Sensibilidad al contraste en pacientes con glaucoma primario de ángulo abierto
Contrast sensitivity is the ability to discriminate differences in luminance at various spatial frequencies. Glaucoma is an optic neuropathy and can decrease contrast sensitivity due to loss of ganglion cells and nerve fibers. Objective: To identify the contrast sensitivity values in patients with p...
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| Main Authors: | , , |
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| Other Authors: | |
| Format: | Trabajo de grado (Pregrado y/o Especialización) |
| Language: | spa |
| Published: |
Universidad Antonio Nariño
2023
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| Subjects: | |
| Online Access: | http://repositorio.uan.edu.co/handle/123456789/7918 |
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| Summary: | Contrast sensitivity is the ability to discriminate differences in luminance at
various spatial frequencies. Glaucoma is an optic neuropathy and can decrease contrast
sensitivity due to loss of ganglion cells and nerve fibers. Objective: To identify the contrast
sensitivity values in patients with primary open-angle glaucoma and control patients, with
the Pelli Robson and CSV-1000 tests. Methods: Studies published between 2006 to 2022,
PubMed and Scielo were identified. Results: 6 articles in English language were
analyzed, 4 descriptive observational and 2 analytical observational, evaluating patients
with primary open angle glaucoma, 1 medium and moderate stage, 2 advanced and 3
without stage. Three of the studies measured contrast sensitivity with the Pelli Robson
test and three with the CSV-1000. Reporting an average contrast sensitivity of 1.6 log in
glaucoma patients evaluated with Pelli Robson and an average of 1.07 in low, medium
and high spatial frequencies in the group of glaucoma patients measured with CSV1000E. Conclusion: The included studies evidenced the decrease in contrast sensitivity
in patients with glaucoma in the CSV-1000 and Pelli Robson tests. |
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