Abstract
Purpose: The objective of this paper was to compare the symptoms of asthenopia in patients at different levels of hyperopia and corrected for different accommodative efforts. Methods: This study is an experimental design and quantitative approach. Sixty-nine hyperopic patients aged between 15 and 40 were selected. Individuals with a diagnosis of accommodative insufficiency and paralysis, accommodative spasm or any type of ocular deviation were excluded. Subjects were randomly divided into four groups. Each one performed a nearvision task with different corrective lenses, varying the value of the accommodative effort. Results: There is significant reduction in the asthenopia score during the near-vision task when leaving 35% or more of the amplitude of accommodation in reserve. The linear regression showed that the variables total hyperopia (r = 0.109) and the difference between static and dynamic refraction (r = 0.135) did not obtain significant linear relationship to the asthenopia score. Conclusions: There is significant reduction in the asthenopia score when leaving 35% or more of the amplitude of accommodation in reserve. The symptoms of asthenopia are not associated to the severity of the hyperopic refractive error. The search for symptoms before the near vision task, using a questionnaire, related to the symptoms during the accommodative effort task, revealing the importance of searching for complaints about asthenopia during anamnesis, which can help ophthalmologists with prescriptions of glasses for hyperopic patients with asthenopia.
Highlights
The objective of this paper was to compare the symptoms of asthenopia in patients at different levels of hyperopia and corrected for different accommodative efforts
The linear regression showed that the variables age (r = 0.006), total hyperopia (r = 0.109) and the difference between static and dynamic refraction measured by autorefractor (r = 0.135) did not obtain significant linear relationship to the asthenopia score
There was not a linear relationship between the groups and the asthenopia score during the task, but there was a significant decrease in the asthenopia score between the j(20) and j(35) groups, remaining unchanged after the j(35) (Figure 2)
Summary
The objective of this paper was to compare the symptoms of asthenopia in patients at different levels of hyperopia and corrected for different accommodative efforts. Results: There is significant reduction in the asthenopia score during the near-vision task when leaving 35% or more of the amplitude of accommodation in reserve. Conclusions: There is significant reduction in the asthenopia score when leaving 35% or more of the amplitude of accommodation in reserve. The search for symptoms before the near vision task, using a questionnaire, related to the symptoms during the accommodative effort task, revealing the importance of searching for complaints about asthenopia during anamnesis, which can help ophthalmologists with prescriptions of glasses for hyperopic patients with asthenopia. Resultado: Houve melhora significativa dos sintomas de astenopia com correções que proporcionaram mais de 35% da amplitude de acomodação em reserva. The tendency to hyperopia is greater, due to modifications in the curvature and in the refraction indexes of the crystalline lens layers(1,5)
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