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Combined Surgery in the Treatment of Patients with Cataract and Primary Open-angle Glaucoma

Published Online: August 5th 2012 European Ophthalmic Review, 2012;6(4):218-221 DOI: http://doi.org/10.17925/EOR.2012.06.04.218
Authors: Giovanni Taibbi, Gianmarco Vizzeri
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Abstract:
Overview

Cataract and glaucoma are the two leading causes of blindness worldwide and frequently co-exist in the ageing population. No uniform recommendations can be proposed when the two conditions are associated. In the presence of a visually significant cataract and uncontrolled glaucoma, clinicians should consider performing combined cataract surgery and trabeculectomy. Numerous phacotrabeculectomy techniques have been proposed. However, in the absence of strong evidence in support of a specific technique, surgeons’ preference and experience may dictate the choice. Unless contraindicated, mitomycin-C should be considered in all combined procedures. In addition, novel and minimally invasive glaucoma surgical procedures, such as ab interno trabeculotomy, have recently emerged and gained in popularity. In general, these procedures have shown the potential to be combined with phacoemulsification to further lower intraocular pressure (IOP) with relatively few post-operative complications. However, available data suggest that these techniques seem unlikely to be able to achieve a degree of IOP reduction comparable with that of trabeculectomy. Rigorous studies are necessary to better understand the long-term efficacy and safety profile of these novel procedures, when performed alone or in combination with cataract surgery.

Keywords

Cataract, intraocular pressure, primary open angle glaucoma, phacoemulsification, surgery, trabeculectomy

Article:

Cataract and glaucoma are the two leading causes of blindness worldwide and frequently co-exist in the ageing population. Adequate management of these two conditions may require surgical intervention. In general, cataract extraction is necessary in case of visually significant lens opacity, while surgery for glaucoma is indicated when optimum medical therapy and/or laser surgery fails to sufficiently lower intraocular pressure (IOP) or a patient does not have access to or cannot comply with medical therapy.1

As a general rule, the management of glaucoma patients should be directed towards those treatments aimed at achieving an individualised target IOP safely and efficaciously. The presence of concomitant and visually significant cataracts can challenge the decision-making process, so that clinicians need to determine how cataract extraction would best fit the management of patients with glaucoma. In particular, when a combined surgical approach for cataract and glaucoma is desired, the timing of surgery and an accurate procedure selection are important aspects to consider. Phacotrabeculectomy techniques are not standardised and the way the procedure is performed is largely dictated by the surgeon’s preference and experience.1 Furthermore, novel and minimally invasive surgical approaches to lower IOP have been recently introduced and may be combined with phacoemulsification, representing a potential alternative to phacotrabeculectomy. This review is aimed at summarising current evidence on combined surgery in the treatment of patients with cataract and primary open angle glaucoma.

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Disclosure

The authors have no conflicts of interest to declare.

Correspondence

Gianmarco Vizzeri, Department of Ophthalmology and Visual Sciences, The University of Texas Medical Branch, 301 University Boulevard, Galveston, Texas 77555-1106, US. E: givizzer@utmb.edu

Received

2012-08-01T00:00:00

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