Reference ranges for heterophoria and fusional reserves between 6 and 60 years of age
Objective: To describe the reference values for heterophoria measured with the prism cover test (PCT), negative (NFR) and positive (PFR) fusional reserves at 3 m and 0.4 m, and near point of convergence (NPC) in a Colombian population between 6 and 60 years of age. Materials and methods: 632 people...
| Autor Principal: | León Álvarez, Alejandro |
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| Otros Autores: | Fundación Universitaria del Área Andina Seccional Pereira, Medrano Muñoz, Sandra Milena, Márquez Galvis, Mónica Marlene |
| Formato: | info:eu-repo/semantics/article |
| Idioma: | spa |
| Publicado: |
Universidad de La Salle. Revistas. Ciencia y Tecnología para la Salud Visual y Ocular.
2017
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| Materias: | |
| Acceso en línea: |
http://revistas.lasalle.edu.co/index.php/sv/article/view/4038 |
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| Sumario: |
Objective: To describe the reference values for heterophoria measured with the prism cover test (PCT), negative (NFR) and positive (PFR) fusional reserves at 3 m and 0.4 m, and near point of convergence (NPC) in a Colombian population between 6 and 60 years of age. Materials and methods: 632 people from Pereira, Colombia, were included in this study. A routine optometric examination was performed, including evaluation of heterophoria with PCT, NFR and PFR with prism bar, NPC with an accommodative target (AT) and a red filtered light (RF). Results: Median values for fusional reserves at 3 m and 0.4 m (rupture/recovery) were: NFR: 10/6, 14/10; PFR: 20/16, 30/22; NPC: (AT) 7/10, (RF) 10/14; PCT: far 0, near –2. There was no significant change regarding ametropia and age (p > 0.05), except for PFR, mainly at 0.4 m. Conclusion: The results were slightly higher than those reported by other authors, therefore it is recommended to use as a guide the data reported in the present study. |
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