2022, Number 4
Refractive correction in patients with heterophoria. Case reports
Language: Spanish
References: 16
Page: 1-8
PDF size: 928.37 Kb.
ABSTRACT
Introduction: Heterophoria is the misalignment of the ocular axes, which is compensated during binocular fixation using the fusion mechanism. It has a high prevalence in the population.Objective: To demonstrate the importance of a personalized optical correction in patients with heterophorias.
Cases report: Four cases who attended an ophthalmology consultation for refraction due to asthenopic symptoms are presented. After a complete evaluation of every one of the cases, the presence of heterophoria was found in all of them. The existence of exophoria, mainly associated with insufficient convergence, was determined in three of them; and convergence excess esophoria was identified in one case. Personalized optical correction was indicated in all cases, taking into account the results of the examinations; also, the discomfort in the patients was eliminated.
Conclusions: Heterophorias are a frequent cause of asthenopic symptoms. It is necessary to carry out an adequate study before indicating a refractive correction, considering the identification and quantification of phoria, evaluation of fusional vergences, the study of the near point of convergence, and the accommodation-convergence relationship.
REFERENCES
Ochoa Peña UH. Procedimientos clínicos para determinar la naturaleza de forias y tropías desde la perspectiva de un optometrista [Tesis Maestría]. Guatemala: Universidad Galileo Facultad de Ciencias de la Salud; 2019 [Citado 10/09/2021]. Disponible en: Disponible en: http://biblioteca.galileo.edu/tesario/bitstream/123456789/1054/1/2019-T-lopt-010_ochoa_pena_ulises_humberto.pdf 7.
Soria Peña L. Protocolo para la evaluación de la función vergencial en un examen optométrico [Tesis de Especialidad]. Sevilla: Universidad de Sevilla; 2017 [Citado 10/09/2021]. Disponible en: Disponible en: https://idus.us.es/xmlui/bitstream/handle/11441/64674/14TFG%20LORENA%20SORIA%20PE%C3%91AS.pdf?sequence=1&isAllowed=y 12.
Chavarría Rivera KA, Espinoza Valerio EF, Estrada Blandón JF. Relación entre las disfunciones binoculares no estrábicas y ametropías, en estudiantes de 4to a 5to grado de distintos Colegios del distrito III de la Ciudad de Managua, en el periodo Mayo a Julio 2019 [Tesis de Especialidad]. Managua: Universidad Nacional Autónoma de Nicaragua; 2020 [Citado 10/09/2021]. Disponible en: Disponible en: http://repositorio.unan.edu.ni/id/eprint/15305 13.
Hernández Marrero XM, Pereda Marin AY, Ochando Reyes Y, Favars Savigne S, Iglesias Guirado NI, Monteagudo García M. Disfunciones acomodativas y binoculares no estrábicas entre los 16 y 35 años de edad. Revista Cubana de Tecnología de la Salud [Internet]. 2019 [Citado 29/09/2021];10(4):35-45. Disponible en: Disponible en: http://www.revtecnologia.sld.cu/index.php/tec/article/view/1565 15.