alexa Objective Assessment of Progression after Acute Primary
ISSN: 2155-9570

Journal of Clinical & Experimental Ophthalmology
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Research Article

Objective Assessment of Progression after Acute Primary Angle Closure Using HRT and GDx

Eduardo M Normando1,2*, Laura Crawley1, Faisal Ahmed1, Philip A Bloom1 and M Francesca Cordeiro1,2
1Imperial College Ophthalmology Research Group (ICORG) CTU, Western Eye Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom
2Glaucoma & Retinal Neurodegeneration Research Group, Visual Neuroscience, UCL, Institute of Ophthalmology, London, United Kingdom
Corresponding Author : Eduardo M Normando
Imperial College Ophthalmology
Research Group (ICORG) CTU
Western Eye Hospital,
Imperial College Healthcare
NHS Trust, London, United Kingdom
Tel: +447519572069
Email: [email protected]
Received April 13, 2015; Accepted April 24, 2015; Published April 27, 2015
Citation: Normando EM, Crawley L, Ahmed F, Bloom PA, Cordeiro MF (2015) Objective Assessment of Progression after Acute Primary Angle Closure Using HRT and GDx. J Clin Exp Ophthalmol 6:425. doi: 10.4172/2155-9570.1000425
Copyright: © 2015 Normando EM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Irreversible damage to the optic nerve can follow the rapid increase of IOP during an Acute Primary Angle Closure (APAC). Despite the development of advanced imaging technology, there is still a lack of good longitudinal studies assessing patients after an acute attack. The aim of this study was to assess the progression of patients using different objective optic nerve head and retinal imaging parameters following APAC. Twenty patients with a single attack of APAC, were retrospectively assessed in this study. Patients were assessed with the Heidelberg Retinal Tomography (HRT3) and Scanning Laser Polarimeter (GDx-VCC) as well as Humphrey Visual Field (HVF) repeatedly up to eighteen months after the acute attack. Progression for each imaging modality was assessed with multiple parameters. All patients showed Retinal Nerve Fibre Layer (RNFL) and optic disc changes over time. At 18 months, 67% of patients showed progression in 4/5 GDx parameters, and 33% in all 5. HRT analysis similarly showed progression in 4/5 parameters in 70% of patients, and 30% in all 5. This study shows that structural progressive changes to RNFL and ONH occur following APAC confirming that APAC patients need long-term follow-up after the acute attack.

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