical treatment > 12.12 Cataract extraction)

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