Description and Analysis of OCT, HRT and GDx Diagnostic Technologies in Glaucoma: An Approach to Clinical Optometry
Objective: To describe and analyze, through a literature review, the OCT (optical coherence tomography), HRT (Heidelberg tomography) and GDx (nerve fiber analyzer) diagnostic technologies in glaucoma, as an approach to clinical optometry. Materials and methods: A systematic primary literature search...
| Autor Principal: | Espinosa Castañeda, Andrea Paola |
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| Otros Autores: | Peña Martínez, Viviana, Carrizosa, Marcelo |
| Formato: | info:eu-repo/semantics/article |
| Idioma: | spa |
| Publicado: |
Universidad de La Salle. Revistas. Ciencia y Tecnología para la Salud Visual y Ocular.
2014
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| Acceso en línea: |
http://revistas.lasalle.edu.co/index.php/sv/article/view/3298 |
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| Sumario: |
Objective: To describe and analyze, through a literature review, the OCT (optical coherence tomography), HRT (Heidelberg tomography) and GDx (nerve fiber analyzer) diagnostic technologies in glaucoma, as an approach to clinical optometry. Materials and methods: A systematic primary literature search was conducted in databases such as PubMed, Medline, Cochrane, Elsevier, among others; literary texts related to the subject, written in English, Spanish and Portuguese, were also included. The information was selected within a period of publication between 2007 and 2014. Conclusion: The OCT uses a wavelength of 820 nm, assesses the retina and determines the appearance of the disease; HRT works with a 670 nm diode laser and generates three-dimensional images of the optic nerve, making it the most specific diagnostic technology to assess glaucoma; GDx employs a 780 nm polarized laser and evaluates the optic nerve, and is therefore ideal for monitoring the disease, as it determines minimal changes. Such equipment has a favorable applicability for detecting and monitoring the glaucoma; regardless of what instrument is used, it is essential for the professional have the competence to interpret the results and correlate with a clinical examination. |
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